Cisco PA-VXA Series, PA-VXA-1TE1-24, PA-VXA-1TE1-30, PA-VXB Series, PA-VXB-2TE1 Installation And Configuration Manual

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T1/E1 Digital Voice Port Adapter Installation and Configuration

Product Numbers: PA-VXA-1TE1-24+(=), PA-VXA-1TE1-30+(=), PA-VXB-2TE1(=), PA-VXB-2TE1+(=), PA-VXC-2TE1(=), P A-VXC-2TE1+(=)

Pla tfor ms Sup por ted: Cis co 7200 Se ri es, Ci sco 72 00 VXR, Cisc o 730 1 Ro uters , Cisco 7401ASR Routers, and VIP in the Cisco 7500 Series

Corporate Headquarters

Cisco Systems, Inc. 170 West Tasman Drive San Jose, CA 95134-1706 USA http://www.cisco.com Tel: 408 526-4000

800 553-NETS (6387)

Fax: 408 526-4100

Text Part Number: OL-3592-02

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THE SPECIFICATIONS AND INFORMATION REGARDING THE PRODUCTS IN THIS MANUAL ARE SUBJECT TO CHANGE WITHOUT NOTICE. ALL STATEMEN TS , INF O RMA TION, AND RE C OM ME ND AT IO NS IN TH IS MA NU AL ARE B ELI EV ED TO BE ACCURAT E B U T ARE PRE S EN TED W ITH O UT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED. USERS MUST TAKE FULL RESPONSIBILITY FOR THEIR APPLICATION OF ANY PRODUCTS.

THE SOFTWARE LICENSE AND LIMITED WARRANTY FOR THE ACCOMPANYING PRODUCT ARE SET FORTH IN THE INFORMATION PACKET THAT SHIPPED WITH THE PRODUCT AND ARE INCORPORATED HEREIN BY THIS REFERENCE. IF YOU ARE UNABLE TO LOCATE THE SOFTWARE LICENSE OR LIMITED WARRANTY, CONTACT YOUR CISCO REPRESENTATIVE FOR A COPY.

The following information is for FCC compliance of Class A devices: This equipment has been tested and found to comply with the limits for a Clas s A d igi tal d evi ce, pursua n t to part 15 of the FCC rules. These limi ts are designe d to provide r easonable prot ection a gainst harmful interfe rence when the e quipme nt is operate d in a comm er cial environment. This equi pment gener ates, us es , and can ra diate radi o-fr equ ency energy a nd, i f not install ed and us ed in a ccorda nce wit h the ins tructi on ma nual, ma y caus e harmful interference to radio communi c ations . Operati on of thi s equipme nt in a reside ntial a rea is likel y to ca use harmfu l inter f erenc e, i n which case users wi ll be require d to correct the interference at their own expense.

The following information is for FCC compliance of Class B devices: The equipment described in this manual generates and may radiate radio-fre q ue ncy ene rgy. If it is not installed in accordance with C isco’s i nst allation instruc tions, i t may c ause inte rferen ce with radio a nd televis ion recep tion. T hi s eq uip ment has been teste d and found t o comply with the limits for a Class B digital de vice in accorda n ce with the specifications in part 15 of the FCC rules. These specifications are designed to provide reasonable protection against such interference in a residential installation. However, there is no guarantee that interference will not occur in a particular installation.

Modifying the equipment wit hout C isco’s w ritten authoriza tion may r esult in the e quipme nt no longer c omplyi ng with F CC requ irements for Class A or Class B digital devices. In that event, your r ight to use t he equipme nt may be limi ted by FCC regul ati ons, and yo u may be re qui red to corre ct any interference to radio or television communications at your own expe nse .

You can determine whether your equipme nt is causing i nterfe rence by t urning i t off. If the inter ferenc e stops, it was proba bly c a used by the Cisc o eq uipment or one of it s peripheral devices. If the equi pme nt cause s inte rfere nce to radio or t ele vision rece ptio n, try to correct t he int erferenc e by using one or mor e of the followi ng measure s:

• Turn the television or radio ant enna unt il the int erferenc e st ops.

• Move the equipment to one side or the ot her of the tel evisi on or radi o.

• Move the equipment farther awa y fr om the televi sion or ra dio.

• Plug the equipment into an ou tlet that i s on a diffe rent c ircuit from the televi sion or ra dio. ( That is, make cert ain the e quipmen t and th e telev ision or ra dio ar e on cir cuits controlled by different cir cuit brea kers or fuse s.)

Modifications to this produc t not aut horized by C is co Systems, Inc. cou ld void t he FCC approva l and ne gate your a uth ority to operate the product. The Cisco implementatio n of TCP he ader co mpres sion is an adap tat ion of a pro gram developed by the Unive rsi ty of California , Berke ley (U CB) a s part of UC B’s publi c

domain version of the UNIX oper ati ng system. All ri ghts rese rved . Copyri ght © 198 1, Rege nts of the Unive rsi ty of C alifornia . NOTWITHSTANDING ANY OTHER WARRANTY HEREIN, ALL DOCUMENT FILES AND SOFTWARE OF THESE SUPPLIERS ARE PROVIDED “AS IS” WITH

ALL FAULTS. CISCO AND THE ABOVE-NAMED SUPPLIERS DISCLAIM ALL WARRANTIES, EXPRESSED OR IMPLIED, INCLUDING, WITHOUT LIMITATION, THOSE OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OR ARISING FROM A COURSE OF DEALING, USA GE, OR TRADE P R AC T I CE .

IN NO EVENT SHALL CIS CO OR ITS SUPPLIERS BE LI ABLE FOR ANY INDIRECT, SPECIAL, CONSEQUENTIAL, OR INCIDENTAL DAMAGES, INC LUDING, WITHOU T LI MIT ATI ON, LO ST P ROF ITS O R L OSS OR DAM AG E TO DAT A AR ISI NG OU T OF T HE US E OR INA BIL ITY T O USE TH IS M ANU AL , EVE N I F CIS CO OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.

CCIP, the Cisco Arrow logo, the Cisco Powered Network mark, the Cisco Systems Verified logo, Cisco Unity, Follow Me Browsing, FormShare, iQ Breakthrough, iQ Expertise, iQ FastTrack, the iQ Logo, iQ Net Readiness Scorecard, Networking Academy, ScriptShare, SMARTnet, TransPath, and Voice LAN are trademarks of Cisco Systems, Inc.; Changing the Way We Work, Live, Play, and Learn, Discover All That’s Possible, The Fastest Way to Increase Your Internet Quotient, and iQuick Study are service marks of Cisco Systems, Inc.; and Aironet, ASIST, BPX, Catalyst, CCDA, CCDP, CCIE, CCNA, CCNP, Cisco, the Cisco Certified Internetwork Expert logo, Cisco IOS, the Cisco IOS logo, Cisco Press, Cisco Systems, Cisco Systems Capital, the Cisco Systems logo, Empowering the Internet Generation, Enterprise/Solver, EtherChannel, EtherSwitch, Fast Step, GigaStack, Internet Quotient, IOS, IP/TV, LightStream, MGX, MICA, the Networkers logo, Network Registrar, Packet, PIX, Post-Routing, Pre-Routing, RateMUX, Registrar, SlideCast, StrataView Plus, Stratm, SwitchProbe, TeleRouter, and VCO are registered trademarks of Cisco Systems, Inc. and/or its affiliates in the U.S. and certain other countries.

All other trademarks mentioned in this document or Web site are the property of their respective owners. The use of the word partner does not imply a partnership relationship between Cisco and any other company. (0208R)

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Preface vii

Objectives vii Organization viii Related Documentation viii Obtaining Documentation ix

Cisco.com ix Document ation C D-R OM x Ordering Documentation x Document ation Fe edb ack x

Obtaining Technical Assistance xi

Cisco.com xi Technical Assistance Center xi

Cisco TAC Website xi Cisco TAC Escalation Center xii

CHAPTER

Obtaining Additional Publications and Information xii

1 Overview 1-1

Port Adapter Overview 1-1 Features 1-3 LEDs 1-5 Cables, Connectors, and Pinouts 1-5 Port Adapter Slot Locations on the Supported Platforms 1-6

Cisco 7200 Series and Cisco 7200 VXR Routers Slot Numbering 1-7 Cisco 7301 Router Slot Numbering 1-7 Cisco 7401ASR Router Slot Numbering 1-8 VIP Slot Numbering 1-8

Identifying Interface Addresses 1-9

Cisco 7200 Series Routers Interface Addresses 1-10 Cisco 7301 Router Interface Addresses 1-10 Cisco 7401ASR Router Interface Addresses 1-11 Cisco 7500 Series Routers Interface Addresses 1-11

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Contents

CHAPTER

2 Preparing for Installation 2-1

Required Tools and Equipment 2-1 Software and Hardw ar e Requi re me nts 2-2 Checking Hardware and Software Compatibility 2-3 Safety Guidelines 2-3

Safety Warnings 2-3 Electrical Equipment Guidelines 2-5 Telephone Wiring Guidelines 2-5 Preventing Electrostatic Discharge Damage 2-6

FCC Class A Compliance 2-6

3 Removing and Installing Port Adapters 3-1

Handling Port Adapters 3-1 Online Insertion and Removal 3-3 Warnings and Cautions 3-4

Chassis Warning—Disconnecting Telephone-Network Cables 3-5 Lightning Activity Warning 3-5 Service Personnel Warning 3-6 No. 26 AWG Warning 3-7 Customer Equ ipm ent Wa rning 3-8

CHAPTER

Port Adapter Removal and Installation 3-9

Cisco 7200 Series—Removing and Installing a Port Adapter 3-10 Cisco 7301 Router—Removing and Installing a Port Adapter 3-11 Cisco 7401ASR Router—Removing and Installing a Port Adapter 3-12 Cisco 7500 Series—Removing and Installing an Interface Processor 3-13 VIP—Removing and Installing a Port Adapter 3-14

Connecting Interface Cables 3-15

4 Configuring the PA-VXA, PA-VXB, and PA-VXC 4-1

Using the EXEC Command Interpreter 4-1 Configuring th e Interfac e 4-2

Shutting Down a Controller 4-2 Performing a Basic Configuration 4-4

Specifying Card Type is Required 4-4

Configuring Vo ice ove r IP 4-6

Prerequisite Tasks 4-6 How VoIP Handles a Typical Telephone Call 4-7 Configurat ion Task s 4-7

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Configure IP Networks for Real-Time Voice Traffic 4-9

Configure RSVP for Voice 4-10 Configure Multilink PPP with Interleaving 4-11 Configure RTP Header Compression 4-12 Configure Custom Queuing 4-14 Configure Weighted Fair Queuing 4-14

Configure Number Expansion 4-14

Create a Number Expansion Table 4-15 Expand a Number 4-16

Configure Dial Peers 4-16

Inbound Versus Outbound Dial Peers 4-17 Create a Peer Configuration Table 4-18 Configure POTS Peers 4-19 Outbound Dialing on POTS Peers 4-19 Direct Inward Dial for POTS Peers 4-20 Configure VoIP Peers 4-21 Verify Configuration 4-22 Troubleshooting Tips 4-22

Configure Voice Ports 4-22

Configure FXO or FXS Voice Ports 4-23 Validation Tips 4-24 Troubleshooting Tips 4-24 Fine-Tune FXO and FXS Voice Ports 4-24 Configure E&M Voice Ports 4-26 Validation Tips 4-27 Troubleshooting Tips 4-27 Fine-Tune E&M Voice Ports 4-27

Optimize Dial Peer and Network Interface Configurations 4-29

Configure IP Precedence for Dial Peers 4-29 Configure RSVP for Dial Peers 4-30 Configure Codec and VAD for Dial Peers 4-31

Contents

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Configuring Vo ice ove r Frame Re lay 4-32

Voice over Frame Relay Configuration Example 4-33

Checking the Configuration 4-34

Using show Commands to Verify the New Interface Status 4-34

Troubleshooting Tips 4-34 Using the show version or show hardware Commands 4-35 Using the show diag Command 4-37 Using the show interfaces Command 4-40

Using loopback Commands 4-42

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Contents

T1 Loopback Exam ple s 4-42 E1 Loopback Exam ple s 4-44

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Preface

This prefa ce de s cr ibe s t he o bj ect ives an d organ ization o f th is d o cu ment and ex plains how to fi nd additional information on related products and services. This preface contains the following sections:

• Objectives, page vii

• Organiz at ion, pa ge viii

• Related Documentation, pageviii

• Obtaining Documentation, page ix

• Obtaini ng Technical A ssistance, p ag e xi

Objectives

This document describes how to install and configure the PA-VXA-1TE1 Low-Capacity Digital Voice port adapters (PA-VXA-1TE1-24+[=] and PA-VXA-1TE1-30+[=]), the PA-VXB-2TE1 Moderate-Capacity Digital Voice port adapter (PA-VXB-2TE1[=]), the PA-VXC-2TE1 High-Capacity Digital Voice port adapter (PA-VXC-2TE1[=]), the PA-VXB-2TE1+ Enhanced Moderate-Capacity Digital Voice port adapter (PA-VXB-2TE1+[=]) and the PA-VXC-2TE1+ Enhanced High-Capacity Digital Voice port adapter (PA-VXC-2TE1+[=]), hereafter referred to as the PA-VXA, PA-VXB, and PA - VXC. Thes e p o rt ad ap ters are u sed i n t h e f ol lowin g pl at for m s:

• Cisco 7200 series routers, consisting of the two-slot Cisco 7202, the four-slot Cisco 7204 and

Cisco 7204VXR, and the six-slot Cisco 7206 and Cisco 7206VXR

• Cisco 7301 router

Note The Cisco 7301 router is currently supported by the PA-VXB-2TE1+(=)

and the PA-VXC-2TE1(=) port adapters only.

• Cisco 7401ASR router

Note The Cisco 7401ASR router is currently supported by the PA-VXB-2TE1+(=)

and the PA-VXC-2TE1+(=) port adapters only.

• Versatile Interface Processor (VIP) in Cisco 7500 series routers, consisting of the five-slot

Cisco 7505, the seven-slot Cisco 7507, and the thirteen-slot Cisco 7513

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Organization

This docu m en t co nt ain s t he f ollow in g ch ap ter s:

Section Title Description

Chapter 1 Overview Describes the PA-VXA, PA-VXB, and PA-VXC,

Chapter 2 Preparing fo r I nst allation Describes safety considerations, tools required,

Chapter 3 Removing and Installing

Chapter 4 Configuring the PA-VXA, PA-VXB,

Port Adapters

and PA-VXC

Preface

and thei r LED d isplays, cables, an d re cep ta cles.

and procedures you should perform before the actual in stallati on .

Describes the procedures for installing and removing t he PA-VXA, PA-VXB, and PA-VXC in the supp ort ed pl at for ms .

Provides instructions for configuring the PA-VXA, PA-VXB, and PA-VXC on the supported platforms.

Obtaining Documentation

• Cisco 7301 routers:

For hard w are inst all at io n and main te na nc e inf orm at ion , re fe r to the Cisco 7301 Installation and Configuration Guide or the Cisco 7301 Router Quick Start Guide.

• Cisco 7401ASR routers:

For hardware installation and maintenance information, refer to the Cisco 7401ASR Ins tall at io n and Configuration Guide or the Cisco 7401ASR Quick Start Guide.

• Cisco 7500 series r outers:

For ha rdware installation and maintenance information, re fer to the following publications:

–

Cisco 7500 Installat io n an d Co nf igu ra ti on or t he qui ck s tart gu ide t ha t shi pped wit h y our r oute r

–

Second-Generation Versatile Interface Processor (VIP2) Installation and Configuration

–

Fourth-Gen er at io n Versatile Inter fac e Pr o ces so r ( VIP 4 ) I nst allation a nd C o nfigu r ati on

–

Versatile Interface Processor (VIP6-80) Installation and Configuration

• For inte rnat ional age ncy co m p li an ce, safety, and statutory inform ati on f o r WAN interfaces:

–

Site Prep ar at ion and Saf ety Guid e

–

Regulatory Compliance and Safety Information for the Cisco 7200 Series Routers

–

Cisco 7300 Series Internet Routers Regulatory Compliance and Safety Information

–

Cisco 7401ASR Regulatory Compliance and Safety Information

–

Regulatory Compliance and Safety Information for the Cisco 7500 Series Routers

• To view Cisco documentation or obtain general information about the documentation, refer to the

following sources:

–

“Obtaining Documentation” section on pag e i x.

–

“Obtaining Technical Assistance” se ction on pag e xi.

–

Customer service at 800 553-6387 or 408 526-7208. Customer service hours are 5:00 a.m. to 6:00 p.m. Pacific time, Monday through Friday (excluding Cisco-observed holidays).

–

Cisco Information Packet that shipped with your router or switch.

Obtaining D ocumentation

Cisco provides several ways to obtain documentation, technical assistance, and other technical resources . Th es e s ec tio n s expla in h ow t o obtain tech ni ca l information from Cisco S y stems.

Cisco.com

You can access th e most cur re nt C isco d o c u men tation o n t h e World Wide Web at this U R L:

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http:/ /w w w.cisco.com/u nivercd/home/hom e.htm

You can access th e Cisco w eb s ite at this U RL:

http:/ /w w w.cisco.com

International Cisco web sites can be accessed from this URL:

http://w w w.cisco.c om/publi c/ cou n tr ie s _l an gu ag es.shtml

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Obtai n i n g D o cumentation

Documen t at i on CD-ROM

Cisco docum en tatio n and addi tional li terat ure ar e available in a Cisco Do cume ntati on CD- ROM package, which may have shipped with your product. The Documentation CD-ROM is updated monthly and may be more current than printed documentation. The CD-ROM package is available as a single unit or through an annual subscripti on.

Registered Cisco.com users can order the Documentation CD-ROM (product number DOC-CONDOCCD=) through the online Subscription Store:

http:/ /w w w.cisco.com/g o/subscr i ption

Orderi ng D ocum entation

You can find instructions for ordering documentation at this URL:

http:/ /www.cisco.com/u nive r c d /c c/td/ do c /es_in pck/pd i . htm

You can o r de r C is co do cu m e nt ati on i n th ese way s:

• Registered Cisco.com users (Cisco direct customers) can order Cisco product documentation from

the Networking Products MarketPlace:

Preface

http://www.cisco.com/en/US /partne r/ ordering/index.s h tml

• Registered Cisco.com users can order the Documentation CD-ROM (Customer Order Number

DOC-CONDOCCD=) through the online Subscription Store:

http:/ /w w w.cisco.com/g o/subscr i ption

• Nonregist er ed C isco.com us er s can orde r do cu m e nt ati on t hr o ugh a local ac co unt r epresent ative by

calling C isco Syst ems C o rpo ra te H ead q ua rt er s ( Ca lif o rn i a, U .S.A.) at 408 526- 72 0 8 or, elsewhe re in No rt h A m e r ic a , by callin g 800 553- N E TS ( 6387).

Documentat i on Feedback

You can submit comments electronically on Cisco.com. On the Cisco Documentation home page, click Feedback at the top of th e page.

Yo u c an e-mail your c o m m e nts to bu g- d oc@ci s co .c o m . You can submit your comments by mail by using the response card behind the front cover of your

docum e nt or by writing to the fo l l owi n g addr es s : Cisco Systems

Attn: Cu s t om er Document Ordering 170 West Tasman Drive San Jose, CA 95134-9883

We appreciate your comments.

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Preface

Obtaining Technical Assist ance

Cisco p rovi des Cisco.com , w hi ch in cl ud es the Cisco Technical As s ista nc e Center (TAC) We bsi te, as a starting po int for all technica l assist ance. Custom ers an d partne rs can obtai n onli ne docum ent ation, troubl eshoot ing tip s, and sa mple c onfigu rati ons fr om the Cis co TAC webs ite. Ci sco.co m regi stere d users have complete access to the technical support resources on the Cisco TA C website, including TAC tools and utiliti es.

Cisco.com

Cisco.co m off ers a su ite of in t er act ive, ne twor ke d s er vices th at let you a ccess Cisco i nf o rma ti on , networking solutions, services, programs, and resources at any time, from anywhere in the world.

Cisco.com provides a broad range of features and services to help you with these tasks:

• Streamline business processes and improve productivity

• Resolve technical issues with online support

• Download and test software packages

Obtaining Technical Assistance

• Order Cisco learning materials and merchandise

• Register for online skill assessment, training, and certification programs

To obta in cu sto m i zed i nformation a nd s e rv ic e, y o u can s e lf -regi s te r on C isco .com at th is UR L:

http:/ /w w w.cisco.com

Technical A ssi stance Center

The Cisc o TAC is availab le to a ll customer s wh o need tech ni cal ass i stance wit h a C isco produ ct , technology, or solution. Two levels of support are available: the Cisco TAC website and the Cisco TAC Escala ti on Cen ter. The ave nu e of su ppo rt th at you choos e de pends on th e pr io ri ty of the p rob le m and th e conditio n s stated in ser vi ce co nt ra cts, when ap pl ica bl e.

We categorize Cisco TAC inquiries according to urgency:

• Priori ty level 4 (P4) —You need information or assistance concerning Cisco product capabilities,

product installation, or basic product configuration.

• Priori ty level 3 (P3) —Your network pe rformance is degraded. Network functionality is noticeably

impaired, but most busine ss operations continue.

• Priori ty level 2 (P2) —Your production network is severely degraded, affe cting significant aspects

of business operations. No workaround is available.

• Priority level 1 (P1)—Your product ion n et w ork is d ow n, a nd a c rit ica l im pac t to bus ine ss op erat io ns

will occur if service is not restored quickly. No workaround is available.

Cisco TAC Website

You can use the Cisco TAC website to resolve P3 and P4 issues yourself, saving both cost and time. The site provides around-the-clock access to online tools, knowledge bases, and software. To access the Cisco TAC website, go to this U RL:

http:/ /w w w.cisco.com/tac

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Obtaining Ad di tio n al Pub lic a tio ns an d Infor ma tio n

All cu s to m er s , part ners, a n d resel ler s w h o have a va li d Cisco s ervice contra ct have co m p le t e a c cess to the technical support resources on the Cisco TAC website. Some services on the Cisco TAC website require a Cisco.com login ID and password. If you have a valid service contract but do not have a login ID or password, go to this URL to register:

http:/ /t ools.cis co.com /RPF/re gi s ter /r egister.do

If you are a Ci sco .co m regi s tered user, and you canno t re sol ve y our tech n ic al is su es by using the C isco TAC web si te, yo u ca n op en a case online a t t hi s U R L:

http://www.cisco.com/en/US/support/index.html

If you have In ter n et acc es s, we recom mend that you open P 3 an d P4 cases thro ug h th e C isco TAC website so that you can describe the situation in your own words and attach any necessary files.

Cisco TAC Escalation Center

The Cisco TAC Esc alation Center a dd r es s es prior it y leve l 1 o r pr i or it y leve l 2 issues. Thes e classifications are assigned when severe network degradation significantly impacts business operations. When you co n tac t the TAC Escalation Cen t er w ith a P1 or P2 p r ob le m , a C is co TAC engineer automat icall y opens a case .

Preface

To obtain a directory of toll-free Cisco TAC telephone numbers for your country, go to this URL:

http:/ /w w w.cisco .com/wa rp /public/687/D irect or y /D irTAC.shtml

Before c all ing , pl eas e ch eck wit h your ne tw ork oper at ions center to dete rmi ne th e l e v el of Ci sco supp ort services to which your company is entitled: for example, SMARTnet, SMARTnet Onsite, or Network Supporte d A cco u nts ( NS A). When you cal l the cent er, pleas e h ave availab le y our s erv ice agreement number and your product serial number.

Obtaining Additional Publications and Information

Information about Cisco products, technologies, and network solutions is available from various online and prin ted s our ces.

• The Cisco Product Catalog describes the networking products offered by Cisco Systems as well as

ordering and customer support serv ices. Access the Cisco Product Catalog at this U RL :

http://www.cisco.com/en/US/products/products_catalog_links_launch.html

• Cisco Press publishes a wide range of networking publications. Cisco suggests these titles for new

and experience d users: Internetworking Terms and Acronyms Dictionary, Internetworking Technology Handbook, Inte rnetworking Troubleshooting Guide, and the Internetworking Design Guide. For current Cisco Press titles and other information, go to Cisco Press online at this URL:

http://www.ciscopre s s.com

• Packet magazine is th e Cisc o mont hly pe ri odic al tha t provi de s ind ust ry pr ofes sio nals with the late st

information about the field of networking. You can access Packet magazine at this URL:

xii

http://www.cisco.com/en/US/about/ac123/ac114/about_cisco_packet_magazine.html

• iQ Magazine is the Cisco m ont hly pe ri odic al th at prov ide s busin ess leade rs a nd de cisi on m aker s

with the latest information about the networking industry. You can access iQ Magazine at this URL:

http:/ /bu s in es s .cisco.com/p ro d /tr ee.taf% 3 fas s e t_id=44699& pu blic_view = tr u e & k b ns =1.htm l

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Preface

Obtaining Additional Publications and Inform ati on

• Internet Protocol Journal is a quarterly journal published by Cisco Systems for engineering

profess iona l s in v ol v ed in the des ign, dev e l opment , a nd ope ra tion of publ i c and pr i v at e int erne ts a nd intranet s. You can acces s t he Internet Protocol Journal at this URL :

http://www.cisco.com/en/US/about/ac123/ac147/about_cisco_the_internet_prot ocol_journal.html

• Training—Cisco offers world-class networking training, with current offerings in network training

listed at this URL:

http://www.cisco.com/en/US/learning/le31/learning_recommended_tra ining_list.html

To obtain a directory of toll-free Cisco TAC telephone numbers for your country, go to this URL:

http:/ /w w w.cisco .com/wa rp /public/687/D irect or y /D irTAC.shtml

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Obtaining Ad di tio n al Pub lic a tio ns an d Infor ma tio n

Preface

xiv

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Overview

This chapter describes the PA-VXA, PA-VXB, and PA-VXC port adapters and contains the following sections :

• Port Adapter Overview, page 1-1

• Features, page 1-3

• LEDs, page 1 -5

• Cables, Connectors, and Pinouts, page 1-5

• Port A dapter S lo t Locatio ns on the S u pporte d P latform s , page 1 -6

• Identifying Interface Addresses, page 1-9

Port Adapter Overview

CHAPTER

The PA-VXA-1TE1-24+(=) (see Figure 1-1) is a single port T1/E 1 voice p ort ad ap ter with seven active digital signal processors (DSPs). This PA-VXA can support up to 28 simultaneous medium-complexity codec (G.729 a, G.726, or G.711) voice channels—enough ch an ne ls t o sup p ort a s i ng le T1 o r E1 li ne .

Figure 1-1 PA-VXA-1TE1-24+ Port Adapter

PA-VXA-1TE1-24

57412

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Port Adapter Overview

Chapter1 Overview

The PA-VXA-1TE1-30+(=) (see Figure 1-2) is a s in g le po r t T 1/ E1 voi ce po r t ad ap te r w ith e ig ht active DSPs. This PA-VXA can support up to 32 simultaneous medium-complexity codec (G.729a, G.726, or G.711) voi ce ch an ne ls—enough channels to support a single T1 or E1 line.

Figure 1-2 PA-VXA-1TE1-30+ Port Adapter

PA-VXA-1TE1-30

57411

The PA-VXAs are single-width port adapters with one universal port that is configurable for either a T1 or E1 connection. Using a PA-VXA packet voice port adapter, Cisco 7200 series routers, Cisco 7200 VXR rout er s, a nd C isco 75 0 0 se ri es r o u ter s c an become ded i cat ed p acke t vo ic e h ub s o r p ack et voic e gateways that connect to both private branch exchanges (PBXs) and the Publ ic Switched Telephone Network ( PS TN ) . Th e result is that p ac ket voi ce and p ac ket fa x c all s ca n be p lac ed over the wide- ar ea network ( WAN) and se nt th r ou g h the gateway into a traditi on al circuit-swit ched voice infra str ucture.

The PA -VX B and the PA-VXC (see Figure 1-3 and Figure 1-4) are mu lt ich annel packet voice port adapters that allow Cisco 7200 series routers, Cisco 7200 VXR routers, Cisco 7301 routers, Cisco 7401ASR routers, and Cisco 7500 series routers to become dedicated packet voice hubs or packet voice gateways th at co nn ec t t o bo th p r ivate bra nc h exch an ge s ( PBX s ) and the P ubli c S w i tc hed Telephone Network ( P S TN). Wit h this technology, packet voice and packet fax ca lls can be placed over the wide-area network (WAN) and sent through the gateway into the traditional circuit-switched voice infras tr ucture .

Figure 1-3 PA-VXB-2TE1 Port Adapter

0 1

2T1/E1 VXB

32401

Figure 1-4 PA-VXC-2TE1 Port Adapter

0 1

2T1/E1 VXC

24924

The PA-VXB and P A-VXC are single-width port adapters with two universal ports that are configurable for either T1 or E1 connections. The PA-VXB contains 12 high-performance digital signal processors (DSPs) that support up to 48 medium-complexity or 24 high-c om plexity channels of compressed voice. The PA-VXC contains 30 high-performance DSPs that support up to 120 medium-complexity or 60 high-complexity channels of c ompressed voice.

In Voice over IP , the DSP segments the voice signal into frames, which are then coupled in groups of two and store d in voice packets. These voice p ackets are t ra nsp o rt ed u sin g IP in co m p li an ce wi th I TU - T specification H.323. Because Voice over IP is a delay-sensitive application, you must have a well-engineered end-to-end network to use it successfully. Fine-tuning your network to adequate ly

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Chapter1 Overview

Features

support Voice over IP involves a series of protocols and features geared toward quality of service (QoS). Traffic shaping co nsi de r ati on s m u st be taken i nt o acc ou n t t o en sur e t h e r el iab il it y o f th e voi ce connecti on .

The PA-VXA, PA-VXB, and PA-VXC have the following features:

• Universal ports—One interface port (PA-VXA) or two interface ports (PA-VXB and PA-VXC) per

port ada pt er ar e configur ab le as either T 1 ( w it h in teg ra ted C S U/D S U ) o r E1 (with in teg ra te d G.703/G.704 120-ohm interface). Additionally, a port may be configured on a per-DS0 basis for voice termination, time-division multiplexing (TDM) pass-through (cross-connect), or packet data.

• High-density digital signal processor (DSP) technology—Full s up p or t exi s ts f o r low - bi t- r ate voice

comp ressio n (d own to 5. 3 kbps ) on al l T1/E1 port chan nels.

• Multi se rvi ce In te rc hang e (M IX ) sup p ort—Voice channels can be TDM-switched between port

adapter slo ts in th e Ci s co 7200 VX R cha s sis. Th is al lows DSP re sou r ces to be shar ed be tw ee n po rt adapters i n th e s a me ch ass is or fo r po r t-to -p o rt D S 0 cr o ss-c on n ect b etw e en port ada pt er slo t s .

• DS0 drop a nd inse rt —Flexible TDM cross-connect capability between ports and the MIX bus is

available.

• VoIP and VoFR termi nation—Full VoIP and Voice over Fra me Relay (VoFR) g ateway function ality

for mixed enviro nm en ts i s availa bl e.

• Full-featur ed D SP firm war e—Support exists for eight standard-compression algorithms plus echo

cancellation, full dual tone multifrequency (DTMF)/MF tone detection and generation, and dial-p u lse ge ne ratio n .

• Silence suppression—To conserve netw or k b a n dw idth, voi c e a ctivity de t e ct ion (VAD) prevents

sending data when no voice is present. Comfort-noise generation prevents uncomfortable dead silence on the re ceiving end .

• Multiple clocki ng options—Ports can be clocked internally from the network, or the network cl ock

from one port can be sent to the other port on the card or to other cards across the MIX bus in the VXR chassis.

• Flexible signa ling support—Channel - ass o cia ted si gn al in g ( CA S) an d co mm o n ch an ne l signaling

(CCS) support is available for both E 1 and T1 applica tions in H.323 environments.

DSP features:

• Coders/decoders (codecs):

G.711 (a-law/u-law), G.729/G.729.a (with b variant), G.723.1, G.728, G.726

• Fax relay through T.30 support:

V.17 , V.29, V.27

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• Echo cancellation—32 milliseconds meeting G.165

• DTMF/R2/MF/SF/CP tone detection and generation

• Dial-pulse detection and generation

• Energy-based vo ice act ivit y de tection (VAD) and codec- spe cifi c VAD

• Comfort noise generator

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Features

Chapter1 Overview

Signaling supported for H.323 environments:

• H.323 V.2 support

• E1 CAS, T1 CAS (robbed-bit signaling)

• CCS si gn al in g—E1 and T1 PRI (user and network side), Q.SIG

• R2 sign al in g

Port configured as T1 features:

• DS1 100 -oh m inte rfac es with RJ- 45 c onn ec tors

• D4 super frame (SF) and extended super frame (ESF) framing

• Alternate mark inversion (AMI) or binary 8-zero substitution (B8ZS) line encoding

• Full F aci li ty Da ta L i nk (F DL) su ppo rt and FDL perfo rma nce moni tor ing p er ANSI T1. 403 or AT&T

TR 54016

• Selectab le DSX-1 ca bl e l en gt h in in cr em e nt s f r om 0 to 6 55 feet (0 to 7 9. 64 m e ter s )

• Select ab le DS 1 C S U li ne build- ou t—0, –7. 5, –15, or –22.5 dB

• Selectab le DS1 CSU rece iver gain—26 or 36 dB

• DS1 line protection per UL1459/1950, FCC part 68

• Full suppo rt for DSX- 1 Mana gement Inf ormati on Base (MIB ), RFC 1406 , inclu ding a larm dete ction

and repo r ting

• DSX-1 MIB remote access su pported

Port configured as E1 features:

• E1 120-ohm (G.703) with RJ-48C connectors

• Software-configurable E1 national bits

• Binary 3-zero substitution (B3ZS) encoding

• Full support for E1 MIB, RFC 1406, inc luding alarm detection and reporting

Full bit-error-rate testing capabilitie s on each E1/T1:

• Programmable pseudorandom patte rn up to 24 bits in length, including 211-1, 215-1, 220-1,

220-1 QRSS, 233-1, all zeros, all ones, and alternating ones and zeros

• 32-bit-error count registers

Supported loopb acks :

• Line loopback—T1/E1 stream is looped back at the line interface unit (LIU) toward the network.

• Payload loopback—T1/E1 da ta stream is lo op ed b ac k at the fra m er t oward th e n et wo rk.

• Diagnost ic loca l l oo p ba ck —T1/E1 dat a s t r eam is l oo p ed b ack a t t he f ra mer towa rd t h e s y ste m .

1-4

• Remote loopback—T1 stream is looped back at the LIU toward the network upon request from the

far-end through the FDL command.

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Chapter1 Overview

LEDs

As shown in Figure 1-1 and Figure 1-2, the PA-VXAs have three LEDs on the faceplates; a green enabled L E D, a bicolo r alarm LE D, an d a bicolo r po r t st atu s LED. Table 1-1 lis ts the co lors an d functions of the LEDS.

As shown in Figure 1-3 and Figure 1-4, the PA-VXB and PA-VXC port adapte rs have four LEDs on the faceplate: a green enabled LED, a bicolor alarm LED, and two bicolor port status LEDs, one for each port. Table 1-1 lists the colors and functions of t he LEDs.

Table 1-1 PA-VXA, PA-VXB, and PA-VXC Port Adapter LEDs

LED Label Color State Function

EN Green On Indicates the PA-VXA, PA-VXB, and PA-VXC

port a dapt er s ar e power ed u p.

Off Indicates the PA-VXA, PA-VXB, and PA-VXC

port a da pt ers ar e no t re ad y or d isab led.

AL Amber On Indic ates an al arm condit ion e xists on th e remot e

end of one of the T1/E1 ports.

Red On Indi cates an al arm condit ion exis ts locall y on one

of the T1/E1 ports.

Off Ind ica tes no alar ms detected o n eit h er po rt.

Unlabled, 0, or 1

Green On Indica tes th e p o rt is enabled .

Yellow On Indicates the port is in loopback.

Off Indicates that the port is not enabled, the received

signal is bad, or an alarm condition exists.

Cables, C onnectors, and Pinouts

The T1/E1 interface receptacles on the PA-VXA, PA-VXB, and PA-VXC port adapters are for RJ-45 connectors for both T1 (100 ohm) and E1 (120 ohm).

After yo u prope rl y con ne ct a p ort to a li ne , it t ake s a ppr oxim ate ly 3 0 seco nds f or t he Ci sco IOS to re por t that the l in e i s u p.

Each connection supports T1(100-ohm) or E1(120-ohm) interfaces that meet T1.403 and AC CUNET TR62411 s t an da rds. The RJ -45 co n nec ti on d oe s n ot r eq uir e an ex ter n al tr an sceiver. The D S 1 po rt s ar e T1 inte rfaces that u se f o il twist ed - pa ir cables.

Shielde d cables (fo il twisted-pair [ F TP ] ) w ith 1 2 0- o hm imped an ce are re qu ir ed to com pl y w ith C E markin g requ irem ents .

Figure 1-5 shows the PA-VXA, PA-VXB, and PA-VXC port adapter interface cable connector. See the “Conn ectin g Interface Cables ” section on page 3-15 for direct io ns on con n ect in g th e c a b les to a

PA-VXA, PA-VXB, or PA-VXC.

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Port Adapter Slot Locations on the Su pported Platforms

Figure 1-5 PA-VXA, P A-VXB, and P A-VXC Port Adapter Interface Connector

8 7 6 5 4 3 2 1

RJ-45 connector

Table 1-2 lists the signal pinouts and descriptions for the RJ-45 connector.

Table 1-2 RJ-45 Connector Pinouts

Pin Signal

1RX tip 2RX ring 3 No connect io n 4TX tip 5TX ring 6 No connect io n 7 No connect io n 8 No connect io n

Chapter1 Overview

H2936

Port Adapt er Slot Locations on the Supported Platforms

This section discusses port adapter slot locations on the supported platforms. The illustrations that follow sum mar ize slot lo cation co nvention s o n ea ch platfor m:

• Cisco 7200 Series and Cisco 7200 VXR Routers Slot Numbering, page 1-7

• Cisco 7301 Router Slot Numbering, page 1-7

• Cisco 7401ASR Router Slot Numbering, page 1-8

• VIP Slot Numbering, page 1-8

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Port Adapter Slot Locat ions on the Supported Platforms

Cisco7200 Series and Cisco 7200 VXR Rou ters Slot Numbering

Figure 1-6 shows a Cisco 7206 with port adapters installed. In the Cisco 7206, port adapter slot 1 is in

the lowe r left position, and port adapter slot 6 is in the upper right position. (The Cisco 7202 and Cisco 7204 are not shown; however, the PA-VXA, P A-VXB, and PA-VXC port adapters can be installed in any available po r t adapter slo t. S lo t 0 i s alw ay s r eserved for th e Fas t Et he rn et p ort on th e I/ O controller—if present.)

Figure 1-6 Port Adapte r Slots in the Cisco 7206

FAST ETHERNET

RJ45

LINK

MII

FAST ETHERNET INPUT/OUTPUT CONTROLLER

ETHERNET-10BFL

ENABLED

RJ-45

1O PWR

LINK

Cisco 7200

Series

ENABLED

LINK

EJECT

PCMCIA

ETHERNET 10BT

SERIAL-V.35

SLOT 1

FE MII

MII

SLOT 0

TOKEN RING

28329

Port adapter slot 1

Cisco7301 Router Sl ot N um bering

The Cisco 7301 router has one port adapter slot. See Figure 1-7.

Figure 1-7 Port Adpater Slot on the Cisco 7301 Router

Port adapter slot

ENABLED

RX CELLS

RX CARRIER

RX ALARM

Note The Cisco 7301 router is currently supported by the PA-VXB-2TE1+(=)

and the PA-VXC-2TE1(=) port adapters only.

ATM

GIGABIT ETHERNET 0/0

SLOT 1

RJ45 EN

GIGABIT ETHERNET 0/1

LINK

RJ45 EN

TX RX

GBIC

LINK

TX RX

GBIC

CISCO 7400

SERIES

CISCO 7411

Port adapter slot 5

Port adapter slot 3

GIGABIT ETHERNET 0/2

RJ45 EN

LINK

AUX

CONSOLE

TX RX

GBIC

ALARM COMPACT FLASH

STATUS

100-240V, 2A, 50/60 Hz 24V

9A, 48 - 60V

Port adapter slot 0

Port adapter slot 6

Port adapter slot 4

Port adapter slot 2

84988

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Port Adapter Slot Locations on the Su pported Platforms

Cisco7401ASR Rout e r Sl ot Numbering

Figure 1-8 shows t he fr ont v ie w of t he Ci sco 7401ASR route r wit h a port ad apte r i nst all ed. Ther e is o nl y

one po r t ada pt er s lo t in a Ci s co 740 1A S R router an d it is port adapt er slot 1.

Figure 1-8 Cisco 7401ASR Router with a Port Adapter Installed

Chapter1 Overview

ENABLED

RX CELLS

RX CARRIER

RX ALARM

Note The Cisco 7401ASR router is currently supported by the PA-VXB-2TE1+(=)

and the PA-VXC-2TE1 +(=) p o rt ad ap te rs on ly.

VIP Slo t Num bering

Figure 1-9 shows a partial view of a VIP motherboard with installed port adapters that would be used

with a Cisco 7500 series router. With the motherboard oriented as shown in Fi gure 1-9, the left port adapter is in port adapter slot 0, and the right port adapter is in port adapter slot 1. The slots are always numbered 0 and 1.

Figure 1-9 VIP Motherboard with Two Port Adapters Installed—Horizontal Orientation

ENHANCED ATM

57680

1-8

Port adapter slot 0

Port adapter slot 1

29328

Port adapter handles not shown

Note In the Cisco 7507, and Cisco 7513 chassis, the VIP motherboard is installed vertically. In the Cisco

7505 ch assis , th e VI P motherb o ar d is i nst alled hori zo nt all y as sh ow n i n Figure 1-10.

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Identifying Inter fa ce Addr esses

Interface processor slots are numbered as sh own in Figure 1-10.

Figure 1-10 Interface Slot Numbers—Cisco 7505 Shown

VIP in interface processor slot 3

NORMAL

EJECT

SLOT 1

SLOT 0

CPU HALT

RESET

Identifying Interface Addresses

This secti on desc ri bes how to id enti fy inter fac e addr esse s for th e PA-VXA, PA-VXB, and PA-VXC port adapters i n sup p or t ed pl at for ms . I n terfa ce addresse s sp eci fy t he ac tu al physical l oc ati on o f each interface on a r ou te r or s w i tch .

Interfaces on the PA-VXA, PA-VXB, and PA-VXC port adapters installed in a router maintain the same addres s regard less of w he t h er other p or t adapt e r s ar e insta lle d or rem oved. However, wh e n yo u m ove a port adapter to a differe nt slo t, the fir st n u m b er in the interface ad dr ess ch an ges to re f le ct the new port adapt e r s l ot numb e r.

ROUTE SWITCH PROCESSOR

CONSOLE

29619

Slot 3 Slot 2 Slot 1

Slot 0

Interface processor slots

Note Interface ports are numbered from left to right starting with 0.

Table 1-3 exp la in s h ow to id en ti fy i nt er face addresses .

Table 1-3 Identifying Interface Addresses

Platform Interface Address Format Numbers Syntax

Cisco 7200 series and Cisco 7200 VXR routers

Port-adapt er -slot -number /inte rface -port- number Port ad apter sl ot—1 through

6 (depends on the number of slots in the router)

1/0

Inte rf a ce por t —0 or 1

Cisco 7301 routers

Port-adapter-slot-number/interfa ce-port-number Port adapter slot—always 1

1/0

Inte rf a ce por t —0 or 1

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Identifyin g In te rfa ce A ddre sse s

Table 1-3 Identifying Interface Addresses (continued)

Platform Interface Address Format Numbers Syntax

Cisco 7401ASR routers

Port-adapter-slot-number/interfa ce-port-number Port adapter slot—always 1

Inte rf a ce por t —0 or 1

VIP in Cisco 7500 series routers

Interface-processor-slot-number/port-adapter-slotnumber/interface-port-number

Interface processor slot—0 through 12 (depends on the number of slots in the router)

Port adapter sl ot—a lways 0 or 1

Inte rf a ce por t —0 or 1

1. Port a dapter slot 0 is reserved for the Fast Ethernet port on the I/O controller (if present).

2. The Cisco 7301 rout er is cur r en tl y s upp or ted by the PA-V X B-2 T E1+(=) and t he PA-VXC-2T E 1( =) por t a dapters onl y.

3. The Cisco 7401 ASR r outer is cur r en tly su ppo rted by the P A- V X B-2 T E1+( = ) a nd the PA-V XC- 2TE 1 +( =) po rt a da pt er s onl y .

1/0

3/0/0

Cisco7200 Series Routers Interface Addresses

This section describes how to id entify the interface addresses used for the PA-VXA, PA-VXB, and PA-VXC port adapters in Cisco 7200 series and Cisco 7200 VXR routers. The interface address is compose d of a tw o-p a rt n u m b er in th e fo r mat port-adapter-slot-number/interface-port-number. See

Table 1-3 for the interface address format.

In Cisco 72 0 0 ser ies and Cis co 7200 VXR r o ut ers , p o rt ad ap ter slots are numb er ed fr om the lowe r left to the upper right, beginning with port adapter slot 1 and continuing through port adapter slot 2 for the Cisco 7202, slot 4 for the Cisco 7204 and Cisco 7204VXR, and slot 6 for the Cisco 7206 and Cisco 7206VXR. (Port adapter slot 0 is reserve d for the optional Fast Ethernet port on the I/O controller—if present.)

Cisco7301 Route r I nt erface Addresses

This section describes how to identify the interface addresses used for the the PA-VXB-2TE1+(=) or the PA-VXC-2TE1(=) in a Cisc o 7301 router . In th e Cisc o 7301 router , sl ot 1 is the p ort ada pter slo t yo u u se for any of these two port adapters. (See Figure 1-7.) The interface addres s is compo sed of a two-par t number i n th e f o rma t port-adapter-slot-number/interface-port-number. See Table 1-3 for the interface address format .

Note The Cisco 7301 router is currently supported by the PA-VXB-2TE1+(=)

and the PA-VXC-2TE1(=) port adapters only.

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Cisco7401ASR Router Interface Addresses

This section describes how to identify the interface addresses used for the the PA-VXB-2TE1+(=) or the PA-VXC-2TE1+(=) in a Ci sco 7401ASR router. In the Cisco 7401ASR router , s lot 1 is the port a dapter slot yo u us e for any of these t wo port adap te r s . (S ee Figure 1-8.) The in te rface address is com po sed of a two-part number in the format port-adapter-slot-number/interface-port-number. See Table 1-3 for the interface ad dres s format .

Note The Cisco 7401ASR router is currently supported by the PA-VXB-2TE1+(=)

and the PA-VXC-2TE1 +(=) p o rt ad ap te rs on ly.

Cisco 7500 S eri es Routers In terf ace Addresses

This section describes how to id entify the interface addresses used for the PA-VXA, PA-VXB, and PA-VXC on a VIP in Cisco 7500 series routers.

Identifying Inter fa ce Addr esses

Note Although the processor slots in the seven-slot Cisco 7507 and the thirteen-slot Cisco 7513 and

Cisco 7576 are vertically oriented and those in the five-slot Cisco 7505 are horizontally oriented, all Cisco 7500 series routers use the same method for slot and port numbering.

The interfac e address i s co m p ose d of a three-p ar t n u mb er in t he fo rm at interface-processor-slot-number/port-adapter-slot-numbe r/interface-port-number. See Table 1-3 for the inter fa ce a dd r ess f o rm at.

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Identifyin g In te rfa ce A ddre sse s

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Preparing for Installation

This chapter describes the general equipment, safety, and site preparation requirements for installing the PA - VX A, PA-VXB, and PA-VXC port adapter s. This chap ter cont ain s t he f ol lowin g sections:

• Required Tools and Equipment, page 2-1

• Software and Hardware Requirements, page 2-2

• Checking Hardwa re and S of t wa r e Comp a t ib ility, page 2-3

• Safety G u id el in es , page 2-3

• FCC Class A Compliance, page 2-6

Required Tools and Equipment

You need the follo wing to ols and parts to in stall a po rt adapt er . If you ne ed addit ional e quipme nt, cont act a servic e r ep r esen ta tive f o r o r de r ing i n fo r mat ion.

CHAPTER

• PA-VXA-1TE1-24+(=), PA-VXA-1TE1-30+(=), PA-VXB-2TE1(=), PA-VXB-2TE1+(=),

PA-VXC-2TE1(=), or PA-VXC-2TE1+(=) port adapter

• Shielded cables (foil twisted-pair [FTP]) with 120-ohm impedance (for E1 conne ctions only)

Note To comply with Conducted Suscep t ib ili ty of the C E marking r eq u ir em e nt s , sh ielded

120-ohm (screened) cables should be used with this board.

• Numbe r 2 Phillips s cr ewd river

• Your own electrostatic discharge (ESD)-prevention equipment or the disposable grounding wrist

strap included with all upgrade kits, field-replaceable units (FRUs), and spares

• Antistatic mat

• Antistatic container

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Chapt er 2 Preparing fo r In s t al la tion

Software and Hardware Requirements

Software and Hardware Requi remen ts

Table 2-1 lists the recommended minimum Cisco IOS software release required to use the PA-VXA,

PA-VXB, and PA-VXC port adapters in the supported router platforms.

Table 2-1 PA-VXA, PA-VXB, and PA-VXC Software and Hardware Requirements

Port Adapters on Sup porte d Platfo rms Recommended Minimum C isco IOS Rele ase PA-VXA-1TE1-24+

• Cisco 7200 series and Ci sco 7200 VXR

routers

• Cisco 7500 se ries routers w ith V IP

PA-VXA-1TE1-30+

• Cisco 7200 series and Ci sco 7200 VXR

routers

• Cisco 7500 se ries routers w ith V IP

PA-VXB-2TE1

• Cisco 7200 series and Ci sco 7200 VXR

routers

PA-VXB-2TE1+

• Cisco 7200 series and Ci sco 7200 VXR

routers

• Cisco 7301 routers Cisco IOS Relea se 12. 2( 11) YZ or a lat er rele a se of Ci sco IOS Release 12.2 YZ

• Cisco 7401ASR routers Cisco IOS Release 12.2(2)DD or a later release of Cisco IOS Release 12.2 DD

• Cisco 7500 se ries routers w ith V IP

PA-VXC-2TE1

• Cisco 7200 series and Ci sco 7200 VXR

routers

• Cisco 7301 routers Cisco IOS Relea se 12. 2( 11) YZ or a lat er rele a se of Ci sco IOS Release 12.2 YZ

PA-VXC-2TE1+

• Cisco 7200 series and Ci sco 7200 VXR

routers

• Cisco 7401ASR routers Cisco IOS Release 12.2(2)DD or a later release of Cisco IOS Release 12.2 DD

Cisco IOS Release 12.2(4)T or a later release of Cisco IOS Release 12.2 T Cisco IOS Release 12.2 (4 ) B o r a lat er r ele as e of C isco IOS R elease 1 2. 2 B

1, 2

Cisco IOS Release 12.2(4)T or a later release of Cisco IOS Release 12.2 T

Cisco IOS Release 12.2(4)T or a later release of Cisco IOS Release 12.2 T Cisco IOS Release 12.2 (4 ) B o r a lat er r ele as e of C isco IOS R elease 1 2. 2 B

1, 2

Cisco IOS Release 12.2(4)T or a later release of Cisco IOS Release 12.2 T

Cisco IOS Release 12.1(3)T or an earlier release of Cisco IOS Release 12.1 T

Cisco IOS Release 12.1(3)T or a later release of Cisco IOS Release 12.1 T Cisco IOS Release 12.2(1) or a later release of Cisco IOS Release 12.2 Cisco IOS Release 12.2(1)T or a later release of Cisco IOS Release 12.2 T Cisco IOS Release 12.2 (4 ) B o r a lat er r ele as e of C isco IOS R elease 1 2. 2 B

Cisco IOS Release 12.2 (4 ) B o r a lat er r ele as e of C isco IOS R elease 1 2. 2 B

1, 2

Cisco IOS Release 12.1(3)T or an earlier release of Cisco IOS Release 12.1 T

Cisco IOS Release 12.2 (4 ) B o r a lat er r ele as e of C isco IOS R elease 1 2. 2 B

2-2

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Chapter 2 Preparing for Installation

Chec ki n g Hardwar e an d S o ftw are Compa t ib ility

Table 2-1 PA-VXA, PA-VXB, and PA-VXC Software and Hardware Requirements (continued)

Port Adapters on Sup porte d Platfo rms Recommended Minimum C isco IOS Rele ase

• Cisco 7500 se ries routers w ith V IP

1. The VIP2 and V IP4 s upp or t the PA-VXB and PA- V XC .

2. The VIP6 supp ort s th e PA - VXA and the PA-VX B .

Note Voice over Frame Relay is not supported on the Cisco 7500 series router in Cisco IOS Release

12.1(3)T.

Note The PA-VXB and PA-VXC port adapters are not supported in systems with an NPE-100 installed.

1, 2

Checking Hardware and Software Compati bili ty

To check the minimum software requirements of Cisco IOS software with the hardware installed on your router, Cisco maintains th e Software Advisor tool on Cisco.com. This tool does not verify whether modules w it hi n a sy s te m ar e compati bl e, but it d oes prov id e t h e m i ni mu m I O S r eq ui re m en ts fo r individual hardware modules or components.

Note Access to this tool is limited to users with Cisco.com login accounts.

T o access Software Advisor, click Login at Cisco.com and go to Tec hnical Support Help—Cisc o TAC: Tool Index: Software Advisor. You can also access the tool by pointing your browser directly to

http:/ /w w w.cisco.com/cg i- bin/su p po r t/Comp Nav /I nd ex.pl. Choose a product family or enter a specific product number to search for the minimum supported

software release needed for your hardware.

Safety G u idelines

This se cti on provi d es s a fe ty guidelin es that you s h ou ld f o llow when wo r ki ng w ith any equipment that connects to electrical power or telephone wiring.

Safety Warnings

Safety warnings appear throughout this publication in procedures that, if performed incorrectly, might harm you . A war n in g sym bo l pr ec ed es ea ch wa r ni ng s t ate m en t.

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Safety Guidelines

Chapt er 2 Preparing fo r In s t al la tion

Warning

Waarschuwing

Varoitus

Attention

This warning symbol means danger. You are in a situation that could cause bodily injury. Before you work on any equipment, be aware of the hazards involved with electrical circui try and be familiar with standard practices for preventing accidents. To see translations of the warnings that appear in this publication, refer to the Regulatory Compliance and Safety Information document that accompanied this device.

Dit waarschuwingssymbool betekent gevaar. U verkeert in een situatie die lichamelijk letsel kan veroorzaken. Voordat u aan enige apparatuur gaat werken, dient u zich bewust te zijn van de bij elektrische schakelingen betrokken risico's en dient u op de hoogte te zijn van standaard maatregelen om ongelukken te voorkomen. Voor vertalingen van de waarschuwingen die in deze publicatie verschijnen, kunt u het document Regulatory Compliance and Safety Information (Informatie over naleving van veiligheids- en andere v oorschriften) raadplegen dat bij dit toestel is ingesloten.

Tämä varoitusmerkki merkitsee vaaraa. Olet tilanteessa, joka voi johtaa ruumiinvammaan. Ennen kuin työskentelet minkään laitteiston parissa, ota selvää sähkökytkentöihin liittyvistä vaaroista ja tavanomaisista onnettomuuksien ehkäisykeinoista. Tässä julkaisussa esiintyvien varoitusten käännökset löydät laitteen mukana olevasta Regulatory Compliance and Safety Information

-kirjasesta (määräysten noudattaminen ja tietoa turvallisuudesta).

Ce symbole d'avertissement indique un danger. Vous vous trouvez dans une situation pouv ant causer des blessures ou des dommages corporels. Avant de travailler sur un équipement, soyez conscient des dangers posés par les ci rcuits él ectriques e t fam iliarisez -vous av ec les procédures couramment utilisées pour éviter les accidents. Pour prendre connaissance des traductions d’avertissements figurant dans cette publication, consultez le document Regulatory Compliance and Safety Information (Conformité aux règlements et consignes de sécurité) qui accompagne cet appareil.

Warnung

Avvertenza

Advarsel

Dieses Warnsymbol bedeutet Gefahr. Sie bef inden sich in ei ner S ituation, di e zu einer Körperverletzung führen könnte. Bevor Sie mit der Arbeit an irgendeinem Gerät beginnen, seien Sie sich der mit elektrischen Stromkreisen verbundenen Gefahren und der Standardpraktiken zur Vermeidung von Unfällen bewußt. Übersetzungen der in dieser Veröffentlichung enthaltenen Warnhinweise finden Sie im Dokument Regulatory Compliance and Safety Information (Informationen zu behördlichen Vorschriften und Sicherheit), das zusammen mit diesem Gerät geliefert wurde.

Questo simbolo di avvertenza indica un pericolo. La situazione potrebbe causare infortuni alle persone. Prima di lavorare su qualsiasi apparecchiatura, occorre conoscere i pericoli relati vi ai circuiti elettrici ed essere al corrente delle pratiche standard per la prevenzione di inci denti. L a traduzione delle avvertenze riportate in questa pubblicazione si trova nel documento Regulatory Compliance and Safety Information (Conformità alle norme e informazioni sulla sicurezza) che accompagna questo dispositivo.

Dette varselsymbolet betyr fare. Du befinner deg i en situasjon som kan føre til personskade. Før du utfører arbeid på utstyr, må du vare oppmerksom på de faremomentene som elektriske kretser innebærer, samt gjøre deg kjent med vanlig praksis når det gjelder å unngå ul ykker. Hvis du vil se oversettelser av de advarslene som finnes i denne pu blikasjonen, kan du se i dokumentet Regulatory Compliance and Safety Information (Overholdelse av forskrifter og sikkerhetsinformasjon) som ble levert med denne enheten.

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Safety Gu idelin e s

Aviso

¡Advertencia!

Varning!

Este símbolo de aviso indica perigo. Encontra-se numa situação que lhe poderá causar danos físicos. Antes de começar a t rabalhar com qualquer equipamento, familiarize-se com os perigos relacionados com circuitos eléctricos, e com quaisquer práticas comuns que possam prevenir possíveis acidentes. Para ver as traduções dos avisos que constam desta publicação, consulte o documento Regulatory Compliance and Safety Information ( Informação de Segurança e Disposições Reguladoras) que acompanha este dispositivo.

Este símbolo de aviso significa peligro. Existe riesgo para su integridad física. Antes de manipular cualquier equipo, considerar los riesgos que entraña la corriente eléctrica y familiarizarse con los procedimientos estándar de prevención de accidentes. Para ver una traducción de las advertencias que aparecen en esta publicación, consultar el documento titulado Regulatory Compliance and Safety Information (Información sobre seguridad y conformidad con las disposiciones reglamentarias) que se acompaña con este dispositivo.

Denna varningssymbol signalerar fara. Du befinner dig i en situation som kan l eda till personskada. Innan du utför arbete på någon utrustning måste du vara medveten om farorna med elkretsar och känna till vanligt förfarande för att f örebygga skador. Se förklaringar av de varningar som förkom mer i denna publikation i dokumentet Regulatory Compliance and Safety Information (Efterrättelse av föreskrifter och säkerhetsinformation), vilket medföljer denna anordning.

Electric al Equipment Guidelines

Follow these basic guidelines when working with any electrical equipment:

• Before b egi nnin g any p r oc ed ur es re qu ir in g ac ces s to the ch ass is interior, locat e t he emergency

power-off switch for the room in which you are working.

• Disconne ct all power an d ex te rn al cab l es b ef ore moving a c ha s sis.

• Do not work a lone when potentia lly h a z ar do us cond i tio ns exist.

• Never assum e t hat p ower ha s b een d isco n ne cted from a ci rc ui t; alw ays check.

• Do not perform any action that creates a potential hazard to people or makes the equipment unsafe;

carefully examine your work area for possible hazards such as moist floors, ungrounded power extension cables, and missing safety grounds.

Telephone Wiring Guidel i nes

Use the f ollowing guidelin es wh en wor ki ng wi th an y equi pmen t t hat i s co nnec ted t o t ele pho ne wiri ng or to other network cabling:

• Never install telephone wiring during a lightning storm.

• Never instal l teleph o ne ja cks in wet locations unl e ss t h e j ack is specifi cal ly d e si gn ed for wet

location s .

• Never touch uninsulated telephone wires or terminals unless the telephone line has been

disconnected at the network interface.

• Use caution when installing or modifying telephone line s.

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FCC Class A Complia nce

Preventi ng Electrostatic Disc harge Damage

Electrostatic discharge (ESD) damage, which can occur when electronic cards or components are improper l y h an d led , re s ults i n co mplete or in te rmittent f ai lu re s. P o rt ad ap te r s an d pro ces so r m o d ul es comprise printed circuit boards that are fixed in metal carriers. Electromagnetic interference (EMI) shielding and connectors are integral components of the carrier. Although the metal carrier helps to prote ct the b oa rd from ESD , us e a preven tive antistatic s t r a p du ring handli ng .

Following are gu id el in es f o r pr eventin g ES D d amage:

• Always use an ESD w r ist o r an kl e st ra p an d e nsu re t ha t i t m ake s g oo d ski n co ntact .

• Connect the equipment end of the strap to an unfinished chassis surface.

• When in sta lling a co mp o nen t , u s e a ny availab le eje ctor levers or cap tive i n s tal lat io n scr ews t o

properly seat t he bus connect o rs i n th e b ackplane o r mid p lan e. Th ese devices prevent acc id en tal removal, provid e proper gr o un din g f o r th e sy s t em, and hel p to en su re th at bu s co nnectors ar e properly seat ed .

• When re mov in g a c omp o ne nt , u s e any available ejector l evers o r captive insta llation scr ews to

release t h e bus co nnectors f rom t he b ack p lan e or m i dp l an e.

• Handle carriers by available handles or edges only; avoid touc hing the printed circuit boards or

connecto rs .

Chapt er 2 Preparing fo r In s t al la tion

• Place a removed board component-side-up on an antistatic surface or in a static shielding container.

If you pl an to r et ur n th e co m pon en t t o th e f act or y, imme diately plac e i t i n a s t ati c s h i eld in g container.

• Avoid contact between the printed circuit boards and clothing. The wrist strap only protects

componen ts from ESD volt ag es o n th e body; ES D voltages on clo t hi ng c an s ti ll cau se damage.

• Never atte mp t t o remove t h e p ri n ted ci r cu it board f rom t he metal ca rr ie r.

Caution For safety, periodically check the resistance value of the antistatic strap. The measurement should be

between 1 and 10 megohms (Mohms).

FCC Class A Compliance

This equi pment ha s been tested a nd foun d to comp ly with th e limi ts for a Cl ass A digital devi ce, pursu ant to part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful interferen ce when th e e qu ip ment is oper at ed in a commer c ial enviro nment. Thi s eq u ip men t ge nerates, uses, and can radiate radio-frequency energy and, if not installed and used in accordance with the instructi on manual, may ca use harmfu l in terference to rad io co mmunications. Op er at io n o f t h is equipm en t i n a resi de nt ial area is li kely to cau se ha rmful in ter f er en ce, in wh ich case us e rs will b e required to correct the interference at their own expense.

You can deter mi ne wheth er yo ur eq u ip men t is causi ng interferen ce by turnin g i t o ff. If th e in t er fe re nc e stops, it was probably caused by the Cisco equipment or one of its peripheral devices. If the equipment causes interference to radio or television reception, try to correct the interference by using one or more of the f ollowing mea sur e s:

2-6

• Turn the television or radio antenna until the interference stops.

• Move the equipment to one side or the othe r of the television or radio.

• Move the equipment farther away from the television or radio.

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Chapter 2 Preparing for Installation

• Plug the equipment into an outlet that is on a different circuit from the television or radio. (That is,

make certain the equipment and the television or radio are on circuits controlled by different circuit breakers or fuses.)

Note The PA-VXA, PA-VXB, and PA-VXC port adapters have been designed to meet these requirements.

Modificat io ns to this prod uct tha t ar e no t author ized by Cis c o S y s te m s, I n c., co uld void th e var io u s approvals and negate yo u r a u th or ity to o perate the product.

FCC Class A Compliance

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FCC Class A Complia nce

Chapt er 2 Preparing fo r In s t al la tion

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CHAPTER

Removing and Installing Port Adapters

This chapter describes how to remove the PA-VXA, PA-VXB, and PA-VXC port adapters from supported platforms and also how to install a new or replacement port adapter. This chapter contains the followi ng sec t ions:

• Handling Port Adapters, page 3-1

• Online Insertion and Removal, page 3-3

• Warnings and Cautions, page 3-4

• Port Adapt er Removal a n d Installation , page 3- 9

• Conne cting Inter fa ce Ca bles , page 3- 15

Each por t a da pt er ci rc ui t b o ar d is mounted t o a m e tal carrier an d is sensitive to e lec tr o stat ic discharg e (ESD ) da mag e.

Note When a port a dapte r sl ot is not in us e, a b lank p ort adap ter m ust fi ll th e em pty s lot to al lo w the ro uter

or switch t o co nf o rm to el ectromag net ic interf eren ce (EMI ) e m iss i o ns r e qu ir ements and to allow proper air f low ac ro ss the port adapter s. If y o u p la n to in s t all a n ew po r t a da pt er in a s lo t t h at is n o t in use , you mu s t first r e move the blank po rt adap ter.

Caution When powering off the router, wait a minimum of 30 seconds before powering it on again.

Handling Port Adapters

Caution Always handle the port adapter by the carrier edges and handle; never touch the port adapter

componen ts or conn ect or p in s. ( See Figure 3-1.)

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Handling Port Adapters

Caution Always ha ndle th e VIP b y the ca rrier e dges and h andl e; ne ver to uch the VIP compon ents o r conn ector

Chapter3 Removing and Installing Port Adapters

Figure 3-1 Handling a Port Adapter

Metal carrier

Printed circuit board

H6420

pins. ( S ee Figure 3-2.)

Figure 3-2 Handling the VIP—Horizontal Orientation Shown

3-2

H4714

Captive installation screws

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Chapter3 Removing and Installing Port Adapters

Online Insertion and Removal

Several platforms support online insertion and removal (OIR) of port adapters; therefore, you do not have to po wer do wn ro uters whe n remo ving an d repla cing a PA-VXA, PA-VXB, or PA-VXC port adapter in Cisco 7200 series routers, Cisco 7 200 VXR routers, Cisco 7301 routers, and Cisco 7401ASR routers.

Note The Cisco 7301 router is currently supported by the PA-VXB-2TE1+(=)

and the PA-VXC-2TE1(=) port adapters only.

Note The Cisco 7401ASR router is currently supported by the PA-VXB-2TE1+(=)

and the PA-VXC-2TE1 +(=) p o rt ad ap te rs on ly.

Although the Cisco 7500 series routers support online insertion and removal of the VIP motherboard, individual port adapters cannot be inserted or removed from a VIP without first removing it from the chassis. To insta ll a n ew po rt ad ap t er in a Cisco 7500 series r outer, you must firs t in stal l it on a V IP motherbo ar d .

Online Insertion and Removal

Caution To prevent system problems, do not remove the PA-VXA, PA-VXB, or PA-VXC from the VIP

motherbo ar d . To install o r re pl ace th ese port ad apt ers , fi rst rem ove th e V IP f r o m its inter fac e processor slot.

It is wise to gracefully shut down the system before removing a port adapter that has active traffic moving through it. Removing a module while traffic is flowing through the ports can cause system disruption. Once the module is inserted, the ports can be brought back up.

Note As you disengage the module from the router or switc h, online insertion and removal (OIR)

administ r atively shuts d ow n a ll active inte rfaces in t he m o du le.

OIR allows you to install and replace modules while the router is operating; you do not need to notify the soft ware or sh ut d own t he syst em po w er , alt hou gh you s houl d not run traf fic through the modul e you are removi ng w h il e i t i s b ein g r emove d. O IR i s a metho d th at is se am l es s t o en d u s ers o n th e ne tw or k , maintains all routing information, and preserves sessions.

The following is a functional description of OIR for background information only; for specific procedure s for installing and replacing a module in a supported platform, refer to the “Port Adapter

Removal and In sta llati on” section on page 3-9.

Each modul e ha s a bus conn ect or th at co n ne cts it to the rout er. The conne cto r has a s et of tier e d pin s in three lengths that send specific signals to the system as they make contact with the module. The system assesse s the signals it rece ives and the orde r in which it recei ves them to determine if a module is being removed from or in trod u ced t o t h e s y ste m . Fr o m th es e s i gn al s, th e system de ter m i ne s w h eth er t o reinitial iz e a new in te rface or to shu t down a disconn ect ed in terface.

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Specifically, when you insert a module, the longest pins make contact with the module first, and the shortest pins make contact last. The system recognizes the signals and the sequence in which it receives them.

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Warnings and Cautions

When you remove or insert a module, the pins send signals to noti fy the system of changes. The router then perfoms the following procedure:

1. Rapidly scan s t he s y stem for c onfig urat io n ch an ge s .

2. Initializes n ewl y in ser ted p o rt ad ap te rs or admi n istr at ively sh ut s d own any vaca nt i nt er fac es.

3. Brings all p r evio usly confi gu r ed in terfaces o n the modul e b ac k to thei r pr evio u s ly in stalled s ta te.

Any newly in s erted i nt er fac e i s p ut in th e ad m in ist ra tively sh u td own s ta te, as i f it wa s pr esent (but not configured) at boot t ime . I f a simi la r m odule ty pe i s r ei nse rte d into a sl ot, i ts po rts are c onf i gur ed and brought online up to the port count of the originally installed module of that type.

Note Before y ou begin installat ion, read Chapter 2, “Preparing for Install ation,” for a lis t of parts a nd tool s

requi re d f o r in s tallati on .

Warnings and Cautions

Observe the following warnings and cautions when installing or removing port adapters.

Chapter3 Removing and Installing Port Adapters

Caution Do not slide a port adapter or VIP motherboard all the way into the slot until you have connected all

required cables. Trying to do so disrupts normal operation of the router or switc h.

Note If a port adapter lever or other retaining mechanism does not move to the locked position, the port

adapter or VIP motherboard it is installed on is not completely seated in the midplane or backplane. Carefully pull the card halfway out of the slot, reinsert it, and move the port adapter lever or other mechanism to the locked position.

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Chapter3 Removing and Installing Port Adapters

Chassis Warning—Disconnecting Tel ephone-Network Cables

Warnings and Cautions

Warning

Waarschuwing

Varoitus

Attention

Warnung

Avvertenza

Advarsel

Aviso

Before opening the chassis, disconnect the telephone-network cables to avoid contact with telephone-network voltages

Voordat u het frame opent, dient u de verbinding met het telefoonnetwerk te verbreken door de kabels te ontkoppelen om zo contact met telefoonnetwerk-spanningen te vermijden.

Vältä joutumista kosketuksiin puhelinverkostojännitteiden kanssa irrottamalla puhelinverkoston kaapelit ennen asennuspohjan aukaisemista.

Avant d'ouvrir le châssis, débrancher les câbles du réseau téléphonique afin d'éviter tout contact avec les tensions d'alimentation du réseau téléphonique.

Bevor Sie das Chassis öffnen, ziehen Sie die Telefonnetzkabel aus der Verbindung, um Kontakt mit Telefonnetzspannungen zu vermeiden.

Prima di aprire il telaio, scollegare i cavi della rete telefonica per evitare di entrare in contatto con la tensione di rete.

Før kabinettet åpnes, skal kablene for telenettet kobles fra for å unngå å komme i kontakt med spenningen i telenettet.

Antes de abrir o chassis, desligue os cabos da rede telefónica para evitar contacto com a tensão da respectiva rede.

¡Advertencia!

Varning!

Antes de abrir el chasis, desconectar el cableado dirigido a la red tel efónica para evi tar contacto con voltajes de la propia red.

Koppla loss ledningarna till telefonnätet innan du öppnar chassit så att kontakten med telefonnätsspänningen bryts.

Lightning Activity Warning

Warning

Waarschuwing

Varoitus

Attention

Do not work on the system or connect or disconnect cables during periods of lightning activity.

Tijdens onweer dat gepaard gaat met bliksem, dient u niet aan het sy steem te werken of kabels aan te sluiten of te ontkoppelen.

Älä työskentele järjestelmän parissa äläkä yhdistä tai irrota kaapeleita ukkosilmalla.

Ne pas travailler sur le système ni brancher ou débrancher l es câbles pendant un orage.

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Warnung

Arbeiten Sie nicht am System und schließen Sie keine Kabel an bzw. trennen Sie kei ne ab, wenn es gewittert.

Avvertenza

Advarsel

Aviso

¡Advertencia!

Non lavorare sul sistema o collegare oppure scollegare i cavi durante un temporale con fulmini.

Utfør aldri arbe id på systemet, eller koble kabler til eller fra systemet når det tordner eller lyner.

Não trabalhe no sistema ou ligue e desligue cabos durante períodos de mau tempo (t rovoada).

No operar el sistema ni conectar o desconectar cables durante el transcurso de descargas eléctricas en la atmósfera.

Varning!

Vid åska skall du aldrig utföra arbete på systemet eller ansluta eller koppla loss kablar.

Service Personnel Warnin g

Warning

This equipment is to be installed and maintained by service personnel only as defined by AS/NZS 3260 Clause 1.2.14.3 Service Personnel.

Waarschuwing

Varoitus

Attention

Warnung

Avvertenza

Advarsel

Aviso

Deze apparatuur mag slechts geïnstalleerd en onderhouden worden door servicepersoneel conform de definitie van AS/NZS 3260 Clausule 1.2.14.3 Service Personnel.

Tämän laitteen saa asentaa tai huoltaa ainoastaan Australiassa ja Uudessa Seelannissa sovellettavan AS/NZS 3260 -standardin kohdan 1.2.14.3 Service Personnel määrittelemä huoltohenkilöstö.

Cet équipement ne doit être installé et entretenu que par du personnel d’entretien comme défini par la réglementation AS/NZS 3260 Clause 1.2.14.3 Service Personnel.

Dieses Gerät darf nur von Wartungspersonal gemäß AS /NZS-Definition 3260, Paragraph 1.2.14.3, "Service Personnel", installiert und gewartet werden.

Questo apparecchio deve essere installato e mantenuto in efficienza esclusivamente da personale tecnico che soddisfi i requisiti specificati nella sezione 1.2.14.3 sul ‘Service Personnel’ contenuta nelle norme AS/NZS 3260.

Installasjon og vedlikehold av dette utstyret skal kun foretas av vedlikeholdspersonell som definert i AS/NZS 3260, klausul 1.2.14.3 Service Personnel.

Este equipamento deverá ser instalado e reparado apenas por pessoal de manutenção qualificado, conforme estipulado em AS/NZS 3260 Cláusula 1.2.14.3 Service Personnel.

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Warnings and Cautions

¡Advertencia!

Este equipo se debe instalar y mantener solamente por personal de servicio, según defi nido por AS/NZS 3260 Cláusula 1.2.14.3 Service Personnel.

Varning!

Installation och underhåll av denna utrustning får endast utföras av servicepersonal enligt definition i AS/NZS 3260 klausul 1.2.14.3 Service Personnel.

No. 26 AWG Warn ing

Warning

Waarschuwing

Varoitus

Attention

Warnung

To reduce the risk of fire, use only No. 26 AWG or larger telecommunication line cord.

Om brandgevaar te reduceren, dient slechts telecommunicatielijnsnoer nr. 26 AWG of groter gebruikt te worden.

Tul ipalovaaran vähentämiseksi käytä ai noastaan nro 26 AWG- tai paksumpaa tietoliikennejohdinta.

Pour réduire le risque d’incendie, n’utiliser que des cordons de lignes de télécommunications de type AWG nº 26 ou plus larges.

Zur Reduzierung der Feuergefahr eine Fernmeldeleitungsschnur der Größe 26 AWG oder größer verwenden.

Avvertenza

Advarsel

Aviso

¡Advertencia!

Varning!

Per ridurre il rischio di incendio, usare solo un cavo per l inea di tel ecomunicazioni di sezione 0,12 mm

(26 AWG) o maggiore.

Bruk kun AWG nr. 26 eller t elekommunikasjonsledninger med større dimensjon for å redusere faren for brann.

Para reduzir o risco de incêndio, utilize apenas terminais de fio de telecomunicações Nº. 26 AWG ou s uperiores.

Para reducir el riesgo de incendios, usar sólo líneas de t elecomunicaciones de calibre No. 2 6 AWG o más gruesas.

För att minska brandrisken skall endast Nr. 26 AWG eller större telekommunikationsledning användas.

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Warnings and Cautions

Customer Equi pment Warning

Chapter3 Removing and Installing Port Adapters

Warning

Waarschuwing

Varoitus

Attention

The E1 interface card may only be installed in an ACA-permitted customer equipment or a Data Terminal Equipment (DTE) that is exempted from ACA's permit requirements. The customer equipment must only be housed in a cabinet that has screw-down lids t o stop user access to overvoltages on the customer equipment. The customer equipment has circuitry that may have telecommunications network voltages on them.

De E1-interfacekaart mag slechts geïnstalleerd worden in door A CA toeges tane apparatuur van de klant of in Data Terminal Equipment (DTE) die vrijgesteld is van de vergunningsvereisten van ACA. De apparatuur van de klant moet in een kastje geplaatst worden met sluitplaten die dichtgeschroefd kunnen worden om te voorkomen dat de gebruiker toegang verkrijgt tot overspanning op de apparatuur van de klant. De apparatuur van de klant heeft een schakelsysteem waarop telecommunicatienetwerkspanning kan staan.

E1-liitäntäkortin saa asentaa ainoastaan ACA:n hyväksymiin asiakaslaitteisiin tai Data Term inal Equipment -l aitteisiin ( DTE), jotka eiv ät kuulu ACA:n lupavaatimusten pii riin. Asiakaslaitteet on sijoitettava koteloon, jossa on kiinni ruuvattavat kannet, jotta käy ttäjä ei altistu asiakaslaitteiden ylijännitteille. Asiakaslaitteissa on virtapiiri, jossa voi olla tietoliikenneverkkojännitteitä.

La carte d’interface E1 ne peut être installée que dans un équipement de l’utilisateur autorisé par ACA ou dans un DTE (Data Terminal Equipment) pour lequel l’autorisation de ACA n’est pas exigée. L’équipement de l’utilisateur ne doit être placé que dans une enceinte munie de couvercles à vis qui empêchent l’utilisateur d’accéder aux surtensions présentes. L’équipement de l’utilisateur est muni de circuits qui peuvent avoir des tensions de réseau de télécommunications.

Warnung

Avvertenza

Advarsel

Die E1-Schnittstellenkarte darf nur in einer von der Australian Communications Aut hority (A C A) zugelassenen Teilnehmereinrichtung oder einer von den ACA-Zulassungsanforderungen ausgenommenen Datenendeinrichtung (DEE) installiert werden. Die T e ilnehmereinrichtung muß in einem Gehäuse untergebracht sein, das mit Aufschraubdeckeln versehen ist, um den Zugang der Benutzer zu Überspannungen an der Teilnehmereinrichtung zu verhindern. In der Tei lnehmereinrichtung befinden sich Schaltkreise, an denen mögli cherweise Fernmeldenetzspannungen anliegen.

La scheda d’interfaccia E1 può es sere installata solo in un’apparecchiatura con autorizzazione ACA o in un ‘Data Terminal Equipment (DTE)’ esente dai requisiti per l’autorizzazione ACA. La suddetta apparecchiatura deve essere contenuta in un armadio con coperchi bloccabili con viti, per impedire l’accesso alle sovratensioni in essa presenti; i suoi circuiti possono essere a tensioni di rete di telecomunicazioni.

Grensesnittkortet E1 kan kun installeres i kundeutstyr som er godkjent av ACA, eller i dataterminalutstyr (DTE) som er unndratt ACAs krav til tillatelse. Kundeutstyret må kun være plassert i et kabinett som har lokk som er skrudd fast, for å hindre brukertilgang til overspenning på kundeutstyret. Kundeutstyret inneholder kretser som kan ha nettverksspenning for telekommunikasjon.

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Port Ada p te r Re mo v a l a n d In stallat io n

Aviso

¡Advertencia!

Varning!

Warning

O cartão de ligação E1 apenas poderá ser instalado em equipamento dos clientes que possuam autorização da ACA (Australian Communications Authority) ou num DTE (Data Terminal Equipment), que esteja isento dos requis itos de aut orização da A CA. O equipamento dos clientes deverá ser somente colocado numa caixa com tampas de aparafusar, para impossibilitar o acesso do utilizador às altas tensões deste mesmo equipamento. O equipamento do cliente possui circuitos que poderão ter tensões de rede de telecomunicações.

La tarjeta de interfaz E1 sólo se puede instalar en un equi po de cliente permitido por ACA o en un equipo de terminal de datos (DTE) que no requi era el permiso de ACA. El equipo del cliente sólo debe estar instalado en un armario con cubiertas atornilladas, para evitar el acceso del usuario a los sobrevoltajes presentes en dicho equipo. El equipo del cl iente ti ene circuitos donde pueden estar presentes voltajes de la red de t elecomunicaciones.

E1-gränssnittskortet får endast installeras i en av ACA tillåten kundut rustning eller en Data Term inal Equipment (DTE) som är undantagen ACA:s licenskrav. Kundutrustningen måste vara i ett skåp med igenskruvade lock som hindrar användaren f rån att komma åt överspänning på kundutrustningen. Det finns kretsar i kundutrustningen som kan ha nätverksspänning.

When performing the following procedures, wear a grounding wrist strap to avoid ESD damage to the card. Some platforms have an ESD connector for attaching the wrist strap. D o not di rectly touch the midplane or backplane with your hand or any metal tool, or you could shock y ourself.

Caution To prevent jamming the carrier between the upper and the lower edges of the port adapter or interface

processor slot, and to ensure that the edge connector at the rear of the port adapter or VIP mates with the connection at the midplane or backplane, make certain that the carrier is positioned correctly, as shown in t he cutaway in the followi ng i llu s t ra tio ns.

Port Adapter Removal and Installation

In this section, the illustrations that follow give step-by-step instructions on how to remove and install port adapters in the Cisco 7200 series routers, Cisco 7200 VXR routers, Cisco 7401ASR routers, and Cisco 7500 ser ie s r ou ters. T h is sect io n c o nt a in s t he follow ing pro c ed ures:

• Cisco 7200 Series—Removing and Installing a Port Adapter, page 3-10

• Cisco 7301 Router—Remov in g a n d I n s talling a P ort Adapter, page 3 -1 1

• Cisco 7401ASR Router—Removing and Installing a Port Adapter, page 3-12

• Cisco 7500 Series—Removing and Installing an Interface Processor, page 3-13

• VIP—Removing and Installi ng a Port Adapter, page 3-14

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Port Adapter Re mov a l and Ins ta lla tio n

Cisco 7200 S eries —Removing and Installing a Port Adapter

Step 1

To remove the port adapter, place the port adapter lever in the unlocked position. (See A.) The port adapter lever remains in the unlocked position.

Step 2

Grasp the handle of the port adapter and pull the port adapter from the router, about halfway out of its slot. If you are removing a blank port adapter, pull the blank port adapter completely out of the chassis slot.

Step 3

With the port adapter halfway out of the slot, disconnect all cables from the port adapter. After disconnecting the cables, pull the port adapter from its chassis slot.

Step 4

To insert the port adapter, carefully align the port adapter carrier between the upper and the lower edges of the port adapter slot. (See B.)

Step 5

Carefully slide the new port adapter halfway into the port adapter slot. (See B.)

Step 6

With the port adapter halfway into the slot, connect all required cables to the port adapter. After connecting all required cables, carefully slide the port adapter all the way into the slot until the port adapter is seated in the router midplane.

Note: This adapter removal applies to any port or service adapter.

Slot guide

Cisco 7200

Series

Cisco 7200

Series

Port adapter lever

(locked position)

LINK

ENABLED

PCMCIA

ETHERNET 10BT

FAST SERIAL

SLOT 1

FE MII

EJECT

SLOT 0

ENABLED

CPU RESET

RJ-45

MII

RJ45

1O PWR

LINK

RJ45

LINK

MII

FAST ETHERNET INPUT/OUTPUT CONTROLLER

FAST ETHERNET

TOKEN RING

Port adapter lever

(unlocked position)

TOKEN RING

LINK

ENABLED

PCMCIA

ETHERNET 10BT

FE MII

SLOT 1

EJECT

SLOT 0

ENABLED

CPU RESET

RJ-45

MII

RJ45

1O PWR

LINK

RJ45

LINK

MII

FAST ETHERNET INPUT/OUTPUT CONTROLLER

FAST ETHERNET

27996

Step 7

After the port adapter is properly seated, lock the port adapter lever. (See A.)

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Port Ada p te r Re mo v a l a n d In stallat io n

Cisco 7301 Router—Removing and Installing a Port Adapter

Step 1

Use an ESD wrist strap to ground yourself to the router.

Step 2

To remove a port adapter, use a Phillips screwdriver to turn the screw holding the port adapter latch. The screw should be loose enough to allow the latch to rotate to an unlocked position. (See A.) The latch can rotate 360˚.

Step 3

Grasp the handle and pull the port adapter from the router, about halfway out of its slot. (See B.) If you are removing a blank port adapter, pull the blank port adapter completely out of the chassis slot.

Step 4

With the port adapter halfway out of the slot, diconnect all cables from the port adapter. After disconnecting the cables, pull the port adapter from its chassis slot.

Caution

The port adapter must slide into the slot guides close to the chassis lid. (See C.) Do not allow the port adapter components to come in contact with the system board or the port adapter could be damaged.

GIGABIT ETHERNET 0/0

SLOT 1

RJ45 EN

GIGABIT ETHERNET 0/1

LINK

RJ45 EN

GBIC

GIGABIT ETHERNET 0/2

ENABLED

RX CELLS

RX CARRIER

RX ALARM

ATM

CISCO 7411

LINK

RJ45 EN

GBIC

LINK

CONSOLEAUX

GBIC

100-240V, 2A, 50/60 Hz 24V

9A, 48 - 60V

ALARM COMPACT FLASH

STATUS

Step 5

To insert the port adapter, carefully align the port adapter carrier in the slot guides. (See C.) Slide the new port adapter halfway into the chassis.

Step 6

Connect all required cables to the port adapter. After connecting all required cables, carefully slide the port adapter all the way into the slot until the port adapter is seated in the midplane.

Step 7

After the port adapter is properly seated, turn and secure the port adapter latch in the upright, locked position. (See A.) Tighten the screw to ensure the port adapter remains firmly in place.

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Port Adapter Re mov a l and Ins ta lla tio n

Cisco 7401ASR Router—Removing and Installing a Port Adapter

Step 1

To remove the port adapter, use a number 2 Phillips screwdriver to loosen the screw on the port adapter latch. Rotate the port adapter latch until it clears the faceplate of the port adapter. (See A.) The latch can rotate 360˚.

LockedUnlocked

ENABLED

RX CELLS

RX CARRIER

RX ALARM

ENHANCED ATM

Step 2

Pull the port adapter from the router, about halfway out of its slot. (If you remove a blank port adapter, keep the blank port adapter for use in the router if you should ever remove the port adapter. The port adapter slot must always be filled.)

Step 3

With the port adapter halfway out of the slot, disconnect all cables from the port adapter. After disconnecting the cables, pull the port adapter completely out of the chassis slot.

Step 4

To insert the port adapter, locate the port adapter slot guides inside the Cisco 7401ASR router. They are near the top, and are recessed about 1/2 inch. (See B.)

Caution

The port adapter must slide into the slot guides under the chassis lid. Do not allow the port adapter components to come in contact with the system board, or the port adapter could be damaged.

ENABLED

RX CELLS

RX CARRIER

RX ALARM

ENHANCED ATM

Step 5

Insert the port adapter in the slot guides halfway, and then reconnect the port adapter cables.

Step 6

After the cables are connected, carefully slide the port adpater all the way into the slot until the port adapter is seated in the router midplane. When installed, the port adapter input/output panel should be flush with the face of the router.

Step 7

After the port adapter is properly seated, rotate the port adapter latch to the upright locked position and use a number 2 Phillips screwdriver to tighten the latch screw. If needed, loosen the latch screw to rotate the latch over the port adapter. Finish the installation by tightening the latch screw.

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Cisco 7500 Series—Removing and Installing an Interface Proc esso r

Remove a module as follows:

1. Use a screwdriver to loosen the captive installation screws (shown in A and D).

2. Simultaneously pull the ejector levers out to release the module from the backplane connector (shown in B). The levers should snap into their spring retainers.

3. Grasp the module handle with one hand and place your other hand under the carrier to support and guide the module as you pull it out of the slot. Avoid touching the card.

4. Place the removed module on an antistatic mat or antistatic foam, or immediately install it in another slot.

5. Install a new module or a filler (MAS7KBLANK) to keep dust out of the chassis and to maintain proper airflow through the chassis.

Install a module as follows:

1. Choose a slot for the new module and ensure that there is enough clearance to accommodate any interface equipment that you will connect directly to its ports.

Card carrier guide

Captive installation screw

2. Use a screwdriver to loosen the captive installation screws (shown in A) and remove the filler (or the existing module) from the slot to be filled.

3. Hold the module handle with one hand, and place your other hand under the carrier to support the module and guide it into the slot. Avoid touching the card.

4. Place the back of the module in the slot and align the guide on the carrier with the groove in the slot (shown in A).

5. Carefully slide the module into the slot until the faceplate makes contact with the ejector levers (shown in C).

6. Use the thumb and forefinger of each hand to push the ejector lever flat against the module (shown in B).

7. Use a screwdriver to tighten the captive installation screws.

Captive installation screw

EJECT

SLOT 1

NORMAL

SLOT 0

ENABLED

CPU HALT

CLASS 1 LASER PRODUCT LASERPRODUKT DER KLASSE 1

PRODUIT LASER DE CLASSE 1 PRODUCTO LASER DE CLASSE 1

RESET

AUX.

ROUTE SWITCH PROCESSOR

CONSOLE

ENHANCED GIGABIT ETHERNET

LINK

39395

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Port Adapter Re mov a l and Ins ta lla tio n

VIP—Removing and Installing a Port Adapter

Note: You must first remove the VIP from the chassis before removing a port adapter from the VIP.

Step 1

To remove the port adapter, remove the screw that secures the port adapter (or blank port adapter). (See A.)

Step 2

With the screw removed, grasp the handle on the front of the port adapter (or blank port adapter) and carefully pull it out of its slot, away from the edge connector at the rear of the slot. (See A.)

Step 3

To insert the port adapter, carefully align the port adapter carrier between the upper and the lower edges of the port adapter slot. (See B.)

Step 4

Carefully slide the new port adapter into the port adapter slot until the connector on the port adapter is completely seated in the connector at the rear of the port adapter slot. (See B.)

Screw

Chapter3 Removing and Installing Port Adapters

Carrier

Upper edge

Lower edge

Step 5

Install the screw in the rear of the port adapter slot on the VIP. Do not overtighten the screw. (See A.)

Step 6

Carefully slide the VIP motherboard into the interface processor slot until the connectors at the rear of the VIP are completely seated in the connectors at the rear of the interface processor slot. Use the ejector levers to seat the VIP in the interface processor slot. Tighten the captive installation screws on the VIP. (See C.)

Captive

installation

screw

EJECT

SLOT 1

NORMAL

SLOT 0

CPU HALT

RESET

AUX.

ROUTE SWITCH PROCESSOR

CONSOLE

26520

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Connecting Inter face Cabl es

The PA-VXA, PA-VXB, and PA-VXC port adapters use shielded twisted-pair cables with RJ-45 connectors to co n nect to a PBX or to the PST N .

Shielde d cables (fo il twisted-pair [ F TP ] ) w ith 1 2 0- o hm imped an ce are re qu ir ed to com pl y w ith C E marking re qu ir em en ts . Th ese s h i eld ed ca bl es a re n ot availa ble f r om Cisco S y stems; they ar e availab le from outside co m m er c i a l c able ve ndors.

To conn ec t s h ie lded twi s ted - pa ir cables with RJ -45 conne ctors to t he PA-VXA, PA-VXB, or PA-VXC port adapters, proceed as follows:

Step 1 Attach the cable directly to one of the RJ-45 ports on the PA-VXA, PA-VXB, or PA-VXC port adapter. Step 2 Attach th e network en d of t he cable to your ex te rn al eq ui p m en t. Step 3 Repeat Step 1 and Step 2 for the othe r PA-VXB o r PA-VXC por t.

Figure 3-3 Connecting the PA-VX C Twist ed-Pair Cable with RJ-45 Connector

Connecting Interface Cables

Note Port adapters have a handle attached, but this handle is not shown in Figure 3-3 to allow a full vi ew

0 1

Twisted-pair cable with RJ-45 connector

To PBX or PSTN

2T1/E1 VXC

24929

of the d eta il on e ach p o rt ad ap te r face pl at e.

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CHAPTER

Configuring the PA-VXA, PA-VXB, and PA-VXC

To continue your PA-VXA, PA-VXB, or PA-VXC por t adapter i nstallation, you must configure the card type as eit he r T1 o r E1 an d th en co nfigu r e t he in te rf ace s. The ins tru ctions tha t f o ll ow a pply t o all supported platforms. Minor differences among the platforms—with Cisco IOS software commands—are noted.

This chapter contains the following sections:

• Using th e EXEC Command Inter p re ter, p ag e 4 - 1

• Configuring the Interface , page 4-2

• Configuring Voice over IP, page 4-6

• Configuring Voice over Frame Relay, page 4-32

• Checking the Configuration, page 4-34

Using the EXEC Command Interpreter

You modify the co nf igu ra tion of your rout e r thr oug h the s oftw ar e com man d inte rpr ete r call e d the EXEC (also ca ll ed en ab le m o de ) . Yo u m u s t e nt er th e privileged l evel o f th e EXEC co mm an d interpr et er w it h the enable command before you can use the configure command to configure a new interface or change the existing configuration of an interface. The system prompts you for a password if one has been set.

The system prompt for the privileged level ends with a pound sign (#) instead of an angle bracket (>). At the co n sol e t er m in al , u se t h e f ol low in g pro ced u re to e nt er th e privileged l evel:

Step 1 At the user-level EXEC prompt, enter the enable command. The EXEC prompts you for a

privileged-level passwo r d a s f ollows:

Router> enable

Password:

Step 2 Enter th e passw ord (t he passw ord is c ase se nsiti ve ). For secur ity purpo ses, t he passw ord is not dis playe d.

When you en ter the c or rect passw ord , th e s yst em di spl ay s th e privil ege d- level syst em pr o mpt ( #):

Router#

For complete descriptions of software configuration commands, refer to the publications listed in the

“Rela ted D o cu mentation ” section on page viii.

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Configurin g th e Interface

Configuring the Interface

After you ve rify that the new PA-VXA, PA-VXB, or PA-VXC is installed correctly (the enabled LED goes on), use the privileged-level configure command to configure the new interface. Have the following informat io n availab le :

• Protocols you plan to route on the interface

• IP addresses, if you plan to configure the interface for IP routing

• Bridging protocols you plan to use

If you installed a new PA-VXA, PA-VXB, or PA-VXC or if you want to change the configuration of a n existing in terface, y o u m ust enter co nfigu r ati on mo d e to configu r e t he new in te rface. If you r ep laced a P A-VXA, P A-VXB, or PA-VXC that was previously configured, the system recognizes the new interface and brin gs it u p in it s exi s ti ng configur at io n .

For a summary of the configuration options available and instructions for configuring the interface on a PA -VXA , PA-VXB, or PA-VXC, re fer to the ap propr iate confi gurati on publ icati ons liste d in the

“Rela ted D o cu mentation ” section on page viii.

Y ou execute configuration commands from the privileged level of the EXEC command interpreter, which usually requires password access. Contact your system administrator, if necessary, to obtain password access. (See t he “Using the EXEC Command Interpreter” secti on on page 4-1 for an explanation of the privileged level of th e EXEC .)

Chapter4 Configuring the PA-VXA, PA-VXB, and PA-VXC

This section conta ins the following subsections:

• Shutting Down a Controller, page 4-2

• Performing a Basic Configuration, page 4-4

Shutting Down a Controller

Before you remove a PA-VXA, PA-VXB, or PA-VXC that you will not replace, or replace a PA-VXA, PA-VXB, or PA-VXC, use the shutdown command to shut down (disable) the controller to prevent anomalies when you reinstall the new or reconfigured port adapter. When you shut down the controller, it is designa ted administratively down in the show comma nd d is p lays.

Follow these s t ep s to sh u t d ow n a n in ter fa ce:

Step 1 Enter the privileged level of the EXEC command interpreter (also called enable mode). (See the “Using

the EX EC Command I nterpre te r” section on page 4-1 for instructions.)

Step 2 At the privileged-level prompt, enter c onfiguration mode and specify that the console terminal is the

source of the con figur atio n sub com ma nds , as fol lows :

Router# configure terminal Enter configuration commands, one per line. End with CNTL/Z. Router(config)#

Step 3 Shut down the c ontroller by en tering t he cont roller t 1 or co ntrolle r e1 subco m mand ( f ol low e d by the

interface address of the controller), and then enter the shutdown command. Table 4-1 shows the command sy ntax.

When you hav e fin ish ed , press Ctrl-Z—hold down the Control key while you press Z—or enter end or exit to exit configuration mode and return to the EXEC command interpreter.

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Table 4-1 Syntax of the shutdown Command

Platform Command Example

Cisco 7200 series and Cisco 7200 VXR routers

Cisco 7301 routers controller, fo llow ed by the type

Cisco 7401ASR routers controller, fo llow ed by the type

VIP in Cisc o 75 00 series router s controll er, fo llow ed by the type

controller, fo llow ed by the type (t1 or e1) and slot/port (port-adapter-slot-number/ interface-port-number)

(t1 or e1) and slot/port (port-adapter-slot-number/ interface-port-number)

(t1 or e1) and slot/port

adapter/port

(interface-processor-slot-number/ port -adapt e r- s lot-num ber/ interface-port-number)

The example i s fo r the T1 co nt r ol ler in p ort adap ter

slot 1.

Router(config)# controller t1 1/0

Router(config)# shutdown

Ctrl-Z

Router#

The example i s fo r the T1 co nt r ol ler in p ort adap ter

slot 1.

Router(config)# controller t1 1/0

Router(config)# shutdown

Ctrl-Z

Router#

The example i s fo r the T1 co nt r ol ler in p ort adap ter

slot 1.

Router(config)# controller t1 1/0

Router(config)# shutdown

Ctrl-Z

Router#

The example i s fo r th e T1 co n tr oller i n po rt ad ap ter

slot 0 of a VIP installed

in inte rface proce s sor slot 1.

Router(config-if)# controller t1 1/0/0

Router(config-if)# shutdown

Ctrl-Z

Router#

Conf ig uring the Interface

Step 4 Write the new confi gurati on to NVR AM as follows:

Router# copy running-config startup-config [OK] Router#

The system displays an OK message when the configuration has been stored in NVRAM.

Step 5 Verif y that the new interface is now in t he corre ct s tat e ( shut down) us i n g t he

show controllers command ( fol low ed by th e i nt er fac e t yp e an d i n ter fa ce a dd r ess o f th e interface) t o

display the specific interface.

Step 6 Reenable the int er face by d o in g t h e f ollow in g :

a. Re pe at Step 3 to re en abl e a n in ter fa ce. S u bst itu te the no shutdown command for the shutdown

command.

b. Re pe at Step 4 to wri te t h e n ew c on fig urat io n to m e m o ry. Use the

copy running-config startup-config command.

c. Repeat Step 5 to verify that the interface is in the correct state. Use the show controllers command

followed by th e t yp e an d a dd r ess o f th e controller.

For complete descriptions of software configuration commands, refer to the publications listed in the

“Rela ted D o cu mentation ” section on page viii.

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Configurin g th e Interface

Performing a Basic Configuration

This se cti on des cribe s g uide li nes fo r p er for ming a ba sic con f ig urat io n: en ab ling th e PA-VXA, PA-VXB, or PA-VXC po r t adapt er, s pe c if y ing the c a r d ty pe and controller, and e n ter ing var io us cont r oller subcommand s. Afte r conf iguri ng the PA-VXA, PA-VXB, or P A-VXC p ort adap ter in a Cis co 7200 seri es router, Cisco 7200 VXR router, Cisco 7301 router, Cisco 7401ASR router, or Cisco 7500 series route r, see the “Configur ing Voice over I P ” section on page 4-6 for information on configuring your route r for VoIP.

Specifying Card Type is Required

Because the port adapter can be configured for E1 or T1 connectivity, you must specify the card type as E1 or T1, as describ ed in the following procedure. There is no d efault card type. The port adapter is not functio na l u nt il the card ty pe is se t. Informat io n ab ou t the por t ad ap ter i s no t in dicated in t he outpu t o f any show commands unless the card type has been set to E1 or T1.

Before using the configure command , y ou mu st enter t h e p rivileg ed level of t he EX EC co m m an d interpr ete r with the enable com mand. The s y s te m pro m p ts y ou fo r a pass word i f on e ha s been s e t .

Use the following procedure to configure the PA-VXA, PA-VXB, or PA-VXC port adapters. Press the Return key after each co nfiguration s tep, un le s s o th e r w is e noted.

Chapter4 Configuring the PA-VXA, PA-VXB, and PA-VXC

Step 1 Confirm that the system recognizes the PA-VXA, PA-VXB, or PA-VXC port adapter by entering the

show running-config command:

Router# show running-config

Step 2 Use the configure terminal command to enter configuration mode and specify that the console terminal

is the source of the configura tion subcommands:

Router# configure terminal

Step 3 Specify whether the card is to be used as T1 or E1 by using the card type command in configuration

mode. The example below sets the card in slot 1 of a Cisco 7200 series router to T1:

Router(config)# card type t1 1

The example below sets the card in slot 1 of a Cisco 7200 series router to E1:

Router(config)# card type e1 1

The example below sets the card in port adapter slot 0 on a VIP in interface processor slot 1 of a Cisco 7500 series router to T1:

Router(config)# card type t1 1 0

The example below sets the card in port adapter slot 0 on a VIP in interface processor slot 1 of a Cisco 7500 series router to E1:

Router(config)# card type e1 1 0

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Note T o cha ng e the c ard t ype o f t he PA-VXA, PA-VXB, or PA-VXC after the card type command

has been entered, you must remove the card from the router, save the running configuration to startup configuration, and reboot the router. When the router has finished rebooting, reinsert th e car d an d r ep eat Step 3.

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Step 4 Use the controller command in configuration mode to enter the controller configuration mode for the

desired controller:

Router(config)# controller t1 Router(config-controller)#

Note The following steps must be done in controller configuration mode.

Step 5 Use the framing command to sel ect ca rr ier fr aming. If the car d is se t to T1, set f rami ng to e xte nded super

frame (ESF ) a s shown in t he exa m pl e b el ow:

Router(config-controller)# framing esf

If the ca rd is set to E1, set fr aming to C RC 4 as sh ow n i n th e ex ample below :

Router(config-controller)# framing crc4

Step 6 Use the linecode command t o sel ect the li ne co di ng. T1 card s shoul d be set to b ina ry 8-zer o subs ti tu tion

(B8ZS) as shown in the exampl e below:

Router(config-controller)# linecode b8zs

Conf ig uring the Interface

E1 cards should be set to HBD3 line code as shown in the example below:

Router(config-controller)# linecode hbd3

Step 7 Use the clock source command to sele ct betw ee n intern al or lin e clock ing.

Router(config-controller)# clock source line

Note Line clocking is normally selected because of the highly accurate cloc k source supplied by

the network.

Step 8 When installed in a Cisco 7200 VXR router, use the fram e- clo ck- sel ect priority carrier-type controller

command in configuration mode to specify the clock source. This command may be used to specify backup clock s o urces, as s how n in the exa mple b elow:

Router(config)# frame-clock-select 1 T1 1/0 Router(config)# frame-clock-select 2 T1 1/1

The example above assigns T1 1/0 as the primary clock source. If that clock fails, T1 1/1 will become the primary clock source.

Step 9 Use the ds0-group number timeslots range type command to cr eate a DS0 g ro u p.

Router(config-controller)# ds0-group 1 timeslots 10-18 type e&m-wink-start

Note The time slot range for a T1 card is 1 to 24, the time slot range for an E1 card is 1 to 30.

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Step 10 Ch an g e t he s h ut down s tat e t o up a nd e nab l e t he in terface:

Router(config-controller)# no shutdown

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The no shutdown command passes an enable command to the PA-VXA, PA-VXB, or PA-VXC port adapter. It also causes the PA-VXA, PA-VXB, or PA-VXC port adapter to configure itself based on the previous configuration commands sent.

Configuring Voice over IP

Voice Over IP (VoIP) enables a Cisco 7200 series router, Cisco 7200 VXR router, Cisco 7301 router, Cisco 7401AS R ro ut er, or C is c o 7500 se ri es r o u ter t o c ar r y voice traffic (for ex amp le, telephone cal ls and faxes) over an I P n etw ork.

VoIP offers the following benefits:

• Toll bypass

• Remote P BX p r es en ce over WANs

• Unified voice and data trunking

• POTS-Internet telephony gateways

Chapter4 Configuring the PA-VXA, PA-VXB, and PA-VXC

Prerequisi t e Tasks

Before you can configure your Cisco 7200 series router, Cisco 7200 VXR router, Cisco 7301 router, Cisco 7401ASR router, or Cisco 7500 series router to use VoIP, you must first:

• Establish a working IP network. For more information about configuring IP, refer to the

“IP Overview” and “IP Addressing and Services” chapters in the Cisco IOS Release 12.0 Network Protocols Configuration Guide, Part 1.

• Install the PA-VXA, PA-VXB, or PA-VXC port adapter in your router.

• Comple te you r compa ny’s dial plan.

• Establish a working telephony network based on your company’s dial plan.

• Integrate your dial plan and te lephony network into your existing IP network topology. Merging

your IP and telephony networks depends on your particular IP and telephony network topology. In general, w e m ake th e following sug g e s t io ns :

–

After you have analyzed your dial plan and decided how to integrate it into your existing IP network, you are ready to configure your network devices to support VoIP.

Use canonical numbers wherever possible. It is important to avoid situations where numbering systems are s i gn i ficantl y di ffe rent o n d i fferen t ro u ters o r acc ess servers in y ou r n etw o rk.

Make rout in g o r dial in g tra nsp ar en t to th e u s er —for example, avoid secondary dial tones from secondary s witches, w he re p oss i b le.

Contact your PBX vendor for instructions about how to reconfigure the appropriate PBX interface s .

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How VoIP Handles a Typical Telephone Call

Before configuring VoIP on your Cisco 7200 serie s router, Cisco 7200 VXR router, Cisco 7301 router, Cisco 7401ASR router , or Ci sco 7500 series route r , it he lps to un derst and what h appens at an appl icati on leve l when you place a call using VoIP. The general flow of a two-party voice call using VoIP is as follows:

1. The us er pic ks up th e hands et ; th is s igna ls an of f-h ook con dit ion to the signa lin g ap plic at ion pa rt of

VoIP in the Cisco 7200 series r outers, Cisco 7200 VXR rout ers, Cisco 7301 router, Cisco 7401ASR routers, or Cisco 7500 series routers.

2. The session ap pl ica ti on p ar t of VoIP issues a di al tone and wa its fo r th e user to dial a telep ho n e

numbe r.

3. The user dials t he te lep h on e nu mb er ; t h ose number s are accu mul at ed an d s to red by th e session

application.

4. After enoug h digits ar e a ccu m u la ted to m atc h a config ur ed dest in at io n pattern, the telephone

number is mapped to an IP host through the dial plan mapper. The IP host has a direct connection to either the destination telephone number or a PBX that is responsible for completing the call to the configured destination pattern.

Configuring Voi ce over IP

5. The sess io n appl ication t hen runs the H. 32 3 sessi on protocol to e stabli s h a transmissio n a n d a

reception channel for each direction over the IP network. If the call is being handled by a PBX, the PBX forwards the call to the destination telephone. If Resource Reservation Protocol (RSVP) has been configured, the RSVP reservations ar e put into effect to achieve the desired quality of service over the IP ne twor k .

6. The codecs are enabled for both ends of the connection and the conversation proceeds using

Realtime Transport Protocol/User Datagram Protocol/Int ernet Protocol (RTP/UDP/IP) as the protocol s tack.

7. Any call-progress indications (or other signals that can be carried in-band) are cut through the voice

path as soon as an end-to -en d audio ch anne l is establi shed. S ignali ng that can be detecte d by the voice ports (for example, in-band DTMF digits after the call setup is complete) is also trapped by the session application at either end of the connection and carried over the IP network encapsulated in Real Time Conferencing Protocol (RTCP) using the RTCP extension mechanism.

8. When either en d of t he ca ll hangs u p , th e RSVP r eservations are torn down (if R S V P is used) and

the session ends. Each end becomes idle, waiting for the next off-hook condition to trigger another call setu p .

Configu rat i on Tasks

To configure VoIP on the Cisco 7200 series routers, Cisco 7200 VXR routers, Cisco 7301 router, Cisco 7401ASR routers, or Cisco 7500 series routers, you need to perform the following steps:

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Step 1 Configure your IP network to support real-time voice traffic. Fine-tuning your network to adequately

support VoIP involves a series of protocols and features geared toward quality of service (QoS). To configure your IP network for real-time voice traffic, you need to take into consideration the entire scope of your network, and then select and configure the appropriate QoS tool or tools:

• RSVP

• Multilink PPP with interleaving

• RTP header compression

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Step 2 (Optional) If yo u plan to run VoIP ove r Frame Relay , you need to take c ertain f actors into consideration

Step 3 Use the num-exp command to configure number expansion if your telephone network is configured so

Step 4 Use the dial-peer voice command to define dial peers and switch to the dial-peer configuration mode.

Chapter4 Configuring the PA-VXA, PA-VXB, and PA-VXC

• Custom qu euin g

• Weighted fair queuing

See the “Configure IP Networks for Real-Time Voice Traffic” section on page 4-9 for information about how to select and configure the appropriate QoS tools to optimize voice traffic on your network.

when co nfigu ri n g VoIP for it to r u n s m ooth ly over Fra me Relay. For example, a p ub li c F r ame Relay cloud prov id es n o g ua ra nt ees for Q oS. See th e “Con figur in g Voice over Frame Relay” s ectio n on

page 4-32 for information about deploying VoIP ove r Frame Relay.

that you can reach a destination by dialing only a portion (an extension number) of the full E.164 telephone number. See the “Configure Number Expansion” section on page 4-14 for info r m a t i o n abou t numbe r expansion.

Each dial peer defi ne s the ch ar act er ist ics ass o ci ate d w ith a call leg. A call leg is a discrete segm en t of a call connection that lies between two points in the connection. An end-to-end call comprises four call legs, two from the perspective of the source router, and two from the perspective of the destination router. Dial peers are used to apply attributes to call legs and to identify call origin and destination. There are two different kinds o f d ial p eers :

• POTS—Dial peer describing the characteristics of a traditional telephony network connection.

POTS peers point to a particular voice port on a voice network device. To m inimally configure a POTS dial pe er, you ne ed to co n fig ure the fo llowin g tw o ch ar act er ist ics : ass o ci at ed te lep h on e number a nd l og ic al interfa ce. U se t he destination-pattern command to a ssociate a te lephone number with a POTS peer. Use th e port comman d to as so ci at e a specific logical in terface with a POTS peer. In addition, you can specify direct inward dialing for a POTS peer by using the direct-inward-dial command.

• VoIP —Dial peer describing the characteristics of a packet network connection; in the case of VoIP,

this is an IP network. VoIP peers point to specific VoIP devices. T o minimally configure a VoIP peer, you need to c onfigure the following two characteristics: associated destination telephone number and a destinatio n I P address. Use the destination-pattern command to define the destination telephone number associated with a VoIP peer. Use the session-target command to s p ec if y a destination IP address for a VoIP peer.

In additio n , y ou c an use VoIP peers to de fine characte ri sti cs s u ch as IP precedence, ad di ti on al Q oS param eters ( when RS V P i s c o n figured ) , codec, and voi c e activati on d e t ec t ion (VAD). Use t he ip

precedence co mm a nd to de fine IP p re ced en ce . If you have co nfigu r ed RSV P, use either the req-qos or acc-q os command to configure QoS parameters. Use the codec command to co nfigu r e sp ecific voice

coder rate s. U se the vad command to dis ab le voic e activation detection and the tr an s m iss i on o f silenc e packe ts .

See the “Configure Dial Peers” section on p ag e 4-16 and the “Optimize Dial Peer and Network Interface

Configur ations” section on page 4-29 for additional information about configuring dial peers and

dial-pee r charact eristi cs.

Step 5 You need to configure your router to support voice ports. In general, voice-port commands define the

character ist ics associ ate d w i th a pa rt icu l ar voice- p ort signali ng type. Voice por t s o n t h e Cisco 7200 series routers, Cisco 7200 VXR routers, Cisco 7301 router, Cisco 7401ASR routers, and Cisco 7500 series r outers supp ort three basi c voice signaling types:

• FXO—Foreign Ex ch an g e O ffice in terface

4-8

• FXS—Foreign Exchange Station interface

• E&M—“RecEive and TransM it” int er face o r th e “Ear a nd M o uth” inte rface

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Under mos t ci rc umstances, th e default voice-port co mm a nd value s ar e a de qu at e t o co nfigu re F X O a nd FXS ports to transport voice data over your existing IP network. Because of the inherent complexities involved wi th P BX ne tw or k s , E &M po r ts might need s p ecific voi ce - p or t values configured, depend in g on the specifications of the devices in your telephon y network. For informati on about configuring voice ports, see the “Configure Voice Ports” section on page 4-22.

Configure IP Networks for Real-Time Voice Traffic

You need to have a well-engineered end-to -end network when you run delay-sensitive applications such as VoIP. Fine-tun in g yo ur net w ork to ad equa tel y sup por t VoIP i n v o lv es a ser ie s of protoc o ls and fe ature s geared tow ard q u ality of ser v ice (QoS) . I t is b eyo n d th e s c op e o f th is document to ex pl ain t he s p eci fic details re latin g to wid e-sca le Q oS depl oym ent. Ci sco IOS softw are pr ovid es many to ols for ena blin g QoS on your backbone, such as random early detection (RED), weighted random early detection (WRED), fancy queuing (meaning custom, priority, or weighted fair queuing), and IP precedence. To config ure yo ur IP ne twork for real -time v oic e traf fi c, you must con sider t he ent ire scop e of yo ur netwo rk, and then sel ect the ap pro pr ia te Q oS tool or t o ol s.

Configuring Voi ce over IP

The important thing to remember is that QoS must be configured throughout your network—not just on the Cisco 7200 series routers, Cisco 7200 VXR routers, Cisco 7401ASR routers, or Cisco 7500 series routers running VoIP—to improve voice network performance. Not all QoS techniques are appropriate for all network routers. Edge routers and backbone route rs in your network do not necessarily perform the same ope ra ti on s ; th e Q oS ta s ks th ey perform mi gh t differ as w ell . To configure yo ur IP n etw or k fo r real-time voice traffic, you need to take into consideration the functions of both edge and backbone routers in your network, and then select the appropriate QoS tool or tools.

In general, edge routers perform the following QoS func tions:

• Packet classi ficat io n

• Admission control

• Bandwidth management

• Queuing

In general, backbone routers perform the following QoS functions:

• High-speed switching and transport

• Conge s ti on m anage m ent

• Queue management

Scalable Q oS s ol utio ns require cooperative ed ge an d ba ck bo n e f u nc tio n s. Altho ug h n ot mandator y, some QoS tools h ave been id en tified a s valuable in fine-t un ing your network

to support real-time voice traffic. To configure your IP network for QoS using these tools, perform one or mor e of the fo llowin g tasks :

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• Configure RSVP for Voice, page 4-10

• Configure Multilink PPP with Interleaving, page 4-11

• Configure RTP Header Compression, page 4-12

• Configure Custom Queuing, page 4-14

• Configur e Weighted Fair Q u e u in g, page 4-14

Each of these tasks is discu ssed in t he f ollowing sections.

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Configure RSVP for Voice

RSVP allows end systems to request a particular quality of service (QoS) from the network. Real-time voice traffic re quir es ne two rk co ns i stency. Without consist en t Q o S, r eal-time t r affic can exp er ie nc e jitter, insu fficien t bandw id th, delay variatio ns , or i nf o rmation loss. R S V P wo r ks in conj unction w ith current queuing mechanisms. It is up to the interface queuing mechanism (such as weighted fair queuing or weighted random early detection) to implement the reservation.

RSVP can b e equated to a dy n am i c a ccess list f o r packet flows. You should configure RSVP to ensure QoS if the following conditions exist in your network:

• Small-scale voice n et wo r k im p lementatio n

• Slow links

• Links with high utilization

• Links less than 2 Mbps

• Need fo r the best po s si bl e vo ice q ua lity

Enable RSVP

Chapter4 Configuring the PA-VXA, PA-VXB, and PA-VXC

To minimally configure RSVP for voice traffic, you must enable RSVP on each interface where priority needs to be set.

By defau lt, RSVP is disa bl ed so that it is ba ck war d compat ib le w ith s y stems tha t d o not im pl emen t RSVP. To enab le RSVP on an inter face, use th e following com mand in in te rf ace co nfi gur at io n mode:

ip rsvp bandwidth [interface-kbps] [single-flow-kbps]

This comman d start s RSVP an d sets the ban dwidt h and sin gle-fl ow limits . The default maxim um bandwidth is up to 75 percent of the bandwidth available on the interface. By default, the amount reser vable by a f l ow ca n b e up to the e n ti r e r es ervable bandw id th.

On subinterfaces, this command applies the more restrictive of the available bandwidths of the physical interface an d th e su b in ter fa ce.

Reservati ons o n in dividu al ci r cu its th at do no t ex cee d t he sin g le-flow limi t n ormally s uc ceed . If , however, reser vations have been made on other circuits adding up to the line speed, and a reservation is made on a subi nte rf ace which i tse lf has enou gh re maini ng ba nd width , i t will stil l be refuse d bec aus e the physical interface lacks supporting bandwidth.

Cisco 7200 series routers, Cisco 7200 VXR routers, Cisco 7301 router, Cisco 7401ASR routers, and Cisco 7500 series routers running VoIP and configured for RSVP request allocations according to the following formula:

bps = packe t_size + ip/udp/rtp header size * 50 per second

For G.729, the allocation is 24,000 bps. For G.711, the allocation is 80,000 bps.

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RSVP Configuration Example

The following example enables RSVP and sets the maximum bandwidth to 100 kbps and the maximum bandwidth per single request to 32 kbps (the example presumes that both VoIP dial peers have been configured):

interface DSPfarm 1/0/0

ip rsvp bandwidth 100 32 fair-queue

end ! dial-peer voice 1211 voip

req-qos controlled-load ! dial-peer voice 1212 voip

req-qos controlled-load

Configure Multilink PPP with Interleaving

Multiclass Multilink PPP interlea ving allo ws lar ge pack ets to be multi link-encapsulated and fragmented into smaller packets to satisfy the delay requirements of real-time voice traffic; small real-time packets, which are not mul ti lin k -e nc ap s ul at ed , ar e tr an sm it te d b et w een f r ag men ts of t he la rge pa cke ts. The interleavi ng f eature al s o p rovides a special t ransmit q ue ue for the smaller, d elay-sens it ive p ackets, enabling them to be transmitted earlier than other flows. Interle aving provides the delay bounds for delay-sen s it ive voice p ac ket s o n a s l ow lin k th at is u sed f o r ot he r be st- effor t t raffic.

Configuring Voi ce over IP

Note Interleaving applies only to interfaces that can configure a multilink bundle interface. These include

virtual templates, d ialer inte rfac es , an d I n teg ra ted S e rv ic es D i gi tal N et work ( I SD N ) B asi c Rate Interface (BRI) or Primary Rate Interface (PRI).

In general, Mu ltili nk PPP with interl ea ving is used i n conjun ction wi th weigh ted f air queuing and RSVP or IP precede nc e to ensure voice packet delivery. Use Multilink PPP with interleaving and weighted fair queuing to define how data will be managed; use RSVP or IP precedence to give priority to voice packe ts .

You should configure Multilink PPP if the following conditions exist in your network:

• Point-to-point connection using PPP encapsulation

• Slow links

Note Do not use Multilink PPP on links greater than 2 Mbps.

Enable Multilin k PPP with Inte r le aving

Multilink PPP suppo rt for i nter leaving can b e co nfigured on v irtual temp lates, diale r inte rfaces , and ISDN BRI or PRI interfaces. To configure interleaving, you need to complete the following tasks:

• Configure the dialer interface or virtual template, as defined in the relevant chapters of the

Cisco IOS Release 12.0 Dial Solu ti ons Co nfig uration G u id e .

• Configure Multilink PPP and interleaving on the interface or template.

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Step 1 Step 2 Step 3

Step 4

Note The ip rtp reserve command can be used instead of configurin g RS VP. If you configure RSVP, this

Chapter4 Configuring the PA-VXA, PA-VXB, and PA-VXC

To configure Multilink PPP and interleav ing on a configured and operational interface or virtual interface templat e, u s e th e f o llow in g co m mands i n in ter fa ce mod e:

Command Purpose

ppp multilink Enable M ul ti lin k P P P. ppp multilink interleave Enable r eal -t ime p acke t i nt er le avin g . ppp multilink fragment-delay

milliseconds ip rtp reserve lowest-UDP-port

range-of-ports

[maximum-bandwidth]

command i s no t requir e d .

Optionall y, configure a maximum fragment delay.

Reserve a s p eci al queu e for real -t ime p ack et flows to spe ci fied destination User Datagram Protocol (UDP) ports, allowi ng real-tim e tr affic to h ave h ig he r pr io r it y than ot her flows. T h is is only ap plica bl e if you have not co nfigu re d RSV P.

For more information about Multilink PPP, refer to the “Configuring Media-Independent PPP and Multilink PPP” chapter in the Cisco IOS Release 12.0 Dial Solutions Configuration Guide.

Multilink PPP Conf igur at io n Exa mple

The following example defines a virtual interface template that enables Multilink PPP with interleaving and a maximum real-tim e traffic delay of 20 milliseconds, and then applies that virtual template to the Multilink PPP bundle:

interface virtual-template 1

ppp multilink encapsulated ppp ppp multilink interleave ppp multilink fragment-delay 20 ip rtp reserve 16384 100 64

multilink virtual-template 1

Config ur e RTP Header Compr es sion

Real-Time Transport Protocol (RTP) is used for carrying packetized audio traffic over an IP network. RTP header com pre s sio n co mpr esses the IP/ U D P/RTP head er in an RTP data pack et from 40 byt es t o appro xi m ately 2 t o 4 byte s (most of the time ) , as shown in Figure 4-1.

This compression feature is beneficial if you are running VoIP over slow links. Enabling compression on both ends of a low-bandwidth serial link can greatly reduce the network overhead if there is a lot of RTP traffic on that slow link.

Typically, an RTP packet ha s a payload of appr oximately 20 to 160 bytes for audio applications that use compres sed p ay lo ad s. RTP he ad er co mp r ess ion is es p eci all y be ne ficial when t h e RTP payl oa d size is small (for example, compressed audio payloads between 20 and 50 bytes).

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Figure 4-1 RTP Header Compr ession

Before RTP header compression:

Configuring Voi ce over IP

20 bytes 8 bytes

Header

After RTP header compression:

IP/UDP/RTP header

12 bytes

UDP

RTP Payload

2 to 4 bytes

20 to 160 bytes

Payload

20 to 160 bytes

12076

You should configure RTP header compression if the following conditions exist in your network:

• Slow links

• Need to s ave band wid th

Note Do not use RTP heade r co mpre ss ion on lin ks gre ater tha n 2 Mbp s.

Perform the following tasks to configure RT P header compression for VoIP. The first task is required; the seco nd task is optional .

• Enable RTP Heade r Co m p r essio n o n a S er i al In terface, p ag e 4 - 13

• Change the Number of Header Compression Connections, page 4-14

Enable RTP Header Compression on a Serial Interface

To use RTP header compression, you need to enable compression on both ends of a serial connection. To enable RTP header compression , use the fo ll owing co m m an d i n in terface co nfigu ration mod e:

ip rtp header-compression [passive]

If you include the passive keyword, the software compresses outgoing RTP packets only if incoming RTP packets on th e same inter fac e a re co m p re ss ed . If y ou u se the command wi th ou t th e pa ssive keyword, the software compresses all RTP traffic.

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Change the Number of Header Compression Connections

By default, the software supports a total of 16 RTP header compr ession connec tions on an interface. To specify a di fferen t num b er o f RTP heade r co mp re s sio n co nnections, u s e t h e f ollow in g co mm a nd in interface co nfi gur ati on mode:

ip rtp compression-connections number

RTP Header Compression Configuration Example

The followin g exa mpl e enables RTP head er compression for a ser i al interface:

interface serial 0

ip rtp header-compression encapsulation ppp ip rtp compression-connections 25

Config ure Custom Queuing

Some QoS fea tur es, s uch a s IP RTP reserve and c ust om que uing, a re base d on the tr an spor t pro toco l and the asso ciated po rt numbe r . Rea l-tim e voi ce traf f ic is ca rried on UDP por ts rangin g from 1 6384 to 166 24. This number is derived from the following formula:

16384 = 4 multiplied by the number of voice ports in the Cisco 7200 VXR router

Chapter4 Configuring the PA-VXA, PA-VXB, and PA-VXC

Custom queuing and other metho ds for identifying high-priority streams s hould be configured for these port ranges.

Configure Weighted Fair Queuing

Weighted fair queuing ensures that queues do not starve for bandwidth and that traffic gets predictable service. Low - volume traffic strea m s r ece ive pref er en t ial se rv ice; high-vo lu me tr affic s treams shar e t he remaining capacity, obtaining equal or proportional bandwidth.

In general, we ighted fai r queuin g is us ed in conju nction with Mu ltilin k PPP with interl ea ving and RSVP or IP precedence to ensure v oice packet del ivery. Use weighted fair queuing with Multi link PPP to define how dat a w i l l be man ag ed; use RSVP or I P p receden c e to give p ri or it y to voic e packets .

Configur e N um ber Expansion

In most corporate environments, the telephone network is configured so that you can reach a destination by dialing only a portion (an extension number) of the full E.164 telephone number. VoIP can be configured to recognize extension numbers and expand them into their full E.164 dialed numbers by using two c ommands in tandem : destination-pattern and num-exp. Before you configure these two commands, it is helpful to map individual telephone extensions with their full E.164 dialed numbers. This can be done easily by creating a number expansion table.

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Create a Numbe r Expansion Table

In Figure 4-2, a small company wants to use VoIP to integrate its telephony network with its existing IP network. The destination pattern (or expanded telephone number) associated with Router A (located to the left of the IP cloud) is (408) 555-xxxx, wh er e x xxx identi fies t h e i nd ividu a l di al pe er s by ext en s io n. The destin ati o n p at te rn ( o r exp and ed t el eph o ne n um be r) a ss oc iat ed wit h Ro ut er B (lo cat ed to t he r ig ht of the I P cloud ) is ( 729) 411- xxx x.

Figure 4-2 Sample VoIP Network

408 555-1001

408 555-2001

T1 ISDN PRI

Voice port

0:D

1:D

729 411-5002 729 411-5003

729 411-5001 729 411-5004

ISDN PRI

Router A

WAN

72xx 72xx

10.1.1.1

cloud

WAN

10.1.1.2

Configuring Voi ce over IP

Voice port 0:D

Router B

408 555-3001

Table 4-2 shows the number expansion table for this scenario.

Table 4-2 Sample Number Expansi on Tabl e

Extension Destination Pattern num-exp Co mm and Entr y

1001 4085551001 num-exp 1001 4085551001 2001 4085552001 num-exp 2001 4085552001

3.... 4085553 ... num-exp 3... 4085553...

5001 7294115001 num-exp 5001 7294115001 5002 7294115002 num-exp 5002 7294115002

5... 7294115... num-exp 5001 7294115...

Note Yo u can use t he peri od s ymbol (. ) to re present variabl es ( s uch as extension numb er s ) in a telep hone

numbe r.

The inform ation included in this example needs to be configured on both Router A and Router B.

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Expand a Number

To define how to expand an extension number into a particular destination pattern, use the following command in global configuration mode:

num-exp extension-number extension-string

You can verify the number expansion information by using the show num-exp c ommand to verif y th at you have mapped the telephone numbers correctly.

After you have configured dial peers and assigne d destination patterns to them, you can verify number expansion informat ion by using the show dialplan number command to see how a telephone number maps to a dial peer.

Configur e D i al Peers

The key point to understanding how VoIP functions is to understand dial peers. Each dial peer defines the characteristics associated with a call leg, as shown in Figure 4-3 and Figure 4-4. A ca ll leg is a discret e seg m en t of a call c onnection th at lies betw ee n tw o po ints in the con ne ction. All of th e cal l legs for a pa rticu l ar co nn ec ti on h ave th e same co nn ec tio n I D .

Chapter4 Configuring the PA-VXA, PA-VXB, and PA-VXC

There are two di fferen t kind s o f d ial p eer s:

• POTS—Dial peer describing the characteristics of a traditional telephony network connection.

POTS pee r s po int to a partic ular voi ce po r t on a vo ice net wo rk devic e .

• VoIP —Dial peer describing the characteristics of a packet network connection; in the case of VoIP,

this is an IP network. VoIP peers point to specific VoIP devices.

An end- to - en d call comp r ises four call legs, tw o fr o m t he perspec tive o f th e s o u rc e r o ut er as s how n in

Figure 4-3, and two from the perspective of the destination router as shown in Figure 4-4. A dial peer is

associate d wi th ea ch o ne of thes e c al l l egs . Dial peer s ar e us e d to ap pl y at tr ibu tes to call legs an d t o identify call ori gi n an d destin at io n. Attri but es a pp li ed to a call leg in clu d e Q o S , codec, VAD, an d fax rate.

Figure 4-3 Dial Peer Call Legs from the Perspective of the Source Router

Source

Source router

Call leg for POTS

dial peer 1

IP cloud

Call leg for VoIP

dial peer 2

Destination

10353

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Figure 4-4 Dial Peer Call Legs from the Perspective of the Destination Router

Configuring Voi ce over IP

Destination

Inbound Versus Outbound Dial Pe er s

Dial pee rs a re us ed f or b ot h inbo und an d outb oun d c all le gs. It is i mpor ta nt to re membe r t hat thes e te rms are def i ned f rom the router’s perspective. An inbound call leg originates outside the router. An outbound call leg or ig in at es from the router.

For inbound call legs, a dial peer might be associated with the calling number or the port designation. Outbound call legs always have a dial peer associated with them. The destination pattern is used to identify the outbound dial peer. The call is associated with the outbound dial peer at setup time.

POTS peers ass o ci ate a telepho n e n um be r wi th a pa rt ic ul ar voi ce po rt s o t ha t i nc oming cal ls f o r th at telepho ne num ber ca n be re ceived and outgoing c alls can be place d. VoIP peers point to spe c ifi c dev ic es (by associating destination telephone numbers with a specific IP address) so that incoming calls can be received and outgoing ca lls can b e p l aced . Both P OTS an d VoIP p eers a re ne ed ed to establis h VoIP connecti on s.

Call leg for VoIP

dial peer 3

IP cloud

Call leg for POTS

dial peer 4

Destination router

Source

10354

Establi shi ng commu ni cati on usi ng VoIP is s imila r to conf i gu rin g an IP stati c route: you are est abl ishi ng a specific voice connection between two defined endpoints. As shown in Figure 4-5, for outgoing calls (from the perspective of the POTS dial peer 1), the POTS dial peer establishes the sourc e (through the origin ati ng t ele pho ne numbe r o r v oice po rt) of t he cal l. T he VoIP dia l peer est abli she s th e des tin at ion b y associati ng t he d es ti na ti on te lephone num b er w i th a specific I P ad d re ss.

Figure 4-5 Outgoing Calls from the Perspective of POTS Dial Peer 1

Source Destination

IP cloud

VoIP call leg

10.1.1.2

Voice port

0:D

(408) 526....

Voice port

Source router

0:D

POTS call leg

10.1.2.2

10355

(310) 520....

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To configur e call co nn ec tivi ty between th e s o u rc e an d destinatio n as illust r ated in Figure 4-5, ent er th e followi ng comman d s on rout er 10.1.2 . 2 :

dial-peer voice 1 pots

destination-pattern 1408526....

port 1/0/0

dial-peer voice 2 voip

destination-pattern 1310520....

session target ipv4:10.1.1.2

In the previous configuration example, the last four digits in the VoIP dial peer’s destinatio n patte rn were replaced with wildcards. This means that from router 10.1.2.2, calling any number string that begins with the digits “1310520” results in a conne ctio n to rout er 10.1. 1.2 . Thi s im plie s tha t route r 10. 1.1 .2 serv ice s all numb ers begi nning with thos e digits. From ro uter 10.1 .1.2, calli ng any num ber str ing that begins with the digits “1408526” will resu lt in a connec tio n to r o ut er 1 0. 1. 2.2 . Thi s implie s th at r ou te r 10 .1 .2 .2 services all numbers beginning with those digits. For more information about stripping and adding digits, see th e “Outbound Dialing on POTS Peers” section on page 4-19.

Figure 4-6 shows how to complete the end-to-end call between dial peer 1 and dial peer 4.

Figure 4-6 Outgoing Calls from the Perspective of POTS Dial Peer 2

Chapter4 Configuring the PA-VXA, PA-VXB, and PA-VXC

1/0/0

Dial peer 2

10.1.2.2

Dial peer 1

(408) 555-4000

Voice port

T o compl ete th e end- to -en d cal l bet ween di a l pee r 1 an d dial peer 4 as il lu str at ed in Figure 4-6, en te r th e followi ng comman d s on rout er 10.1.1 . 2 :

dial-peer voice 4 pots

destination-pattern 1310555....

port 1/0/0

dial-peer voice 3 voip

destination-pattern 1408555....

session target ipv4:10.1.2.2

Create a Peer Configuration Table

There is spe cific da ta r elative to each dial pe er tha t ne ed s to b e id en tified bef o re you can co nfi gur e di al peers in VoIP. On e w ay to d o th is is to create a peer co n fig uration tab le .

IP cloud

VoIP call leg

10.1.1.2

Dial peer 3

POTS call leg

SourceDestination

Dial peer 4 Voice port 1/0/0

(310) 555-1000

S6614

4-18

Using the example in Figure 4-2, Router A, with an IP address of 10.1.1.1, connects a small sales branch off i ce t o th e mai n o f f i ce t hr ou g h R out e r B . The re a re th re e te lep h on es in t he sa le s b r an ch office th at ne ed to be established as dial peers. Router B, with an IP address of 10.1.1.2, is the primary gateway to the main office; as su ch , i t n eeds to b e co n ne cte d to the co m p any’s PBX . Th ere are four d evices t ha t n ee d to be es tab li shed a s d ia l peer s in th e mai n o f f i ce, all of whi ch a re ba sic t ele pho nes c onn ect ed to t he PBX.

Figure 4-2 shows a diagram of this small voice network. Table 4-3 shows the peer configuration table for the example illustrated in Figure 4-2.

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Config ur e POTS Peers

Table 4 -3 Peer Configuration Table for Sample VoIP Network

Dial Peer Tag Ext Dest-Patter n Type S ess ion-Target Codec QoS

Router A

1 6.... +1408555.... POT S

10 +1729411.... VoIP IPV4 10.1.1.2 G.729 Best Effort

Router B

11 +1408555.... VoIP IPV4 10.1.1.1 G.729 Best Effort

4 2.... +1729411.... POT S

POT S peers enable in coming calls to be received by a particular telephony device. To configure a POT S peer, you need to uniquely identify the peer (by assigning it a unique tag number), define its telephone numbers, and associate it with a voice port through which calls will be established. Under most circumstances, the default values for the remaining dial-peer configuration commands will be sufficient to estab li sh co nn ec tio n s .

Configuring Voi ce over IP

To enter t he d ial -p ee r co nfigu r ati on mode (and s el ect P OTS as t he method o f voice- r ela ted encapsulation), use the following command in global configuration mode:

dial-peer voice number pots

The number value of the d ial- p eer vo ic e p o ts co m mand is a t a g th at u ni quely iden ti fies t he d ial p eer. (This n umber has loc a l s ignific ance on ly.)

To configur e t he identified P OTS p eer, use th e following c ommands in d ial -pee r co nfi gur ati on m o d e:

Command Purpose

Step 1

Step 2

destination-pattern string Define the destination telephone num ber associated with this

port controller numbe r Associate this POTS dial peer with a specific logical dial interface.

Outbound Dialing on POTS Peers

When a router receives a voice call, it selects an outbound dial peer by comparing the called number (the full E.164 telep hone nu m b er ) in th e call info r mat ion with t he number configured as the destinat io n pattern for the POTS peer. The router then strips out the left-justified numbers corresponding to the destin ati on pa tte rn mat ch ing the call ed numbe r. If you have conf i gur ed a pre f ix , the pre f ix wil l be put in front of the remaining numbers, creating a dial string, whic h the router will then dial. If all numbers in the dest in at io n pa tte rn a re str ip p ed o ut , t he u s er receives (d ep en di n g o n th e attached e qu ip ment) a dial tone.

POTS dial pe er.

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For e xamp le, supp ose there is a voi c e call for whi ch the E.1 64 ca lled numbe r is 1 (310) 767- 222 2. If you configure a destination pattern of “1310767” and a pr efix o f “9,” the router strips out “1310767” from the E.164 telephone number, leaving the extension number of “2222.” It then appends the prefix “9” to the front of th e re m ai ni ng num b er s, so t hat th e act ua l nu m b ers di ale d ar e “9, 2222.” The co m ma in th is example means that the router will pause for one second between dialing the “9” and the “2” to allow for a seconda ry dial tone.

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Direct Inward Dial for POTS Peers

Direct inward dial (DID) is used to determine how the called number is treated for incoming POTS call legs. As shown in Figure 4-7, incoming means from the perspective of the router. In this case, it is the call leg coming into the router to be forwarded through to the appropriate destination pattern.

Figure 4-7 Incoming and Outgoing POTS Call Legs

Chapter4 Configuring the PA-VXA, PA-VXB, and PA-VXC

PBX

Incoming

call leg

Router A

cloud

72xx

Outgoing

call leg

Router B

72xx

PBX

26560

Unless otherwise configured, when a call arrives on the router, the router presents a dial tone to the caller and colle cts digits un ti l i t can iden ti f y t h e d es t in ati on d ia l p eer. After the d i al p eer has been ide nt ifie d, the call is forwarded through the next call leg to the destination.

There are ca s es w h en it m i ght be necessary fo r th e r o ut er t o u se th e called n umber Dialed Num ber Identification Service (DNIS) to find a dial peer for the outgoing call leg—for example, if the switch connecti ng th e cal l to the r o ut er h as a lr ead y co ll ect ed th e digits. D ID e na bl es t h e r outer to match the called number with a dial peer and then directly place the outbound call. With DID, the router does not present a dial tone to the caller and does not collect digits; it forwards the call directly to the configured destination.

To use DID and an inco ming called num ber, a dial peer must be associat ed with th e incom ing cal l leg. It is hel pfu l to under sta nd the lo gic behi nd t he algor it hm use d to asso ci ate the inco ming call le g with th e dial peer.

The algorit hm u sed t o a s soc iat e in co m i ng call legs wi th di al p eers uses th re e in p ut s (wh ic h are derived from sign al in g an d in ter fa ce in fo r mat ion asso cia te d w i th th e call) and fou r d efine d d ial p eer e lements. The three signaling inputs are:

4-20

• Called nu m b er (D N IS) —Set of numbers representing the destination, which is derived from the

ISDN setup message or CAS DNIS.

• Calling number (ANI)—Set of numbers representing the origin, which is derived from the ISDN

setup message or CAS DNIS.

• Voice port—Voice po rt carrying th e cal l.

The four defined dia l peer elements are:

• Destination pattern—Pattern re pres e nt in g th e p h on e nu m b er s to w h ic h the peer c an co n nect.

• Answer addres s—Pattern representing the phone numbers from which the peer can connect.

• Incoming c all ed n umber—Pattern re p res en ti ng t he p ho ne n umbers th at associa te an in co m i ng ca ll

leg to a peer based on the called number or DNIS.

• Port—Port th r ou g h w hic h cal ls to this peer ar e p l ace d.

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Using th e elemen ts, th e algorithm is as f ol low s:

For all peer s w h er e cal l t yp e (VoIP versus POTS) match e s d ia l p ee r ty pe : if the ty pe is matched, associat e t he ca lled numb er w it h th e i nc oming cal led - nu mb er

else if the type is matche d, ass o ci ate calling - num b er w it h an sw er-address else if th e t yp e is m a tc he d, as so ci ate calling - nu mb e r w it h destina tion-pat te rn else if the type is matche d, ass o ci ate voice por t t o po r t

This alg ori th m sh ows that if a valu e i s not configur ed f or answer a dd r ess , th e o r ig in ad d re s s is used because, in m o st cas e s, t he o ri gi n ad dress an d an swe r ad dres s ar e t he s ame.

To confi gur e D I D f or a particular POTS di al peer, use th e f o ll owin g co m mands, in itially in g lo b a l configuration m ode:

Command Purpose

Step 1 Step 2

dial-peer v oi ce number pots Enter the dia l-peer configuration mode to configure a POTS peer. direct-inward-dial S pecify direc t i nwar d dial f or t hi s P OTS pe er.

Configuring Voi ce over IP

Note Direct in w ar d di al is c on figured for th e calling P OTS di al pe er.

Config ure VoIP Peers

VoIP peers enable outgoing calls to be made from a particular telephony device. To configure a VoIP peer, you need to uniquely identify the peer (by assigning it a unique tag number) and define its destination telephone number and destination IP address. As with POT S peers, under most circumst an ces , th e default valu es for th e r emaining d ial - pe er co nfigu r at io n c om m an d s ar e adequat e t o establish connections.

To enter t he d ial -p ee r co nfigu r ati on m od e ( an d select VoIP as th e method of voice-relate d encapsulation), use the following command in global configuration mode:

dial-pee r vo ic e number voip The number value of the d ial- p eer vo ice voip co mm an d is a t ag th at u ni qu el y id entifies the d ial p eer. To configu re the iden ti fied VoIP peer, use the fol low in g co mm an d s in d ia l- pe er co n figur at io n m o de :

Command Purpose

Step 1

Step 2

destination-pattern string Define the destin atio n teleph one numbe r associ ated wit h this VoIP

session-target {ipv4:destination-address | dns:host-name}

dial peer. Specify a destination IP address for this dial peer.

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Verify Configuration

You can check the validity of your dial -peer configuration by performing the following tasks:

• If you have relati vely fe w dial peers configured, you can use the show dial-peer voice command to

• Use the show dialplan number command to show the dial peer to which a particular number

Troubleshooti ng Tips

If you are having trouble conne cting a call and you suspect the problem is associated with dial-peer configuration, you can try to resolve the problem by performing the following tasks:

• Ping the associat ed I P ad d re ss to confirm c on n ect ivit y.

• Use the show dial -p eer vo ic e command to verify that the operational status of the dial peer is up.

• Use the show dialplan number command on the local and re mo te routers to ver if y th at th e da ta is

• If you ha ve con f ig ure d nu mb er e x pans ion, u se th e show num-exp command to check that the partial

Chapter4 Configuring the PA-VXA, PA-VXB, and PA-VXC

verify that the data configure d is correct . U se th is c ommand to d isp la y a s p eci fic di al pe er o r to displa y all co nfig ure d dial peer s.

(destin atio n patte rn) reso lves.

configured correctly on both.

number on the local router maps to the correct full E.164 telephone number on the remote router.

• If you have co n figur ed a co de c valu e, there c an be a p r ob le m if b oth Vo I P di al pe er s o n e ith er si de

of the co n ne cti on h ave inco m p at ib le codec val ue s. M ak e s u r e t hat b ot h VoIP peer s h ave b een configured w it h th e sa m e c od ec value.

• Use the debug vpm spi comm an d to verif y th e outpu t st r in g t h at th e r o ut er d ial s is co rrect.

• Use the debug cch323 rtp comman d to ch eck RTP packet tran s po rt.

• Use the debug cch323 h225 comman d to ch eck the ca ll s et up .

Configure Voice Ports

Voice ports on Cisco 7200 series routers, Cisco 7200 VXR routers, Cisco 7301 router, Cisco 7401ASR routers, and Cisco 7500 series routers support three basic voice signaling types:

• FXO—The Fore ig n Exc ha nge Office interfa ce a ll ows a co n ne cti on to be dir ect ed to t he P ST N ’s

central o ffice (o r to a s ta nd ar d P BX in ter fa ce, if t he local t e le co m mu nication s authori ty permits ). This interface is useful for off-pre mises extension applications.

• FXS—The Fo reig n Ex change Stat io n in terface al lows co nnection for b asi c telepho ne eq u ip men t,

key sets, and PBXs, and supplies ring, voltage, and dial tone.

• E&M—Th e “Ear and Mouth” interfa ce (or “RecEive and TransMit” interface) allows connection for

PBX trunk lines (tie l ines) . It is a signa ling te chnique for two -wire and four -wire tele phone an d trunk interface s .

In general , vo ice-port co mmands define th e charact er ist ics associa ted w i th a par t icu la r voice- p or t signaling t yp e. U nd er m o st ci rc ums t an ce s , th e de fau lt voice -p o rt co m mand values ar e a de qu at e t o configure FXO and FXS ports to tra nsport voice data over your existing IP network. Because of the inherent co m p lex it ies involved w it h PBX ne two r ks, E& M po rts mi g ht n eed sp eci fic voice- p or t values configured, depending on the specifications of the devices in your telephony network.

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Config ure FXO or FXS Voic e Ports

Under most circumstances, the default voice-port values are adequate for both FXO and FXS voice ports. If you need to change the default configuration for these voice ports, perform the following tasks. Items included in Step 1 and Step 2 are required; items included in Step 3 are optional.

Step 1 Identify the voice port and enter the voice-port configuration m ode by using the voice-port command. Step 2 Configure the following mandatory voice-port parameters by using the indicated commands:

• Dial type (FXO only) using the dial-type command

• Signa l type using t he signal command

• Call progress tone usin g the cptone command

• Ring frequency (FXS only) using the ring frequency comman d

• Ring number (FXO only) using the ring number command

Step 3 Configure one or more of the following optional voice-port parameters by using the indicated

commands:

• PLAR connection mode using the connection plar command

Configuring Voi ce over IP

Step 1 Step 2

Step 3

Step 4

Step 5

Step 6

Step 7

• Music threshold using the music-th resh o ld command

• Descri pt ion us ing the description command

• Comfo rt noise (if VAD is activated—vad is a d ial -peer command) usi n g the comfort-noise

command

To configure FXO and FXS voice ports, use the following commands beginning in privileged EXEC mode:

Command Purpose

configure t erm in a l Enter the global configuration mode. voice- p ort

slot-number/subunit-number/port

Identify the voice port you want to configure and enter the voice-port co nfi gur ati o n mode.

dial-type {dtmf | pulse} (For FXO ports only.) Select the appropriate dial type for

out-dialing.

signal {loop-start |

Select the ap propr iate sig nal type fo r this inte rface.

ground-start} cptone country Select th e ap pr o priate voice c all p ro g re ss tone for th is i n ter fa ce.

The def au lt fo r th is command is us. For a list of supported coun tri es , re fe r to th e Voice, Video, an d H ome Ap p licatio ns Command Reference.

ring number number (For FXO ports only.) Specify the maximum number of rings to

be detect ed be fo r e a nsw e ri ng a call.

connection plar string (Optio nal.) Sp ec if y the Pr ivate Li ne Auto R ingdown ( PL A R )

connecti on if this voi ce por t is us ed for a PL A R conn ection. The string value specifies the d estination t el eph o ne n umber.

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Command Purpose

Step 8

Step 9

Step 10

music-threshold number (Opti on al. ) Sp eci fy the thre sho ld (in d eci bels ) for on- hol d music .

description string (Optional.) Attach descriptive text about this voice-port

comfort-noi se (Optio nal.) S p ecify that ba c k gr o und noise wil l be ge nerated .

Validation Tips

You can check the validity of your voice-port configuration by performing the following tasks:

• Pick up th e handset o f a n att ac hed t el ep ho ny devi ce an d ch eck f or a dial to n e.

• If you have dial tone, check for dual tone multifrequency (DTMF) de tection. If the dial tone stops

• Use the show voice-port co m mand to ver ify that the d at a c on figur ed i s co rre c t.

Troubleshooti ng Tips

Chapter4 Configuring the PA-VXA, PA-VXB, and PA-VXC

Valid entries are from –70 dB to –30 dB.

connection.

when you dial a digit, then the voice port is m ost likely configured properly.

If you are having trouble conne cting a call and you suspect the problem is associa ted with voice-port configuration, you can try to resolve the problem by performing the following tasks:

• Ping the associat ed I P ad d re ss to confirm c on n ect ivit y.

• Use the show voice-port co m mand to ma ke su re th at th e port is en ab le d. If the p or t is o fflin e, use

the no shutdown command.

• If you have configured E&M interfaces, make sure that the values pertaining to your specific PBX

setup, su ch a s timing o r t y pe , are correc t.

• Check t o see if the vo ic e network m o du le has bee n c or r ect ly insta lle d. For mor e i nf o rmation, r ef er

to the installa tion doc ument Voice Networ k Module and Voice I n terface Card Configur at io n Note that cam e w i th y ou r voice network m o du le .

Fine- Tune FXO and FXS Voi ce Ports

Depending on the specifics of your particular network, you might need to adjust voice parameters involving timing, in p ut gain, a nd o ut p ut attenu a ti on f o r F X O or F X S vo ice port s . C ollectively, these command s ar e re fe rred t o as vo ic e- po r t t unin g co mm a nd s.

Note In m ost cas es , the d efault val ues for vo ice-po r t tunin g comma nd s are sufficient .

To configure voice-port tuning for FXO and FXS voice ports, pe rform the following steps:

4-24

Step 1 Identify th e vo ice p or t an d e nt er t he voice- p or t co nfigu r ati on mode us i ng th e voice -p ort command. Step 2 For each of t he f ol low in g par ameters , s el ect th e appropria te valu e u s in g th e co m man d s in d ica ted:

• Input gain using the input gain command

• Output attenuation using the output attenuation command

• Echo cancel coverage using the echo-cancel en a ble and echo-can cel co ver age commands

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• Nonlinear processing using the non-linear command

• Initial digit timeouts using the ti m e ou t s i n it ia l command

• Interdigit timeouts using the timeouts interdigits command

• Timing other than timeouts using the timing digit, timing inter-digit, timing pulse-digit, and

timing pulse-inter-digit commands

T o f in e-tu ne F XO or FXS v oi ce p orts , us e th e following commands be gi nni ng in privileged EXEC mod e:

Command Purpose

Step 1 Step 2

configure t erm in a l Enter the global configuration mode. voice- p ort

slot-number/subunit-number/port

Step 3

Step 4

Step 5

Step 6

Step 7

Step 8

echo-can cel enabl e Enable echo cancellation of voice that is sent out the interface and

echo-can cel coverag e va lu e Adjust t he s iz e ( in millisec ond s ) of the echo ca ncel. Acc e p tab le

non-linear Enable nonlinear processing, which shuts off any signal if no

timeo uts init ial seconds Specify t he nu mb er o f s ec on d s th e s y st em wa i ts f o r th e caller to

timeouts interdigit sec onds Specify t he n umb er o f sec on d s th e s ystem waits (af ter the c all er

timing digit milliseconds If the voice-port dial type is DTMF, configure the DTMF digit

Configuring Voi ce over IP

Identify the voice port you want to configure and enter the voice-port co nfi gur ati o n mode.

received bac k o n th e sam e in terface.

values are 16, 24, and 32.

near-end speech is detected. (Nonlinear processing is used with echo canc ell at io n. )

input the first digit of the dialed digits. Valid entries for this command are from 0 to 120.

has inp u t t he initial d ig it) for th e caller t o input a s u b sequent digit. Valid entri es f o r th is c ommand ar e f r om 0 to 1 20 .

signal duration. The range of the DTMF digit signal duration is from 50 to 100. The default is 100.

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Step 9

Step 10

Step 11

timing inter-digit m illiseconds If the voice-port dial type is DTMF, configure the DTMF

inter-dig it s i gn al duratio n. T h e r an g e of the D T MF inter-dig it signal duration is from 50 to 500. The default is 100.

timing pulse-digit milliseconds (FXO ports only.) If the voice-port dial type is pulse, configure

the pulse-digit signal duration. The range of the pulse-digit signal duration is from 10 to 20. The default is 20.

timing pulse-inter-di git

milliseconds

(FXO ports only.) If the voice-port dia l type is pulse, configure the puls e inter-dig it signal du r ation. The rang e o f th e pulse-inter - digit signal dura tion is from 100 to 1000. The default is 500.

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Configur in g Voic e ove r IP

Note After you change any voice-port command, it is a good idea to cycle the port by using the shutdown

and no shutdown commands.

Config ur e E&M Voice Ports

Unlike FXO and FXS voice ports, the default E&M voice-port parameters most likely are not sufficient to enab le voice data tr ansmi ss io n over y ou r IP network . E&M voi c e- p or t values m u s t matc h th o s e specified by the particular PBX device to which the voice port is connected.

To configur e an E&M voice po rt, perform th e f o ll owing s t ep s. I te ms in cl ud ed i n Step 1 and Step 2 ar e require d; it em s in clu ded in S t ep 3 ar e o p tio n al.

Step 1 Identify the voice port and enter the voice-port configuration m ode by using the voice-port command. Step 2 For each of t he follow in g r e qu ir ed p a r ameters, select th e a pp r op r iat e p ar a m e te r valu e by u s in g th e

commands i nd icated:

• Dial type using the dial-type command

Chapter4 Configuring the PA-VXA, PA-VXB, and PA-VXC

• Signa l type using t he signal command

• Call pr o gr ess tone u s in g the cptone command

• Operation using the operation command

• Type using the type command

• Impe da nce us in g the impedance command

Step 3 Select one or more of the following optional parameters by using the indicated commands:

• PLAR connection mode using the connection plar command

• Music threshold using the music-th resh o ld command

• Description using the description command

• Comfo rt to n e ( if VAD is activated) u s in g the comfort-noise command

To configure E&M voi ce ports, use the following commands beginning in privileged EXEC mode:

Command Purpose

Step 1 Step 2

Step 3 Step 4

configure t erm in a l Enter the global configuration mode. voice- p ort

slot-number/subunit-number/port

Identify the voice port you want to configure and enter the voice-port co nfi gur ati o n mode.

dial-type {dtmf | pulse} Select the appro priate di al type for out-di aling. signal {wink-start | immediate |

Select the ap propr iate sig nal type fo r this inte rface.

delay-dial}

Step 5

cptone {australia | bra zil | china

Select th e ap pr o priate voice c all p ro g re ss tone for th is i n ter fa ce.

| finland | france | germany |

japan | northam eri ca | unitedkingdom}

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Command Purpose

Step 6

Step 7

Step 8

Step 9

connection plar string (Optio nal.) Sp ec if y the Pr ivate Li ne Auto R ingdown ( PL A R )

music-threshold number (Opti on al. ) Sp eci fy the thre sho ld (in d eci bels ) for on- hol d music .

description string (Optional.) Attach descriptive text about this voice-port

comfort-noi se (Optio nal.) S p ecify that ba c k gr o und noise wil l be ge nerated .

Validation Tips

Yo u c an check the val idity o f y ou r voice-p ort co n figu r a t ion by pe r f o rm i ng the f ollowing tasks :

• Pick up th e handset o f a n att ac hed t el ep ho ny devi ce an d ch eck f or a dial to n e.

• If you have a dial tone, check for DTMF detection. If the dial tone st ops when you dial a digit, then

the voic e port is most likely configured properly.

Configuring Voi ce over IP

connecti on if this voi ce por t is us ed for a PL A R conn ection. The string value specifies the d estination t el eph o ne n umber.

Valid entries are from –70 dB to –30 dB.

connection.

• Use the show voice-port co m mand to ver ify that the d at a c on figur ed i s co rre c t.

Troubleshooti ng Tips

If you are having trouble conne cting a call and you suspect the problem is associa ted with voice-port configuration, you can try to resolve the problem by performing the following tasks:

• Ping the associated IP address to confirm connectivity. If you cannot successfully ping your

destination, refer to the Netwo r k Protocol s Configur at ion Guide, Part 1.

• Use the show voice-port co m mand to ma ke su re th at th e port is en ab le d. If the p or t is o fflin e, use

the no shutdown command.

• If you have configured E&M interfaces, make sure that the values pertaining to your specific PBX

setup, su ch a s timing o r t y pe , are correc t.

• Check t o see if the vo ic e network m o du le has bee n c or r ect ly insta lle d. For mor e i nf o rmation, r ef er

to the installa tion doc ument t ha t came w ith your vo ice n e tw o rk mo dule.

Fine- Tune E&M Voice Port s

Depending on the specifics of your particular network, you may need to a djust voice parameters involving timing, input gain, and output attenuation for E&M voice ports. Collectively, these commands are referred to as voice-port tuning commands.

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Note In m ost cas es , the d efault val ues for vo ice-po r t tunin g comma nd s are sufficient .

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Step 1 Identify the voice port and enter the voice-port configuration m ode by using the voice-port command. Step 2 For each of t he f ol low in g par ameters , s el ect th e appropria te valu e u s in g th e co m man d s in d ica ted:

Chapter4 Configuring the PA-VXA, PA-VXB, and PA-VXC

To configure voice-port tuning for E&M voice ports, perform the following steps:

• Input gain using the input gain command

• Output attenuation using the output attenuation command

• Echo cancel coverage using the echo-cancel en a ble and echo-can cel co ver age commands

• Nonlinear processing using the non-linear command

• Initial digit timeouts using the ti m e ou t s i n it ia l command

• Interdigit timeouts using the timeouts interdigit command

• Timing other than timeouts using the timing cl ea r-wait , ti ming delay-duration, timing

delay-start, timing dial-pulse min-delay, timing digit, timing inter-digit, timing pulse, timing pulse-inter-digit, timing wink-duration, and timing wink-wait commands

Step 1 Step 2

Step 3

Step 4

Step 5

Step 6

To fine-tune E&M voice ports, use the following commands beginning in privileged EXEC mode:

Command Purpose

configure t erm in a l Enter the global configuration mode. voice- p ort

slot-number/subunit-number/port

Identify the voice port you want to configure and enter the voice-port co nfi gur ati o n mode.

echo-can cel enabl e Enable echo cancellation of voice that is sent out the interface and

received bac k o n th e sam e in terface.

echo-can cel coverag e va lu e Adjust t he s iz e ( in millisec ond s ) of t he echo ca ncel. Acc e p tab le

values are 16, 24, and 32.

non-linear Enable nonlinear processing, which shuts off any signal if no

near-end speech is detected. (Nonlinear processing is used with echo canc ell at io n. )

timeo uts init ial seconds Specify t he nu mb er o f s ec on d s th e s y st em wa i ts f o r th e caller to

input the first digit of the dialed digits. Valid entries for this command are from 0 to 120.

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Command Purpose

Step 7

Step 8

timeouts interdigit sec onds Specify t he n umb er o f sec on d s th e s ystem waits (af ter the c all er

timing clear-wait milliseconds timing delay-duration

milliseconds

timing delay-start millis ec onds timing dial-pulse min-delay

milliseconds

timing digit mill iseconds timing inter-digit millis econds timing pulse pulse-per-second timing pulse-inter-digit milliseconds timing wink-duration

milliseconds timing wink-wait milliseconds

Configuring Voi ce over IP

has inp u t t he initial d ig it) for th e caller t o input a s u b sequent digit. Valid entri es f o r th is c ommand ar e f r om 0 to 1 20 .

Specify ti ming parameters. Valid entries for clear-wait are from 200 to 2000 milliseconds (ms). Valid entrie s for delay-duration are from 100 to 5000 ms. Valid entries for delay-start are from 20 to 2 000 ms. Valid entries for dial-pulse min-delay are from 0 to 5000 ms. Valid entries for digit are from 50 to 100 ms. Valid entries f or inter-digit are from 50 to 50 0 ms. Valid entries f or

pulse are from 10 to 20pulse-per-second. Valid entries for pulse-inter-digit are 100 to 1000 ms. Valid entries for wink-duration are from 100 to 400 ms. Valid entries for wink-wait are from 100 to 5000 ms.

Note After you change any voice-port command, it is a good idea to cycle the port by using the shutdown

and no shutdown commands.

Optimize Dial Peer and Network Interface Configurations

Dependin g on ho w you have configure d your ne t wor k int er fac es, you m ight ne ed t o con f ig ure addi t ional VoIP dial-peer parameters. This section describes the following topics:

• Configure IP P recedence fo r D ia l P e er s, p ag e 4- 29

• Configure RSVP for Dial Peers, page 4-30

• Configure Codec and VAD for Dial Peers, page 4-31

Config ur e IP Precedence f or Di al Peers

If you wa nt to g i v e re al-t ime voi ce t raffic a higher pr io rity t ha n othe r net wo rk t ra ff i c, yo u can we i ght th e voice data traffic associated with a particular V oIP dial peer by using IP precedence. IP precedence scales better than R S V P but p rov ides no admis s io n c o n tr ol.

To give real-ti m e vo ic e t ra ffic pre ced en ce over o th er I P n et work t ra ffic, use th e f o ll owin g co mm a nd s, beginning in global configuration mode:

Command Purpose

Step 1 Step 2

dial-peer v oi ce number vo ip Enter the dial-peer configuration mode to configure a VoIP peer. ip precede nce number Select a precedence level for the voice traffic associated with that

dial peer.

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Configur in g Voic e ove r IP

In IP precedence, the numbers 1 through 5 identify classes for IP flows; the numbers 6 and 7 are used for network and backbone routing and updates.

For example, to ensure that voice traffic associated with V oIP dial peer 103 is given a higher priority than other IP network tr affic , enter th e f ollowing :

dial-peer voice 103 voip

ip precedence 5

In this example, when an IP call leg is associated with V o IP dial peer 103, all packets transmitted to the IP network through this dial peer have their precedence bits set to 5. If the networks receiving these packets have been configured to recognize precedence bits, the packets are given priority over packets with a low er co n figur ed p r ece de nc e val ue.

Config ur e RSVP for Dial Peer s

If yo u have c onfigure d your WAN or L AN inter fa ce s fo r RS V P, you m us t configur e th e Q o S f or any associate d VoIP pe er s. To configure q u al ity o f s er v ice f or a selected VoIP peer, use the fo ll owing commands, beginning in global configuration m ode:

Chapter4 Configuring the PA-VXA, PA-VXB, and PA-VXC

Command Purpose

Step 1 Step 2

dial-peer v oi ce number vo ip Enter the dial-peer configuration mode to configure a VoIP peer. req-qos [best-effort |

Specify the desired quality of service to be used.

controlled - lo a d | guar antee d-delay]

Note We suggest that you select controlled-load for the req ue sted quality of s er v ice .

For example, to specify guaranteed delay QoS for VoIP dial peer 108, enter the following:

dial-peer voice 108 voip

destination-pattern +1408528 req-qos controlled-load session target ipv4:10.0.0.8

In this example, every time a connection is made through VoIP dial peer 108, an RSVP reservation request i s made betw een the lo ca l r o ut er, all in t er m ed ia te ro u ter s i n the path, an d th e fi nal d es t in ati on router.

To gene ra te an S N M P tr ap m e s sag e if the re se rve d Q oS is less t ha n t he co n fig ured val ue fo r a s ele cted VoIP peer, use the following commands, beginning from the global configuration mode:

Command Purpose

Step 1 Step 2

dial-peer v oi ce number vo ip Enter the dial-peer configuration mode to configure a VoIP peer. acc-qos [ best-effort |

controlled - lo a d |

Specify t he Q oS valu e b el ow wh ich an S NMP trap w il l b e generated.

guar antee d-delay]

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Note RSVP reservations are o nly one-w ay. If you configure RSVP, the VoIP dial peers on both ends of the

connecti on mu s t be co n figured f or R S VP.

Config ur e Codec and VAD for Dial Peers

Coder-de coder (codec) and voice activity detection (VAD) for a dial peer determine how much bandwidth the voice session uses. Typically, codec is used to transform analog signals into a digital bit stream and digital signals back into analog signals—in this case, it spe cifies the voice code r rate of speech fo r a d ia l p ee r. VAD is u sed t o di sab le the tra nsmission o f s ile n ce p ac ket s.

Configure Codec for a VoIP Dial Peer

To specif y a voice coder ra te fo r a selected VoIP peer, use the f o llow in g com m an d s, in it ially beginni ng in global configuration mode:

Command Purpose

Step 1 Step 2

dial-peer v oi ce number vo ip Enter the dial-peer configuration mode to configure a VoIP peer. codec [g711alaw | g711ulaw |

g729r8]

Configuring Voi ce over IP

Specify the desired voice coder rate of speech.

The default for th e code c command is g729r8; normally the de fault configu rat ion for this com mand is the most desirable. If, however, you are operating on a high-bandwidth network and voice quality is of the highest importance, you should configure the codec command for g711alaw or g711ulaw. Using these values r e su lts in bette r voice quality, but it also requires hig her bandw id th requirements for voice.

For example, to speci fy a co de c r at e o f G .7 11a -law f o r VoIP dial pe er 1 08 , e nt er t he following:

dial-peer voice 108 voip

destination-pattern +1408528 codec g711alaw session target ipv4:10.0.0.8

Configure VAD for a VoIP Dial Peer

To disable th e transmis si on o f s il en ce p ac ket s f or a select ed VoIP peer, use the fol lowing c om m an ds , beginning in global configuration mode:

Command Purpose

Step 1 Step 2

dial-peer v oi ce number voip Enter the dial-peer configuration mode to configure a VoIP peer. vad Disable the transmission of silence p ackets (ena bling VAD).

The defaul t for th e vad command is enabled; normally the default configuration for this command is the most desirable. If you are opera ting on a high-bandwidth network and voice quality is of the highest importa n ce, y ou s h o ul d d i s ab le vad. Using this val ue w il l r es u lt in b etter voic e q uality, but it w ill al s o require higher bandwidth requirements for voice.

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Configuring Voice over Frame Relay

For exampl e, to en ab le VAD for VoIP dial pe er 10 8 , e nt er th e fo ll owing :

dial-peer voice 108 voip destination-pattern +1408528 vad session target ipv4:10.0.0.8

Configuring Voice over Fr ame Relay

Yo u ne ed to take certain factors into con s i deration w he n configu r in g VoIP for it to r u n smoot hl y over Frame Relay. A public F r ame Rela y clo u d prov id es n o guar an t ees f o r Q oS. Fo r re al-time traffic to b e transmi tted in a ti m el y manner, the d at a r ate must n o t exceed the c ommitted i nf o rm ation rate ( CI R) , o r there is the possibility that packets will be dropped. In addition, Frame Relay traffic shaping and RSVP are mut ua lly ex clu s ive. This is particul ar ly importan t to remem ber if mu ltiple data-lin k connect io n identifiers (D LC Is) are carried on a sin g le interface.

For Frame Relay links with slow output rates (less than or equal to 64 kbps), where data and voice are being tr ansmit te d over the same P V C, w e r e co m mend t h e f ol low ing sol u tio ns:

• Separate DLCIs for voice and data—By providing a separate s ubinterface for voice and data, you

can use the appropriate QoS tool per line. For example, each DLCI would use 32 kbps of a 64 kbps line.

Chapter4 Configuring the PA-VXA, PA-VXB, and PA-VXC

–

Apply adaptive traffic shaping to both DLCIs.

–

Use RSV P o r IP pr ec ed en ce t o pr io rit ize voice traffic.

–

Use compr es se d RTP to minimize voice pac ket siz e.

–

Use we ig ht ed fai r qu eu ing to manage vo ice tr affic .

• Lower MTU size—Voice packets ar e ge ne ra ll y sm al l. B y low er ing th e m ax im um transmi ssio n uni t

(MTU) si ze (for example, to 3 00 bytes), large da ta packets can be b ro ke n u p in to smaller d ata packets that can more easily be interwoven with voice packets.

Note Lowering the MTU size affects data throughput speed.

• CIR equal to line rate—Make sure that the data rat e does not exceed the C IR. This is accomplis hed

through generic traffic shaping.

–

Use RSV P o r IP pr ec ed en ce t o pr io rit ize voice traffic.

–

Use compr es se d RTP to minimize voice packet h ead er si ze.

• Traffic shaping—Use adaptive traffic shaping to throttle back the output rate based on the backward

explicit congestion notification (BECN). If the feedback from the switch is ignored, packets (both data and voice) m ight be discarded. Because the Frame Relay switch does not distinguish between voice a n d d a t a p ackets , vo ic e pack et s coul d b e di s c ar d e d , whic h w o uld re s ul t in a d eterio ra t i on of voice qua lity.

–

Use RSV P, compressed RTP, reduced M T U s i ze, an d ad ap tive tr affic sh ap in g ba s ed on B EC N to hold the data rate to the CIR.

4-32

–

Use gen er ic tr affic shaping t o obtain a low inte rp acket wait time. Fo r example, se t B c to 4 00 0 to obtai n an inter p ack et wait of 1 25 ms.

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Voice over Frame Relay Configurat i on Example

For Frame Relay, it is cust om ar y to co n fig ure a main in te rf ace an d several s u binterfaces, on e subinter face p er P V C . Th e fo ll owing ex amp le co nfi gur es a Frame Re lay m a in in t er fac e an d a subinter fac e so th at voice an d da ta tr affic can b e s u cc es sf u lly t ra nsp o rt ed :

interface serial 1/1 MTU 300 no ip address encapsulation frame-relay no ip route-cache no ip mroute-cache fair-queue 64 256 1000 frame-relay ip rtp header-compression

interface serial 1/1.1 MTU 300 ip address 10.0.0.5 255.0.0.0 ip rsvp bandwidth 48 48 no ip route-cache no ip mroute-cache bandwidth 64 traffic-shape rate 32000 4000 4000 frame-relay interface-dlci 16 frame-relay ip rtp header-compression

Configuring Voi ce over Frame Relay

In this co n fig urat io n example, th e m a in interface h as b e e n con figu re d as f o llows :

• MTU size is 300 bytes.

• No IP add r ess is assoc iat ed w it h th is se ri al in terface. Th e IP a dd r ess m us t b e assigned for th e

subinterface.

• Encapsulation method is Frame Relay.

• Fair queui ng is en ab led .

• IP RTP header co mpr ession is en ab l ed

The subin terfa ce ha s b een co n figured as follows:

• MTU size is inherited from the main interface.

• IP address for the subinte rface is specified .

• Bandwidth is set to 64 kbps.

• RSVP is enabled to use the default value, which is 75 percent of the configured bandwidth.

• Generic traffic shaping is enabled with 32 kbps CIR where Bc = 4000 bits and Be = 4000 bits.

• Frame Re lay D LCI numb er is speci fied.

• IP RTP header co mpr ession is en ab l ed .

Note When traffic bursts over the CIR, output rate is held at the speed configured for the CIR (for example,

traffic will not go beyond 32 kbps if the CIR is set to 32 kbps).

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Checking the Configur ation

Checking the Configuration

After co n fig ur in g th e new interfa ce, u s e t he show commands to display the status of the new interface or all in te rf ace s, an d use the ping co m m an d t o ch eck connect ivity. This s ect io n in clu d es t he f ol lowin g subsections:

• Using s how Comm ands to Verify t he New Inte r fa c e Stat us, pag e 4 - 34

• Using loopback Commands, page 4-42

Using show Commands to Verify the New Interface Status

Table 4-4 demonstrates how you can use the show commands to verify that new interfaces are configured

and operat in g co rr ec tl y a nd t ha t t he PA-VXA, PA-VXB, or PA-VXC por t a da pt er ap p ear s i n t h em correctly. Sample displays of the output of selected show commands ap pe ar in the sect io ns t ha t f ol low. For complete command descriptions and examples, refer to the publications listed in the “Related

Documentation” sectio n on pa ge viii.

Troubleshooting Tips

If information about the port adapter is not indicated in show c ommand output, it is probably because the car d ty pe h a s n o t b een s p ecified.

Because the port adapter can be configured for E1 or T1 connectivity, you must specify the card type as E1 or T1, as described in “Performing a Basic Configuration” section on page 4-4. Ther e i s n o de fault card type. The port adapter is not functional until the card type is set.

Note The outputs that appear in this document may not match the output you receive when running these

command s. The out pu ts in th is do cu ment are ex amp le s o nl y.

Table 4-4 Using show Commands

Command Function Example

show vers ion or show hardware

show controlle rs D ispla ys all the curren t interfa ce

show diag slot Displays types of port adapters

Displays system hardware configuration, the number of each interface type installed, Cisco IO S software version, names and sources of conf igurati on fil es, and boot images

processors and their interfaces

installed in your system and information ab o ut a s p ec ific port adapter sl ot, i nt er fac e p roc es so r slot, or chassis slot

Router# show version

Router# show controllers

Router# show diag 2

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Table 4-4 Using show Commands ( continued)

Command Function Example

show interf aces typ e port-adapter-slot-number/ interface-port-number

show protocols Displays protocols configured for the

show running-config Displays th e running co nfi gu r a ti on

show startup-config Displa ys the c on figur at ion stor ed in

Displa ys s tatus info rm atio n ab out a specific type of i nt erfac e ( f or example, DS Pfarm) in Cisco 7200 series routers, Cisco 7200 VXR routers, Cisco 7401ASR routers, or Cisco7500series routers

entire sy stem and fo r s p eci fic interface s

file

NVRAM

Checking the Configuration

Router# show interfaces DSPfarm 1/0

Router# show protocols

Router# show

running-config

Router# show startup-config

If an interface is shut down and you configured it as up, or if the displays indicate that the hardware is not funct io ning pr ope rl y, ensure that t he int erf ac e is pr ope rl y con nect ed an d t ermina ted . If you sti ll ha v e problems bringing up the interface, contact a service representative for assistance. This section includes the following subsections and offers some platform-specific output examples:

• Using the show version or show hardware Commands, page 4-35

• Using the show diag C ommand, pag e 4-37

• Using the show in terfaces Command, page 4 -4 0

Choose the s ubs ect ion ap propri a te fo r y our syst e m. Pr ocee d to th e “Using l oop ba ck Co mma nds ” section

on page 4-42 when you have finished using the show commands.

Using t he show ver sion or show hardware Comm ands

Use the show version (or show hard ware) co m mand to dis pl ay th e co nfigu r ati on o f th e s ystem hardware, the number of each inte rface type installed, the Cisco IOS software version, the names and sources of configuration files, and the boot images.

Note The outputs that appear in this document may not match the output you receive when running these

command s. The out pu ts in th is do cu ment are ex amp le s o nl y.

Cisco 7200 Series and Cisco 7200 VXR Routers

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Following is an exa mp le of t he s h ow version c ommand from a Cisco 7206VXR router:

Router# show version

Cisco Internetwork Operating System Software IOS (tm) 7200 Software (C7200-IS-M), Version 12.0(5)XE3, TAC:Home:SW:IOS:Specials for info Copyright (c) 1986-1999 by cisco Systems, Inc. Compiled Sat 20-Nov-99 10:51 by en Image text-base: 0x60008900, data-base: 0x6139A000

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Checking the Configur ation

ROM: System Bootstrap, Version 12.0(19990210:195103) [12.0XE 105], BOOTFLASH: 7200 Software (C7200-IS-M), Version 12.0(5)XE3,

Router uptime is 4 days, 21 hours, 8 minutes System returned to ROM by reload System image file is "slot0:c7200-is-mz.120-5.XE3"

cisco 7206VXR (NPE300) processor with 57344K/40960K bytes of memory. R7000 CPU at 262Mhz, Implementation 39, Rev 1.0, 256KB L2, 2048KB L3 Cache 6 slot VXR midplane, Version 2.0

Last reset from power-on Bridging software. X.25 software, Version 3.0.0. Primary Rate ISDN software, Version 1.1. 1 FastEthernet/IEEE 802.3 interface(s) 1 ATM network interface(s) 10 Channelized T1/PRI port(s) 5 Voice resource(s) 125K bytes of non-volatile configuration memory.

20480K bytes of Flash PCMCIA card at slot 0 (Sector size 128K). 8192K bytes of Flash PCMCIA card at slot 1 (Sector size 128K). 4096K bytes of Flash internal SIMM (Sector size 256K). Configuration register is 0x0

Chapter4 Configuring the PA-VXA, PA-VXB, and PA-VXC

Cisco7401ASR Routers

Following is an exa mp le of t he s h ow version c ommand from a Cisco 7401ASR router with the PA - VXB - 2T E 1 + p ort ad ap ter sh ow n a s a voi ce res o u rce:

Router# show version

Cisco Internetwork Operating System Software IOS (tm) 7401ASR Software (C7401ASR-IS-M), Version 12.0(5)XE3, TAC:Home:SW:IOS:Specials for info Copyright (c) 1986-1999 by cisco Systems, Inc. Compiled Sat 20-Nov-99 10:51 by en Image text-base: 0x60008900, data-base: 0x6139A000

ROM: System Bootstrap, Version 12.0(19990210:195103) [12.0XE 105], BOOTFLASH: 7401ASR Software (C7401ASR-IS-M), Version 12.0(5)XE3,

Router uptime is 4 days, 21 hours, 8 minutes System returned to ROM by reload System image file is "slot1:c7401ASR-is-mz.120-5.XE3"

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Cisco 7500 Series Routers

Following is an exa mp le of t he s h ow version c ommand from a Cisco 7500 series route r:

Router# show version

Cisco Internetwork Operating System Software IOS (tm) RSP Software (RSP-ISV-M), Version 12.1(20000613:174753) [] Copyright (c) 1986-2000 by cisco Systems, Inc. Compiled Wed 28-Jun-00 18:59 by ang Image text-base: 0x60010968, data-base: 0x613FC000

ROM: System Bootstrap, Version 5.3(16645) [ang 571],RELEASE SOFTWARE BOOTFLASH: GS Software (RSP-BOOT-M), Version 11.1(5654)XX [mwu 105]

cheng10 uptime is 14 hours, 6 minutes System returned to ROM by power-on System image file is "tftp://223.255.254.254/muck/ang/rsp-isv-mz.1213t"

cisco RSP2 (R4600) processor with 81920K/2072K bytes of memory. R4600 CPU at 100Mhz, Implementation 32, Rev 2.0 Last reset from power-on G.703/E1 software, Version 1.0. G.703/JT2 software, Version 1.0. X.25 software, Version 3.0.0. Bridging software. Primary Rate ISDN software, Version 1.1. Chassis Interface. 1 VIP2 controller (4 T1)(1 ATM)(2 Voice resources). 2 VIP2 R5K controllers (8 Ethernet)(4 T1)(1 ATM)(2 Voice resources). 8 Ethernet/IEEE 802.3 interface(s) 24 Serial network interface(s) 2 ATM network interface(s) 125K bytes of non-volatile configuration memory.

Checking the Configuration

20480K bytes of Flash PCMCIA card at slot 0 (Sector size 128K). 20480K bytes of Flash PCMCIA card at slot 1 (Sector size 128K). 8192K bytes of Flash internal SIMM (Sector size 256K). Configuration register is 0x100

Using the show diag Command

Display t he ty p e s o f p ort adapters i nst alled in y o ur s y st em (a n d sp eci fic in for m at io n ab ou t each ) u sin g the show diag slot command, wher e slot is th e port adapter slot in Cisco 7200 series rout ers, Cisco 7200 VXR routers, and Cisco 7401ASR routers, and the interfac e p rocess or slot in a Cisco7500series router.

Note The outputs that appear in this document may not match the output you receive when running these

command s. The out pu ts in th is do cu ment are ex amp le s o nl y.

Cisco 7200 Series and Cisco 7200 VXR Routers

Following is an example of the show diag slot command that shows a P A-VXC-2TE1 in port adapter slot 1 of a Cisco 7200 series router:

Router# show diag 1 Slot 1: VXC-2T1/E1 Port adapter, 2 ports Port adapter is analyzed

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Note Port adapt ers used with Cisco 7200 VXR routers require the correct base hardware revis ion in order

Cisco7401ASR Routers

Chapter4 Configuring the PA-VXA, PA-VXB, and PA-VXC

Port adapter insertion time 4d21h ago EEPROM contents at hardware discovery: Hardware revision 1.0 Board revision K0 Serial number 14320311 Part number 73-3861-03 Test history 0x0 RMA number 00-00-00 EEPROM format version 1 EEPROM contents (hex): 0x20: 01 CF 01 00 00 DA 82 B7 49 0F 15 03 00 00 00 00 0x30: A0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

to function. Use the show diag command to display the hardware revision.

Following is an exa mp le of t he s h ow d i ag slot co m m and t hat shows a PA-VXB-2TE1+ port adapter in port adapter slot 1 of a Cisco 7401ASR router:

Router# show diag 1 Slot 1: VXB-2T1/E1+ Port adapter, 2 ports Port adapter is analyzed Port adapter insertion time 4d21h ago EEPROM contents at hardware discovery: Hardware revision 1.0 Board revision K0 Serial number 14320311 Part number 73-3861-03 Test history 0x0 RMA number 00-00-00 EEPROM format version 1 EEPROM contents (hex): 0x20: 01 CF 01 00 00 DA 82 B7 49 0F 15 03 00 00 00 00 0x30: A0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

Cisco 7500 Series Routers

Following is an exa mp le of t he s h ow d i ag slot co m m and t hat shows a PA-VXC- 2TE 1+ in interface processor slot 1 of a Cisco 7500 series router:

Router# show diag 1 Slot 1: Physical slot 1, ~physical slot 0xE, logical slot 1, CBus 0 Microcode Status 0x4 Master Enable, LED, WCS Loaded Board is analyzed Pending I/O Status: None EEPROM format version 1 VIP2 R5K controller, HW rev 2.02, board revision A0 Serial number: 10945159 Part number: 73-2167-05 Test history: 0x00 RMA number: 00-00-00 Flags: cisco 7000 board; 7500 compatible

EEPROM contents (hex): 0x20: 01 1E 02 02 00 A7 02 87 49 08 77 05 00 00 00 00 0x30: 50 00 00 01 00 00 00 00 00 00 00 00 00 00 00 00

Slot database information: Flags: 0x4 Insertion time: 0x288C (3d19h ago)

Controller Memory Size: 128 MBytes DRAM, 8192 KBytes SRAM

PA Bay 0 Information:

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VXC-2T1/E1+ Port adapter, 2 ports EEPROM format version 4 HW rev 0.02, Board revision A0 Serial number: MIC04251WXZ Part number: 73-5340-03

Checking the Configuration

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PA Bay 1 Information: VXC-2T1/E1 Port adapter, 2 ports EEPROM format version 1 HW rev 0.01, Board revision A0 Serial number: 15234366 Part number: 73-3861-03

Using the show interfaces Command

The show interf aces command displays status information (including the physical slot and interface address) f o r th e i nt er faces y o u spe c ify. All o f th e examples t ha t f o ll ow specify D SPfar m i nt er fac es.

For complete descriptions of interface subcommands and the configuration options available for router interface s , r ef er to the p ub li cat io n s li sted i n the “Related Doc umentation” section on page vi ii.

Note The outputs that appear in this document may not match the output you receive when running these

command s. The out pu ts in th is do cu ment are ex amp le s o nl y.

Cisco 7200 Series and Cisco 7200 VXR Routers

Chapter4 Configuring the PA-VXA, PA-VXB, and PA-VXC

Following is an exa mp le of t he s h ow inte rf aces D S Pfarm command for Cisco 7200 series routers. In this example, the PA-VXC-2TE1 port adapter is located in port adapter slot 1.

Router# show interfaces DSPfarm 1/0 DSPfarm1/0 is up, line protocol is up Hardware is VXC-2T1/E1 MTU 256 bytes, BW 12000 Kbit, DLY 0 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set C549 DSP Firmware Version: MajorRelease.MinorRelease (BuildNumber) DSP Boot Loader: 255.255 (255) DSP Application: 3.2 (10) Medium Complexity Application: 3.2 (12) High Complexity Application: 3.2 (12) Total DSPs 29, DSP0-DSP29, Jukebox DSP id 30 Down DSPs: none Restarted DSPs due to background keep-alive failures DSPid(number of restart)e Total sig channels 116 used 48, total voice channels 116 used 0 0 active calls, 24 max active calls, 163554 total calls CHT: 489702 total sec, 2 avg sec, 69 max sec 230728928 rx packets, 0 rx drops, 239246561 tx packets, 0 tx frags 0 curr_dsp_tx_queued, 12 max_dsp_tx_queued Last input never, output never, output hang never Last clearing of "show interface" counters 4d20h Queueing strategy: fifo Output queue 0/0, 0 drops; input queue 0/75, 0 drops 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 228929291 packets input, 574310582 bytes, 0 no buffer Received 0 broadcasts, 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort 239246561 packets output, 626450944 bytes, 0 underruns 0 output errors, 0 collisions, 0 interface resets 0 output buffer failures, 0 output buffers swapped out

Cisco7401ASR Routers

T1/E1 Digital Voice Port Adapter Installation and Configuration

4-40

Following is an example of the show interfaces DSPfarm command for Cisco 7401ASR routers. In this example, th e PA-VXB-2 TE1 + p o rt ad ap ter is lo cat ed in p or t ad ap te r sl o t 1 .

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Router# show interfaces DSPfarm 1/0 DSPfarm1/0 is up, line protocol is up Hardware is VXB-2T1/E1+ MTU 256 bytes, BW 12000 Kbit, DLY 0 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set C549 DSP Firmware Version: MajorRelease.MinorRelease (BuildNumber) DSP Boot Loader: 255.255 (255) DSP Application: 3.2 (10) Medium Complexity Application: 3.2 (12) High Complexity Application: 3.2 (12) Total DSPs 29, DSP0-DSP29, Jukebox DSP id 30 Down DSPs: none Restarted DSPs due to background keep-alive failures DSPid(number of restart)e

Total sig channels 116 used 48, total voice channels 116 used 0 0 active calls, 24 max active calls, 163554 total calls CHT: 489702 total sec, 2 avg sec, 69 max sec 230728928 rx packets, 0 rx drops, 239246561 tx packets, 0 tx frags 0 curr_dsp_tx_queued, 12 max_dsp_tx_queued Last input never, output never, output hang never Last clearing of "show interface" counters 4d20h Queueing strategy: fifo Output queue 0/0, 0 drops; input queue 0/75, 0 drops 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 228929291 packets input, 574310582 bytes, 0 no buffer Received 0 broadcasts, 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort 239246561 packets output, 626450944 bytes, 0 underruns 0 output errors, 0 collisions, 0 interface resets 0 output buffer failures, 0 output buffers swapped out

Checking the Configuration

Cisco 7500 Series Routers

Following is an exa mp le of t he s h ow inte rf aces D S Pfarm command for Cisco 7500 series routers. In this examp le, the PA-VXC-2TE1+ port adap te r is locate d in p or t ad ap ter s l ot 0 o n a VIP m o th er bo ar d installed in in terface p ro cessor slot 1.

Router# show interfaces DSPfarm 1/0/0 DSPfarm1/0/0 is up, line protocol is up Hardware is VXC-2T1/E1-PLUS MTU 256 bytes, BW 12000 Kbit, DLY 0 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation VOICE, loopback not set C549 DSP Firmware Version: MajorRelease.MinorRelease (BuildNumber) DSP Boot Loader: 3.4 (1) DSP Application: 3.2 (10) Medium Complexity Application: 3.4 (25) High Complexity Application: 3.4 (25) Total DSPs 30, DSP0-DSP29, Jukebox DSP id 30 Down DSPs: none DSPs restarted: none Total sig channels 120 used 47, total voice channels 120 used 24 24 active calls, 47 max active calls, 1196 total calls CHT: 3566 total sec, 2 avg sec, 33 max sec 0 curr_dsp_tx_queued, 22 max_dsp_tx_queued Last input 00:00:00, output 00:00:00, output hang never Last clearing of "show interface" counters never Queueing strategy: fifo Output queue 0/40, 0 drops; input queue 0/75, 0 drops 5 minute input rate 85000 bits/sec, 65 packets/sec 5 minute output rate 75000 bits/sec, 65 packets/sec

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5651409 packets input, 683571491 bytes, 0 no buffer Received 0 broadcasts, 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort 5698903 packets output, 586641447 bytes, 0 underruns 0 output errors, 0 collisions, 0 interface resets 0 output buffer failures, 0 output buffers swapped out

Proceed to “Usin g loop back Com man ds” section on page 4-42 to check ne tw or k co nn ec tivi ty o f t h e PA-VXB or PA-VXC and the switch or router.

Using l oopb ack Commands

With the loopback test, you can detect and isolate equipment malfunctions by testing the connection between the PA-VXA, PA-VXB, or PA-VXC interface and a remote device such as a modem or a CSU/DSU. The loopback subcommand places an interface in loopback mode, which enables test packets that are generated from the ping command to lo op t hr o ug h a remote devic e o r co m p act ser i al cable. If th e pa cket s co mp lete the loop, t he co nn ec ti on i s goo d. I f no t, yo u can isolat e a fault t o th e remote device or comp ac t s e ri al cab le in the p ath o f th e loopback test.

Depending on the mode of the port, issuing the loopback comm and ch ecks the following pa t hs:

Chapter4 Configuring the PA-VXA, PA-VXB, and PA-VXC

• When no compac t ser ial cable is at tached to th e PA-VXB or PA-VXC interface por t, o r i f a D C E

cable is att ached to a p o rt th at is configur ed as l in e p r ot o co l u p , th e loopback command tests the path bet ween the netwo rk pr ocessi ng engi ne and t he in terfac e port o nly (wi thout l ea ving the netwo rk proces s ing eng i ne and po rt adapt er ).

• When a DTE cable is attached to the port, the loopback command tests the path between the network

processing engine and the near (network proc essing engine) side of the DSU or modem to test the PA - VXB or PA-VXC inter fac e a nd co m p ac t serial cab le .

T1 Loopback Examples

Specif y loo pb ack for a T1 c on tro lle r an d T 1 chan nel us ing th e loopback command. There are three main loopbac k modes: di agnos tic, l ocal (lin e and pay load) , and remo te (IBOC a nd ESF). S pecify the loopback format u s in g th e loopback [diagnostic | local | remote] command.

Note To shut down the T1 controller, use the shutdown command at the controller prompt.

Examples of specific loopback modes for the T1 controller follow:

• The syntax o f th e loopback diagnostic command is as follows:

loopback [diagnostic]

Set the first T1 into diagnostic loopback. Cisco 7200 Series Routers:

Router# config t Enter configuration commands, one per line. End with CNTL/Z. Router(config)# controller t1 2/0 Router(config-controller)# loopback diagnostic

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Cisco 7401ASR Routers:

Router# config t Enter configuration commands, one per line. End with CNTL/Z. Router(config)# controller t1 1/0 Router(config-controller)# loopback diagnostic

Cisco 7500 Series Routers:

Router# config t Enter configuration commands, one per line. End with CNTL/Z. Router(config)# controller t1 2/2/0 Router(config-controller)# loopback diagnostic

In the pre ced in g exa m p les, th e loopback diagnostic command loops the outgoing transmit signal back to t he r eceive signal a nd sends an alarm in di cat io n s ig na l ( AI S ) to th e ne tw or k .

• The syntax o f th e loopback local comman d i s as fo ll ows:

loopback [local {payload | line}]

Set the fi rst T1 into lo cal lo o pb ack. Cisco 7200 Series Routers:

Router# config t Enter configuration commands, one per line. End with CNTL/Z. Router(config)# controller t1 2/0 Router(config-controller)# loopback local payload

Checking the Configuration

Cisco 7401ASR Routers:

Router# config t Enter configuration commands, one per line. End with CNTL/Z. Router(config)# controller t1 1/0 Router(config-controller)# loopback local payload

Cisco 7500 Series Routers:

Router# config t Enter configuration commands, one per line. End with CNTL/Z. Router(config)# controller t1 2/2/0 Router(config-controller)# loopback local payload

In the pre ced in g exa m p les, th e loopback local payload command lo op s t he incomi ng signal b ack to the line.

• The syntax o f th e loopb a ck remote com mand f ol lows:

loopback [remote {esf line | iboc | esf payload}]

Set the first T1 into remote line inband loopback. Cisco 7200 Series Routers:

Router# config t Enter configuration commands, one per line. End with CNTL/Z. Router(config)# controller t1 2/0 Router(config-controller)# loop remote esf line

Cisco 7401ASR Routers:

Router# config t Enter configuration commands, one per line. End with CNTL/Z. Router(config)# controller t1 1/0 Router(config-controller)# loop remote esf line

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Cisco 7500 Series Routers:

Router# config t Enter configuration commands, one per line. End with CNTL/Z. Router(config)# controller t1 2/2/0 Router(config-controller)# loop remote esf line

This com m an d cau ses th e f ar en d to lo o p its receive sign al b ack t o tr an s mit .

E1 Loopback Examples

Specify loopback for an E1 controller using the loopback command. Ther e are two main loop back modes: diagnostic and local (line and payload). Specify the loopback format using the loopback [diagnostic | local] comman d.

Note To shut down the E1 controller, use the shutdown command at the controller prompt.

Examples of specific loopback modes for the E1 controller follow:

• The syntax o f th e loopback diagnostic command is as follows:

loopback [diagnostic]

Chapter4 Configuring the PA-VXA, PA-VXB, and PA-VXC

Set the first E1 into diagnostic loopback. Cisco 7200 Series Routers:

Router# config t Enter configuration commands, one per line. End with CNTL/Z. Router(config)# controller E1 2/0 Router(config-controller)# loopback diagnostic

Cisco 7401ASR Routers:

Router# config t Enter configuration commands, one per line. End with CNTL/Z. Router(config)# controller E1 1/0 Router(config-controller)# loopback diagnostic

Cisco 7500 Series Routers:

Router# config t Enter configuration commands, one per line. End with CNTL/Z. Router(config)# controller E1 2/2/0 Router(config-controller)# loopback diagnostic

In the pre ced in g exa m p les, th e loopback diagnostic command loops the outgoing transmit signal back to the receive signal and sends an AIS out to the network.

• The syntax o f th e loopback local comman d i s as fo ll ows:

loopback [local {payload | line}]

Set the fi rst E1 into lo cal lo o pb ack. Cisco 7200 Series Routers:

Router# config t Enter configuration commands, one per line. End with CNTL/Z. Router(config)# controller E1 2/0 Router(config-controller)# loopback local payload

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Cisco 7401ASR Routers:

Router# config t Enter configuration commands, one per line. End with CNTL/Z. Router(config)# controller E1 1/0 Router(config-controller)# loopback local payload

Cisco 7500 Series Routers:

Router# config t Enter configuration commands, one per line. End with CNTL/Z. Router(config)# controller E1 2/2/0 Router(config-controller)# loopback local payload

In the preceding examples, the loopback local command loops the incoming signal back to the line.

Checking the Configuration

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Chapter4 Configuring the PA-VXA, PA-VXB, and PA-VXC

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Cisco PA-VXA Series, PA-VXA-1TE1-24, PA-VXA-1TE1-30, PA-VXB Series, PA-VXB-2TE1 Installation And Configuration Manual

T1/E1 Digital Voice Port Adapter Installation and Configuration

CONTENTS

Preface

Objectives

Organization

Related Documentat ion

Obtaining Documentation

Cisco.com

Documen t at i on CD-ROM

Orderi ng D ocum entation

Documentat i on Feedback

Obtaining Technical Assist ance

Cisco.com

Technical A ssi stance Center

Cisco TAC Website

Obtaining Ad di tio n al Pub lic a tio ns an d Infor ma tio n

Cisco TAC Escalation Center

Overview

Port Adapter Overview

Features

LEDs

Cables, C onnectors, and Pinouts

Port Adapter Slot Locations on the Su pported Platforms

VIP Slo t Num bering

Identifying Inter fa ce Addr esses

Cisco 7500 S eri es Routers In terf ace Addresses

Preparing for Installation

Required Tools and Equipment

Software and Hardware Requirements

Chec ki n g Hardwar e an d S o ftw are Compa t ib ility

Safety G u idelines

Safety Warnings

Electric al Equipment Guidelines

Telephone Wiring Guidel i nes

FCC Class A Complia nce

Preventi ng Electrostatic Disc harge Damage

Handling Port Adapters

Online Insertion and Removal

Warnings and Cautions

Chassis Warning—Disconnecting Tel ephone-Network Cables

Lightning Activity Warning

Service Personnel Warnin g

No. 26 AWG Warn ing

Customer Equi pment Warning

Port Ada p te r Re mo v a l a n d In stallat io n

Cisco 7200 S eries —Removing and Installing a Port Adapter

Cisco 7500 Series—Removing and Installing an Interface Proc esso r

VIP—Removing and Installing a Port Adapter

Connecting Inter face Cabl es

Configuring the PA-VXA, PA-VXB, and PA-VXC

Using the EXEC Command Interpreter

Configurin g th e Interface

Shutting Down a Controller

Performing a Basic Configuration

Specifying Card Type is Required

Configur in g Voic e ove r IP

Prerequisi t e Tasks

How VoIP Handles a Typical Telephone Call

Configu rat i on Tasks

Configure IP Networks for Real-Time Voice Traffic

Configure RSVP for Voice

Enable RSVP

RSVP Configuration Example

Configure Multilink PPP with Interleaving

Enable Multilin k PPP with Inte r le aving

Multilink PPP Conf igur at io n Exa mple

Config ur e RTP Header Compr es sion

Enable RTP Header Compression on a Serial Interface

Change the Number of Header Compression Connections

RTP Header Compression Configuration Example

Config ure Custom Queuing

Configure Weighted Fair Queuing

Configur e N um ber Expansion

Create a Numbe r Expansion Table

Expand a Number

Configur e D i al Peers

Inbound Versus Outbound Dial Pe er s

Create a Peer Configuration Table

Config ur e POTS Peers