Cisco Systems MGX 8230 User Manual

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Cisco MGX 8230 Edge Concentrator Installation and Configuration

Release 1.1.31 May 2001

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THE SPECIF ICA TIONS AND INF ORM AT IO N REGARDING TH E P ROD U CTS IN T HI S M AN UAL A R E S U BJE CT TO C H ANGE W ITH O UT NOTICE. ALL STATEMENTS, INFORMATION, AND RECOMMENDATIONS IN THIS MANUAL ARE BELIEVED TO BE ACCURATE BUT ARE PRESENTED WITHOUT 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 informati on is for F CC compli an ce of Class A device s: This eq uipment has been teste d and found t o co mply wit h the limits for a Class A digital device, pursuant to pa rt 15 of th e FCC rul es. Thes e limits ar e design ed to prov ide re asona ble prote cti on agai nst harmf ul i nt erferenc e when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio-frequency energy and, if not installed and used in accordance with the inst ruction ma nua l, may ca use harmf ul interfer ence to ra dio com muni cations. Oper atio n of this e quipme nt in a resident i al area is likely to cause harmful interfe rence , in whi ch case users will be require d to corr ect the int erfer ence a t their own expen se.

The following information is for FCC compliance of Class B devices: The equipment described in this manual generates and may rad i at e radio-fre q uency energy. If it is not installed i n accor dance wi th Cisco’ s install ati on ins tructi ons, it may caus e interfere nce wit h ra dio and telev ision re cept ion. T his equipmen t has bee n teste d and fo und to co mply with the limits f or a Cla ss B di gital device in acco rdan ce with th e spec ific atio ns in part 15 of the FCC rules. These specifications are designed to provi de reason able pr otec tion agains t su ch interf erenc e in a resid ential installati on. Ho we ver, there i s no gu a r an tee 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 tha t event, your right to use the equipme nt may be limited by FCC re gulati ons, and you may be re quired to correct any interference to radio or tele vision c ommun icati ons at your o wn e xpense.

You can determine whether your equipment is causing interference by turning it off. If the interference stops, it was probably caused by the Cisco equipment or one of its peripheral devices. If the equi pment caus es int erferenc e to rad io or televi sion recepti on, try to correc t the inte r fe rence by using one or more of the following measures :

• 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 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 diff erent circ uit break ers or fuses.)

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 implementation of TCP header compression is an adaptation of a program developed by the University of California, Berkeley (UCB) as part of

UCB’s public domain version of t he UNIX oper atin g system. All rig hts reser ved. Copy ri ght © 1981 , Regen ts of the Unive rsi ty of Cal iforni a. NOTWITHS TA NDI NG AN Y OT HER WARR AN TY HE REI N, ALL D OCUM ENT F IL ES AND SOF TWA R E OF TH ES E SU PPLIE RS A RE PR O VIDE D

“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 NONINF R I NGEMEN T OR A R IS I N G F R O M A COURS E OF DEALI N G, U S AGE, OR T RADE PRA C TIC E.

IN NO EVENT SHALL CISCO OR ITS SUPPLIERS BE LIABLE FOR ANY INDIRECT, SPECIAL, CONSEQUENTIAL, OR INCIDENTAL DAMAGES, INCL UD IN G , WI TH OU T LI MITATION, LO ST P R OFIT S OR LO S S O R DA M AG E TO DATA ARISING OU T O F TH E USE OR INABILITY TO USE THIS MANUAL, EVEN IF CISCO OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.

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Cisco MGX 8230 Edge Concentrator In stall ation an d Configuration

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Preface xxi

Audience xxi Organization xxi Related Documentation xxii

MGX 8230 Edge Concentrator, Release 1.0 Related Documentation xxii Cisco WAN Manager, Release 10, Related Documentation xxiii

Cisco WAN Switching Software, Release 9.3 Related Documentation xxiii Conventions xxiv Obtaining Documentation xxv

World Wide Web xxv

Document ation C D-R OM xxv

Ordering Documentation xxv

Document ation Fe edb ack xxvi

CHAPTER

Obtaining Technical Assistance xxvi

Cisco.com xxvi

Technical Assistance Center xxvii

Contacting TAC by Using the Cisco TAC Website xxvii Contacting TAC by Telephone xxvii

1 Introducing the MGX 8230 1-1

MGX 8230 System Overview 1-2

The Applications of the MGX 8230 1-3

As a feeder 1-3 As a Stand-Alone Switch 1-3 Multiprotocol Label Switching (MPLS) 1-3 Consolidation of Cisco CPE Traffic 1-3

Multiservice Stand-alone Concentrator 1-3 Universal Edge Architecture 1-3 Standards-Based Conversion to ATM 1-4 MGX 8230 Enclosure and Power 1-4

Slot Numbering and Placement 1-4

Single Height and Double Height Slots 1-5

MGX 8230 Power System 1-6

Optional AC Power Supply 1-6

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Contents

DC-Powered MGX 8230 1-7

Cooling System 1-8

MGX 8230 Architecture 1-9 Cell Bus 1-10

MGX 8230 Management 1-11

Summary of MGX 8230 Cards and Modules 1-12

Introduction to Core Card Sets and Service Modules 1-12 Processor Switching Module (PXM1) 1-12 User Interface Back Cards 1-13 Service Resource Module (SRM) 1-14 Frame Relay Service Modules (FRSM) 1-14 ATM UNI Service Modules (AUSM) 1-14 Circuit Emulation Service Modules (CESM) 1-15 Voice Service Modules (VISM) 1-15 Route Processor Module (RPM) 1-15

Redundancy for Service Modules 1-16

1:1 Redundancy 1-16 Hot Standby 1-16 1:N Redundancy 1-16

CHAPTER

2 Module and Service Descriptions 2-1

Processor Switching Module 2-1

PXM1 Features 2-2 PXM1 Illustration and LED Description 2-2 PXM1 User Interface Back Cards 2-3

PXM1-UI (standard) 2-3 PXM-UI-S3 (optional) 2-4

Making Extern al Cloc k Conne ctio ns 2-4

Stratum 4 clocking 2-4 Stratum 3 clocking 2-4

PXM1 Back Cards 2-5

PXM1 User Interface Back Cards 2-5 SMFLR-1-622 Back Card 2-7 SMFIR-1-622 Back Card 2-8 SMF-155 Back Card 2-9 BNC-2T3 Back Card 2-10 BNC-2E3 Back Card 2-11

Service Resource Module 2-12

Bit Error Rate Testing 2-12

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1:N Service Module Redundancy 2-12 Bulk Distribution Mode 2-12 Module Requirements with Bulk Distribution and Redundancy 2-13 Installation Requirements for the MGX-SRM-3T3/C 2-13 SRM Illustration and LED Indicators 2-13

ATM UNI Service Module (AUSM) 2-15

AUSM Features 2-15

Quality of Service (QoS) Management 2-15

Inverse Multiplexing 2-15

Physical Layer Features 2-16 AUSM Front Card Illustration and LED Description 2-17 Back Cards for the AUSM/B 2-18

Frame Relay Servic e Mod ule s 2-20

Features Common to All FRSMs 2-20

Data -L i n k Layer fea t ur e s 2-20

Frame Relay features 2-20

ATM FUNI features 2-21

Frame Forwarding Features 2-21 Redundancy for Frame Service Modules 2-22

Hot Standby 2-22

1:1 Redundancy 2-22

1:N Redundancy 2-22 Connection Types on the FRSM 2-22

Frame Relay-to-ATM Network Interworking 2-23

Frame Relay-to-ATM Service Interworking 2-24

Frame Forwarding 2-26

ATM Frame-to-User Network Interface 2-26 Types of Frame Servi ce Modul es 2-27

FRSMs for T1 and E1 Lines 2-27

FRSMs for T3 and E3 lines 2-32

FRSMs for Serial Connections 2-38 Circuit Emulation Service Modules 2-45

CESM for T1 and E1 lines 2-45

CESM T1 and E1 Features 2-45

CESM for T3 and E3 lines 2-50 Voice Service: The VISM 2-55

VISM Documentation 2-55

Summary of Features Supported with VISM 2.0.1 2-55

VISM Redundan cy 2-57

Card Combinations 2-57

Contents

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Contents

VISM Card Illustrations and LED Description 2-58

Route Processor Module (RPM) 2-61

RPM Documentation 2-61

CHAPTER

3 Site Preparation 3-1

Parts Checklist 3-1 Site Preparation 3-1 Regulatory Compliance and Safety Information 3-3

Safety Recommendations 3-3

Maintaining Safety with Electricity 3-3

Warning Definition 3-4 Product Dispo sal Warn ing 3-5 Lightning Activity Warning 3-7 Jewelry Removal Warning 3-8 Power Supply Warning 3-9 Power Supply Disconnection Warning 3-10 Power Disconnection Warning 3-11 Grounded Equipment Warning 3-12 Installation Warning 3-12 Class 1 Laser Product Warning 3-13

Laser Beam Warning 3-13

Seismic Conside r ations 3-14

CHAPTER

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Seismic Anch oring fo r a Cisco Rack 3-14 Power and Grounding 3-17

AC Power Circuit Breakers 3-17 DC Power Circuit Breakers 3-17 Electrical Power for AC-Powered Nodes 3-17 Electrical Power for a DC-Powered MGX 8230 3-17 Bonding and Grou ndin g 3-18

Wiring a Mixed Ground System with Redundant Supplies 3-18

Conductor Characteristics for Carrying Current and Ensuring L o w Voltage Dr ops 3-20 Using the Electrostatic Wrist Strap 3-21 Co-Locating Cisco Units in the Same Rack 3-21 Making the Frame Bonding (Ground) Connection 3-21

Making Cisco Cabin et Ground Co nne ctio ns 3-22

4 Enclosure Installation 4-1

Chapter Summ ary 4-1

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Mechanical Lift Guidelines 4-1 Installing a Stand-Alone MGX 8230 4-2 Rack Mounting an MGX 8230 4-2

Prepare for Rack Installation 4-3

Rack Positioning 4-3 Bracket Place men t 4-3 Mounting Kits 4-4

Install the MGX 8230 Using a Mechanical Lift (Recommended) 4-6

Rack Mounting Procedures for 19-Inch Racks (Mechanical Lift) 4-6 Rack Mounting Procedures for 23-Inch Racks (Mechanical Lift) 4-6

Install the MGX 8230 Without a Mechanical Lift (Optional) 4-7

Prepare for Installation 4-7 Remove the Front Cards 4-7 Remove the Back Cards 4-8 Rack Mount the MGX 8230 chassis 4-8 Re-install the front cards 4-10

Re-install the bac k cards 4-10 Connecting Power for DC Systems 4-11 Connecting Power for AC Systems 4-14

Installing AC Power Supply Modules in the AC Power Supply Tray (optional) 4-15

Making the Connections to the AC Power Supply Module(s) 4-15 Install the Cable Manager 4-17 Power up the MGX 8230 4-18

Contents

CHAPTER

5 Configuring the MGX 8230 Shelf 5-1

Summary of Shelf-Level Tasks 5-1 User Interface Access Ports 5-2

Control Port 5-2

Ethernet Port 5-2

Maintenanc e Port 5-3

Other Ports 5-3

IP-Based Applications 5-3

MGX 8230 MGX to BPX Feeder 5-3

Initial MGX 8230 Bring-Up 5-3

Bringing Up an MGX 8230 PXM With No Run-time Firmware 5-4 Configuring N ode -Leve l Para meters 5-6

Resource Partitioning 5-6

Downloading Firmware to a Service Module 5-9

MGX 8230 CLI Configuration of a Feeder 5-10

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Configuring th e OC-3 Upl ink 5-10 Establishing the BPX 8600-to-BPX 8600 Series Segment 5-12

CiscoView Configuration of a Feeder 5-13

Selecting an MGX 8230 5-13 Specifying the Feeder Application 5-14 Activating a Physical Line for the Uplink 5-14 Configuring Lo gical Int erf aces for the Feeder 5-15 Configuring the Line as a Feeder Trunk 5-16

CHAPTER

6 Card and Service Configuration 6-1

Connections on a Feeder 6-1 Modifying the Resource Partitioning 6-1 Sequence of Config ur ation Tas ks 6-2 Rules for Adding Connections 6-2

Rules for Adding a DAX Connection 6-2 Rules for Adding Three-Segment Connections 6-3

The Processor Switching Module 6-5

Configuring Syn ch roniz at ion for the She lf 6-5

Clock Sources 6-5 Clock Source Types 6-6 Clock Source Configuration 6-6

Configurat ion Exam ple 6-6 Configuring PXM1 Card-Level Parameters, Lines, and Ports 6-7 Automatic Protection Switching on the PXM1 6-9

APS Requireme nt s 6-9

APS Configuration 6-9 Adding Connections on a PXM1 in a Stand-Alone Node 6-10

ATM Universal Service Module (AUSM) 6-14

Summary of AUSM Features 6-14 Configure the Card, Lines, and Ports 6-15 Configure Inverse Multiplexing 6-17 Adding and Configuring Connections on the AUSM/B 6-17

BPX 8600-to-BPX 8600 Segment 6-23

Frame Service Module Features 6-23

Summary of Frame Service Module Features 6-24

MGX-FRSM-2CT3 Features 6-25

MGX-FRSM-2T3E3 Features 6-25

MGX-FRSM-HS2 Features 6-26

MGX-FRSM-HS1/B Features 6-26

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Eight-Port FRSM Features 6-27

Configuring Frame Relay Service 6-27

Configuring the FRSM Cards, Lines, and Ports 6-28 Adding a Frame Relay Connection 6-31 Establishing the BPX 8600-to-BPX 8600 Series Segment 6-36 Test Commands for the FRSMs 6-36 Support for Alarm Reportin g 6-37 Bit Error Rate Testing on an Unchannelized T3 or E3 FRSM 6-37

Circuit Emulation Service Module for T3 and E3 6-38

Features 6-38

Cell Delay Treatment 6-38 Error and Alarm Response 6-39

Configuring Service on a T3 or E3 CESM 6-39

Configuring the Card, Lines, and Ports 6-40 Adding and Modifying Connections 6-40

Bit Error Rate Testing on a T3 or E3 CESM 6-42

Contents

Eight-Port Circu it Emu lation Servic e Modu les 6-42

Structured Data Transfer 6-43 Unstructur ed Data Tr ansf er 6-43 Cell Delay Treatment 6-44 Redundancy Support for the Eight-Port CESM 6-44 Error and Alarm Response 6-44 Configuring Service on an Eight-Port CESM 6-45

Configuring the Card, Lines, and Ports 6-45 Configuring Bulk Distribution and Redundancy 6-46 Adding and Modifying Connections 6-47

Service Resource Module 6-49

Configuring Card and Line Parameters 6-49 Bulk Distribution for T1 Service 6-50 Redundancy Support by the MGX-SRM-3T3/C 6-51

Configuring Redundancy Through the Redundancy Bus 6-51 Configuring Redundancy Through the Distribution Bus 6-52

Bit Error Rate Testing Through an MGX-SRM-3T3 6-53

Pattern Test Options 6-55 Loopback Test Options 6-56

Online Diagnostics test 6-56

Automatic Switchover 6-56 Alarms 6-56 Log Files 6-57

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Commands to Operate the Online Diagnostics 6-57

DS3 Loopback Test 6-58

Loopback Tests 6-58

Configure Loopback on the Entire DS3 Line 6-58

Configure Loopback on All DS1s in a DS3 Line 6-59

Receive a Loopback Request 6-59 Configure Transmit FEAC Code 6-60

Configure DS3 for Sending Looped or Normal Data 6-60

Configure DS3 to Send Line Loopback 6-60

Configure DS3 for Sending Loopback Deactivation Request 6-61 Configure Receive Validation FEAC Code 6-61

Configuring FEAC Validation Criteria to be FEACCodes4Of5 6-61

Configure FEAC Validation Criteria to be FEACCodes8Of10 6-62 Negative Tests 6-62

Disable FEAC Cod es 6-62

Configure DS3 Loopback Codes from t he Standby PXM1 Card 6-63

APPENDIX

A Technical Specifications A-1

MGX 8230 Enclosure, Power, and Performance Specifications A-1 MGX 8230 Processor Switching Module Specifications A-3 AUSM/B-8T1E1 Interface Characteristics A-6 FRSM-2CT3 Specifications A-9

FRSM-2CT3 Framer A-10 FRSM-2CT3 Line Alarms A-10

FRSM-2T3E3 Specifications A-10

FRSM-2T3E3 T3 Line A-11 T3 Framer Level A-11 FRSM-2T3E3 E3 Line A-12 E3 Framer Level A-12 FRSM-2T3E3 Line Alarms A-12 Statistics and Counter Specifications A-12

FRSM-HS2 Sp ecif ication s A-12 Counters and Statistics for FRSM-2C T3, FRSM-2T3E3, and FRSM-HS2 A-14 FRSM-HS1/B X.21 A-16

Interfaces A-16

xii

FRSM-8T1 Specification A-17 FRSM-8E1 Specification A-20 Circuit Emulation Service Module for T1 Operation A-24

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Circuit Emulation Service Module for E1 Operation A-25 Physical and Electrical Characteristics for Cards A-27 Electromagnetic Compatibility A-27 Conformance A-28

ATM UNI A-28 SONET/SDH A-29 Frame Relay A-29 Circuit Emulations Service A-29 Safety A-30 Environmental A-30

Contents

APPENDIX

GLOSSARY

B Cable Specifications B-1

T3 Trunk Cabling B-1 Frame Relay Cablin g B-2

T1 Cabling B-2 E1 Cabling B-3

SMB Connector B-3 12IN1-S4 V.35/X.21 Back Card B-4 HSSI Port Connectors B-5

DC Power Cabling B-6 AC Power Cabling B-7 Control and Clock Cabling B-7

Maintenance and Control Ports B-7 External Clock Input Cabling B-8

T1 Clock Cabling B-8

External Alarm Cabling B-8

INDEX

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Figure 1-1 MGX 8230 with Door Attached 1-2 Figure 1-2 MGX 8230 Slot Placement 1-5 Figure 1-3 MGX 8230 Card Cage, Front View 1-6 Figure 1-4 AC Power Supply Module, Rear View 1-7 Figure 1-5 MGX 8230 DC Power Entry Module 1-8 Figure 1-6 MGX 8230 Fan Tray Assembly 1-9 Figure 1-7 MGX 8230 Architecture Simple Block Diagram 1-10 Figure 1-8 Cell Bus Distribution 1-11 Figure 2-1 PXM1 Front Card 2-3 Figure 2-2 User Interface Back Card (PXM1-UI) 2-5 Figure 2-3 User Interface Back Card (PXM-UI-S3): Stratum 3 Clocking 2-6

FIGURES

Figure 2-4 OC-12 Long-Reach Back Card (SMFLR-1-622/B) 2-7 Figure 2-5 OC-12 Intermediate-Reach Back Card (SMFIR-1-622/B) 2-8 Figure 2-6 OC-3 Four-P or t Back Ca rd (S M F- 1 5 5 / B ) 2-9 Figure 2-7 Two-port T3 Back Card (BNC-2T3) 2-10 Figure 2-8 Two-port E3 Back Card (BNC-2E3) 2-11 Figure 2-9 MGX-SRM-3T3/C Card Set 2-14 Figure 2-10 AUSM/B-8T1 or AUSM/B-8E1 Front Card 2-17 Figure 2-11 RJ-48 and SMB Back Cards for the MGX-AUSM-8T1E1/B 2-19 Figure 2-12 BPX 8620 Network with NIW Connections 2-23 Figure 2-13 BPX 8600 Series Network with SIW Connections 2-24 Figure 2-14 MGX-FRSM-8T1 2-30 Figure 2-15 RJ-48 and SMB Back Cards for the MGX-FRSM-8T1/E1 2-31 Figure 2-16 MGX-FRSM-2CT3 2-34 Figure 2-17 MGX-FRSM-2T3E3 2-35 Figure 2-18 BNC-2T3 2-36 Figure 2-19 BNC-2E3 2-37 Figure 2-20 MGX-FRSM-HS2 2-41 Figure 2-21 MGX-FRSM-HS1/B Front Card Faceplate 2-42 Figure 2-22 SCSI2-2HSSI 2-43 Figure 2-23 12IN1 S4 Back Card Faceplate 2-44

Cisco MGX 8230 Edge Concentrator Installation and Configuration

Release 1.1.31, Part Number 78-11215-03 Rev. B0, May 2001

Figures

Figure 2-24 Front Cards for the Eight-Port CESM 2-48 Figure 2-25 RJ-48 and SMB Back Cards for the MGX-CESM-8T1E1 2-49 Figure 2-26 CESM-T3/E3 Front Card 2-52 Figure 2-27 BNC-2T3 Back Card for the CESM-T3/E3 2-53 Figure 2-28 BNC-2E3 Back Card for the CESM-T3/E3 2-54 Figure 2-29 VISM Front Cards 2-59 Figure 2-30 VISM Back Cards 2-60 Figure 3-1 Stability Plate Dimensions 3-15 Figure 3-2 Installing a Cisco Cabinet Over the Stability Plate 3-16 Figure 3-3 Mixed Grounding System 3-19 Figure 3-4 Frame Bonding Connection in Cisco-Supplied Rack 3-23 Figure 4-1 MGX 8230 Mounting Rail Positions 4-3 Figure 4-2 MGX 8230 Chassis with Rear Mounting Brackets for 19-Inch Rack 4-5 Figure 4-3 MGX 8230 Chassis Front View with 19-Inch Mid-Mounting Bracket 4-5 Figure 4-4 Front Card Insertion/Extractor Lever 4-7 Figure 4-5 Front View of MGX 8230 with 23-Inch Mid-Mounting Brackets 4-9 Figure 4-6 Rear View of MGX 8230 with Two D C PEMs 4-11 Figure 4-7 Rear View of MGX 8230 with 1 DC PEM 4-12 Figure 4-8 DC Power Entry Module, Rear View 4-12 Figure 4-9 Polarities at MGX 8230 PEM Pluggable Terminal Block 4-13 Figure 4-10 Pluggable Terminal Bloc k on MGX 8230 PE M 4-13 Figure 4-11 Optional 1200 Watt AC Power Supply Module, Rear View 4-14 Figure 4-12 Rear View of MGX 8230 with Two Optional AC Power Supply Modules 4-16 Figure 4-13 Rear View of MGX 8230 with One AC Power Supply Module 4-17 Figure 4-14 Cable Management System on Rack-Mount MGX 8230 4-18 Figure 5-1 MGX 8230 MGX Feeder Application 5-3 Figure 6-1 Frame Relay Connection Through an MGX 8230/BPX Network 6-4 Figure B-1 RJ-48 Connectors B-3

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Table 1 MGX 8230 Edge Concentrator Related Documentation xxii Table 2 Cisco WAN Manager Release 10 Related Documentation xxiii Table 3 Cisco WAN Switching Release 9.3 Related Documentation xxiii Table 1-1 Cell Bus Distribution 1-11 Table 2-1 LED Indicators for the SRM-3T3/C 2-13 Table 2-2 Line Redundancy LED Indicators for the SRM-3T3/C 2-13 Table 2-3 Eight-Port AUSM/B LED Indicators 2-18 Table 2-4 Card Level LED Indicators for the FRSM T1/E1 2-28 Table 2-5 Line Level LED Indicators for the FRSM T1/E1 2-29 Table 2-6 Card Level LED Indicators for the FRSM-2T3E3 2-33 Table 2-7 Line Level LED Indicators for the FRSM-2T3E3 2-33

TABLES

Table 2-8 Card Level LED Indicators for the FRSM-HS1/B and the FRSM-HS2 2-39 Table 2-9 Line Level LED Indicators for the FRSM-HS1/B and the FRSM-HS2 2-39 Table 2-10 12IN1-S4 Back Card Cable Types 2-39 Table 2-11 Cabling and Clock Sources for the MGX-FRSM-HS1/B 2-39 Table 2-12 Cabling Types and Part Numbers X.21 and V.35 2-40 Table 2-13 LED Indicators for Eight-Port CESM 2-46 Table 2-14 LED Indicators for T3/E3 CESM 2-51 Table 2-15 LED Indicators for VISM 2-58 Table 3-1 Ground Point Descriptions for Mixed Grounding 3-19 Table 3-2 Wire Gauge for Current Loads Over Copper Wire Lengths 3-20 Table 3-3 Resistance for Each Gauge of Copper Wire 3-21 Table 6-1 Policing Definitions According to Policing and Connection Type 6-12 Table 6-2 Supported Lines Rates on the MGX-FRSM-HS1/B 6-28 Table 6-3 CESM Errors and Ala rms 6-39 Table 6-4 CESM Errors and Ala rms 6-44 Table 6-5 Pattern Test for AX-FRSM-8T1, AX-CESM-8T1, and MGX-FRSM-2CT3 6-54 Table 6-6 Loopback Test for AX-FRSM-8T1, AX-CESM-8T1, and MGX-FRSM-2CT3 6-54 Table 6-7 Pattern Test for AX-FRSM-8E1 and AX-CESM-8E1 6-54 Table 6-8 Loopback Test for AX-FRSM-8E1 and AX-CESM-8E1 6-54 Table 6-9 Pattern Test for MGX-AUSM-8T1 6-54

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Tables

Table 6-10 Loopback Test for MGX-AUSM-8T1 6-55 Table 6-11 Pattern Test for MGX-AUSM-8E1 6-55 Table 6-12 Loopback Test for MGX-AUSM-8E1 6-55 Table A-1 Enclosure and Electrical Characteristics A-2 Table A-2 PXM Specifications A-3 Table A-3 Physical Characteristics of the AUSM/B-8T1E1 A-6 Table A-4 T1 Interface Characteristics A-6 Table A-5 E1 Interface Characteristics A-7 Table A-6 ATM Interface Characteristics A-7 Table A-7 AUSM/B-8T1E1 Statistics and Counters A-8 Table A-8 Frame Relay Interface Standards A-9 Table A-9 FRSM-2CT3 Front Card Physical Characteristics A-9 Table A-10 FRSM-2CT3 Line Level A-9 Table A-11 Frame Relay Interface Standards A-10 Table A-12 FRSM-2T3E3 Front Card Physical Characteristics A-11 Table A-13 T3 Line Level A-11 Table A-14 E3 Line Level A-12 Table A-15 Frame Relay Interface Standards A-13 Table A-16 FRSM-HS2 Physical Characteristics A-13 Table A-17 FRSM-HS2 Line Characteristics A-13 Table A-18 Counters per Line A-14 Table A-19 Service-Related Statistics A-14 Table A-20 ATM Cell-Related Statistic s A-15 Table A-21 Diagnostic-Related Statistics A-16 Table A-22 Troubleshooting Statistics A-16 Table A-23 General Card Specifica tio ns A-17 Table A-24 Frame Relay Service With T1 Lines A-17 Table A-25 System Interface A-18 Table A-26 List of Counters A-19 Table A-27 General Card Specifica tio ns A-20 Table A-28 Frame Relay Service With E1 Lines A-21 Table A-29 System Interface A-22 Table A-30 List of Counters A-23 Table A-31 CESM 8T1 Card Information A-24 Table A-32 CESM 8E1 Card Set Details A-25

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Table A-33 Physical Characteristics and Power Consumption by Card A-27 Table A-34 Electromagnetic Compatibility and Immunity A-27 Table B-1 Trunk Cables B-1 Table B-2 T3 Connec tor Pin Ass ignm en ts B-1 Table B-3 RJ-48C T1/E1 Connector Pin Assignments B-2 Table B-4 E1 Trunk/Circuit Line Cabling Specification B-3 Table B-5 E1 Connec tor Pin Ass ignm en ts (unbalan ce d) B-3 Table B-6 12IN1-S4 cable types B-4 Table B-7 V.35 signa ls B-4 Table B-8 X.21 Signa ls B-5 Table B-9 Cable Part Numbers for MGX-FRSM-HS1/BV B-5 Table B-10 Pinouts for SCSI-II Connector B-5 Table B-11 DC Power Wiring B-6

Tables

Table B-12 AC Power Cables B-7 Table B-13 Maintenance and Control Port Cabling B-7 Table B-14 RJ-45 Maintenance and Control Port Pin Assignments B-8 Table B-15 7T1 Clock Cabling B-8 Table B-16 Exter nal Ala rm Cab ling B-8 Table B-17 Network Alarm Pin Assignments B-9

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Tables

Cisco MGX 8230 Edge Concentrator Installation and Configuration

Release 1.1.31, Part Number 78-11215-03 Rev. B0, May 2001

Audience

Preface

This prefa ce de s crib es t he o bj ect ives, aud ien ce, organizatio n, an d co nvention s o f th e Cisco MGX 8230 Edge Concentrator Installation and Configuration Guide.

This publication is intended for the person who will do the physical installation of the MGX 8230. The MGX 8230 i s ty pica lly c o- lo cat ed an d rac k-mo unt ed wi th eith er an IGX 8 400 or BP X se ries s wit ch . The MGX 823 0 in s tal le r sh o ul d be fa m il iar w i th electronic cir c ui tr y an d wiring pract ices and h ave experienc e as an electronic or electrom ech an ic al technician, as w el l as w it h th e C is c o IGX / BP X switches .

Note This Cisco MGX 8230 Edge Concentrator Installation and Configuration covers the installation and

configuration f o r th e equipment . Th e co mm an d r efer en ce an d e rr o r co de s for t he M G X 8 23 0 ar e described in the section “Related Documentation."

Warning

Installation of the equipment should be performed by trained service personnel.

Organization

This do cu m en t is o rga ni zed into the f o llow in g ch apters:

• Chapter 1, “Introducing the MGX 8230”

• Chapter 2, “Mo dule and S er v ice Descr i pt io ns ”

• Chapter 3, “Site Preparation”

• Chapter 4, “En closure I nstalla tion”

• Chapter 5, “Configuring the MGX 8230 Shelf”

• Chapter 6, “Car d and Ser vice Configu rati on”

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Related D ocumentation

MGX 8230 Edg e Concentrator, Release 1 . 0 Related Documen tat i on

The following table lists documentation that contains additional information related to the installation and op er a t ion of t he MGX 82 3 0 E d ge Concentrato r.

Table 1 MGX 8230 Edge Concentrator Related Documentation

Documentation Description

Cisco MGX 8230 Edge Concentrator Installation and Configuration, Release 1.1.31

DOC-7811215=

Cisco MGX 8230 Edge Concentrator Command Reference, Release 1.1.31

Provides installa tio n in s t ru ct io ns fo r th e MG X 8 230 Edg e Concentr at or.

Provides detailed inf or mation on th e g en e ra l co mm an d lin e i nt er fac e commands.

Preface

DOC-7811211=

Cisco MGX 8230 Error Messages, Release 1.1.31

DOC-7811213=

WAN CiscoView for the MGX 8230 Edge Concentrator, Release 1.1.31

DOC-7810617=

Provide s er ror mes sag e desc ri ptio ns a nd re cover y pro ce dur es.

Provide s ins tru cti ons for usi ng WA N Cisc oView for the MG X 82 30 Edge Con cen trator.

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Preface

Cisco WAN Mana ger, Release 10, Related Documentation

The foll owing table lists the doc um entation fo r the Cisco WAN Manager (CWM) network management system for Rele ase 10.

Table 2 Cisco WAN Manager Release 10 Related Documentation

Documentation Description

Cisco WAN Manager Installation for Solaris, Release 10

DOC-7810308=

Cisco WAN M a na ge r U s er’s Guide , Release 10

DOC-7810658=

Cisco WAN Manager SNMP Service Agent Guide, Release 10

DOC-7810786=

Cisco WAN Manager Database Interface G uide, Re lease 10

DOC-7810785=

Provides procedures for installing Release 10 of the CWM network management system on Solaris syst ems.

Provides procedures for operating Release 10 of the CWM network management system.

Provides in for matio n abou t the CW M Si mple Ne twor k Managemen t Proto col Ser vice Age nt comp onents an d capabilit ies .

Provides th e informati on t o gai n di r ect acc ess t o th e C W M Informi x OnLine d a ta base tha t i s used to store in for m at io n about th e e lements wit h in y ou r ne tw or k .

Cisco WAN Switching Software, Release 9.3 Related Documentation

This table lists related documentation for the installation and operation of the Cisco WAN Switching Software, Re lease 9.3 a nd associated eq ui p m en t i n a C is c o WAN switching n et wo r k.

Table 3 Cisco WAN Switching Release 9.3 Related Documentation

Documentation Description

Cisco BPX 8600 Series Installation and Configuration, Release 9.3.10

DOC-7811603=

Cisco IGX 8400 Installation and Configuration

DOC-7810722=

Update to the IGX 8400 Installation and Configuration, Release 9.3.10

DOC-7811029=

Cisco IGX 8400 Series Reference

DOC-7810706=

Cisco WAN Switching Command Reference, Relea se 9. 3.05

DOC-7810703=

Update to the Cisco WAN Switching Command Reference, Release 9.3.10

Provid e s a genera l d es criptio n and technica l details of the BPX broadband switch.

Provides installation instructions for the IGX multiband switch.

Update for Release 9.3.1 0 to the Cisco IGX 8400 Installation and Config ur ation manual.

Provid e s a genera l d es criptio n and technic al details of the IGX multib an d s w it ch .

Provides detailed information on the general command line interface comman ds.

Provides detailed information on updates to the command line interface comman ds f o r fe at ures new to sw it ch s o ftwar e re lease 9.3.10 .

DOC-7811457=

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Conventions

Table 3 Cisco WAN Switching Release 9.3 Related Documentation

Documentation Description

Cisco WAN Switching SuperUser Command Reference, Release 9.3.10

Provid es d etailed in for m a tio n o n the comm an d l in e in ter fa ce comman ds r equiring S u pe rU ser a ccess autho ri zat io n

DOC-7810702=

Cisco M P L S C on t rolle r Softwa re C on fig ur at ion Guide, Release 9.3.10

Provides information on a method for forwarding packets through a network.

DOC-7811658=

Conventions

This publ ication uses t h e f ol lowin g co nventi ons t o c onvey instructions an d in fo r mat io n. Command descriptions use these conventions:

• Commands and keywords are in boldface.

Preface

• Arguments for which you supply values are in italics.

• Requir ed c ommand argum e nt s ar e in s id e a ng l e b ra cke ts (< >) .

• Optional command arguments are in square brackets ([ ]).

• Alternative keywords are separated by vertical bars ( | ).

Examples u s e t hes e co nventions:

• Terminal sessio n s an d in for mation the sy s t em d is p l ay s ar e i n screen font.

• Information you enter is in boldface screen font.

• Nonpri nt ing ch ar act er s, s u ch a s p as swo rds, are in an g le b rack ets (< >) .

• Default responses to system p rompt s are in square brackets ([ ]).

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Preface

Obtaining Documentation

Notes, tips , cauti ons, an d warnin gs use the fo llowing conventions and symbo ls:

Note Means reader take note. Notes contain helpful suggestions or references to materials not contained

in this m an u al.

Timesaver Means the described action saves time. You can save time by performing the action described in the

paragraph.

Caution Means reader be careful. In this situatio n, yo u m i ght do so m et hing tha t c ou ld r e su lt in equ i pm e nt

damag e or los s of data .

Warning

This warning symbol means danger. You are i n a situation that could cause bodily i njury. Before you work on any equipment, be aware of the hazards involved with elect rical circuitry and be familiar with standard practices for preventing accidents.

Obtaining D ocumentation

The following sections provide sources for obtaining documentation from Cisco Systems.

World Wide Web

Yo u can access the most cur re nt C isco d o cumentatio n o n t h e World Wide Web at the f o ll owing sites:

• http://www.cisco.c om

• http://www-china.cisco.com

• http://www-europe.cisco.com

Documen t at i on CD-ROM

Cisco d oc umentatio n an d additio n al li ter ature are available in a C D - ROM pa c ka ge, which s h ip s with your product. The Documentation CD-ROM is updated monthly and may be more current than printe d documentation. The CD-ROM package is available as a single unit or as an annual subscr iption.

Orderi ng D ocum entation

Cisco documentation is available in the following ways:

• Registered Cisco Direct Customers can order Cisco Product documentation from the Networking

Products M a rk etP l ace :

http:/ /w w w.cisco.com/cgi- bin/order/order _r o ot.pl

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Obtaining Technical Assistance

• Register ed Ci sco .co m use rs c a n or der th e Doc ume ntat io n CD-R O M t hrough t he on li ne Su bsc ripti on

Store:

http://www.cisco.com/go/subscription

• Nonregis t er ed C is co .c om u s er s can order documentati on t hro ug h a lo cal account r epresenta tive by

calling Cisco corporate headquarters (California, USA) at 408 526-7208 or, in North America, by calling 800 553-NETS(6387).

Documentation Feedback

If you are reading Cisco product documentation on the World Wide Web, you can submit technical comments electronically. Click Feedb a ck in the toolba r and s ele ct Documentation. After you complete the form, click Submit to sen d it to Cisco .

You can e-mail yo ur com ments to bu g- doc@ci s co.com. To submit your comments by mail, use the response card behind the front cover of your document, or

write to th e fo ll owi ng a dd r es s: Attn Document Resource Connection

Cisco Systems, Inc. 170 West Tasman Drive San Jose, CA 95134-9883

Preface

We appreciate your comments.

Obtaining Technical Assistance

Cisco p rovi des Cisco.com as a start in g po in t fo r all technica l assistan ce. Cu sto m e rs and partne rs c an obtain doc ument ation, trouble shooti ng tip s, and samp le conf igura tio ns from onli ne tools . For Cisco.c om registered users, additional troubleshooting tools are available from the TAC website.

Cisco.com

Cisco.com is the foundation of a suite of interactive, networked services that provides immediate, open access to Cisco information and resources at anytime, from anywhere in the world. This highly integrated Internet application is a powerful, easy-to-use tool for doing business with Cisco.

Cisco.com provides a broad range of features and services to help customers and partners streamline busin ess pr oce sses and i mpro v e pr odu ct i vi ty. Through Cis co.c om, you ca n f in d in for mat ion a bou t C isco and our netw ork ing s olut ion s, servi c es, an d prog rams . In addi tio n, you can resolv e technic al is su es with online t ech ni ca l s u p por t, d ow nl oa d an d t est s o ft ware packages, an d o rder Cisco learning materials an d merchan d ise. Valuable onli ne skill ass e ss men t, trainin g, an d cer ti fica tio n p ro g ra ms a re al s o availab le.

Customer s and pa rtners can self -regis ter on C isco.c om to obta in addi tional person alized i nformat ion and services. Registered users can order products, check on the status of an order, access technical support, and view be nefit s spe cific to thei r re lati on shi ps with Cisc o.

xxvi

To acces s C is c o. com, go to th e following w e bsite:

http:/ /w w w.cisco.com

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Preface

Technical A ssi stance Cent er

The Cisco TAC website is available to all customers who need technical assistance with a Cisco product or technology that is under warranty or covered by a maintenance contract.

Contact i ng TAC by U si ng the Cisco TAC Web si t e

If you have a priority level 3 (P3) or priority level 4 (P4) problem, contact TAC by going to the TAC website:

http:/ /w w w.cisco.com/ta c

P3 and P4 level problems are defined as follows:

• P3—Y our net w ork pe rf orma nce i s d egr ad ed. Netw or k fun ctio nali t y i s noti cea bly im pair ed , b u t most

business operations continue.

• P4—Y ou ne ed inform at ion or assi sta nce on Cis co p rod uc t ca pabi li tie s, prod uct i nst a lla ti on, o r ba sic

product configuration.

In each o f th e a bov e ca ses , use the Ci sco TAC website to q ui ck ly find an sw er s to y o ur q ue s ti on s.

Obtaining Technical Assistance

To register for Cisco.com, go to the following website:

http:/ /w w w.cisco.com/regis t e r /

If you cann ot res olv e your te chni cal i ssue b y us ing t he TAC o nl ine res our ces, Ci sco. co m re gi ste red u ser s can op en a case online by using the TAC Cas e O p e n to ol at the follow in g w e b site:

http:/ /w w w.cisco.com/ta c/caseopen

Contact ing TAC b y T elephone

If you have a priority level 1(P1) or priority level 2 (P2) problem, contact TAC by telephone and immediate ly open a case . To obtain a dir ect ory of tol l- free number s fo r your c ou ntry, go to the following website:

http:/ /w w w.cisco .com/warp /public /687/Directory /D ir TAC.shtml

P1 and P2 level problems are defined as follows:

• P1—Y our product ion network is down, causing a cr itical impa ct to business oper ations if se rvice is

not re s to r e d qu ickly. No wor karoun d is ava ila ble.

• P2—Your production network is severely degraded, affecting significant aspects of your business

operations. No workaround is available.

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Obtaining Technical Assistance

Preface

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CHAPTER

Introducing the MGX 8230

This chapter contains an introduction to the Cisco MGX 8230 Edge Concentrator including a summary of product features and equipment.

This chapter con tains the f o ll owin g in f or mation:

• MGX 8230 System Overview, page 1-2

–

The Ap plicati on s o f the MGX 8230, page 1-3

–

Universal Ed ge Ar ch itecture, pa ge 1- 3

–

Standards-Based Conversion to ATM, page 1-4

–

MGX 8230 Enclosure and Power, page 1-4

–

MGX 82 30 Ma na gem en t, page 1-1 1

• Summary of MGX 8230 Cards and Modules, page 1-12

–

Processor Switching Module (PXM1), page 1-12

–

User Inter fac e B ac k C ar d s, p ag e 1 - 13

–

Service Resource Module (SRM), page 1-14

–

Frame Relay Service Modules (FRSM), page 1-14

–

ATM UNI Service Modules (AUSM), page 1-14

–

Circuit Emulation Service Modules (CESM), page 1-15

–

Voice Service Modu le s ( V ISM ) , p age 1-1 5

–

Route Processor Module (RPM), page 1-15

• Redundancy for Service Modules, page 1-16

For more detailed descriptions of the Service Modules, cards and services, please refer to Chapter 2,

“Module and Service Descriptions”

For additional descriptions of the MGX 8230 capabilities and specifications, refer to the Cisco document MGX 8230 Edge Concentrator Overview.

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MGX 8230 System Over view

MGX 8230 System Ov erview

The Cisco MGX ™ 8230 Edge Concentrator is a small footprint Multiservice Gateway specifically designed for Service Providers with space and power constraints. The Cisco MGX 8230 offers cost effective narrowband, voice, and IP services; and acts as a feeder shelf to Cisco BPX 8600 series, MGX 8850, and Cisco IGX 8400 series Multiservice Switches. The MGX supports the following services:

• IP VP Ns usi n g C isco IOS s oftw are- b as ed M PLS / lab el sw it ch in g.

• The f ull sui te of voice-over-IP, voice-over-ATM, and c apabilities w it h full in terwork in g.

• Frame Re lay se rvic es.

• High-density Point-to-Point Protocol (PPP) for Internet access and aggregation.

• Narrowband ATM for managed data, voice, and video services.

• Circui t Emu lat io n ( CE) fo r pr ivate lin e r ep la cem en t.

Figure 1-1 is an illustration of a MGX 8230 with its door attached. Note that there are light pipes in the

door that display the status of the processor models (PXM1s).

Figure 1-1 MGX 8230 with Door Attached

Chapter1 Introducing the MGX 8230

1-2

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Chapter1 Introducing the MGX 8230

The Applications of the MGX 8230

The MGX 8230 operates in the following applications:

Note Refe r to the Cis co document MGX 8230 Edge Conce ntrator Overview for addi tional information on

the applications of the MGX 8230.

Note See Chap te r 5, “Configuring the MGX 8230 Shelf” for information on configuring MGX8230

applications.

As a feeder

The MGX 8230 concentrates narrow-band and medium-band ATM, Frame Relay, and into a single, wide-band ATM feeder t run k th at connects t o a B P X 86 0 0- se ri es sw i tch o r a M G X 88 50 sw it ch .

MGX 8230 System Overview

As a Stand-Alone Switch

The MGX 823 0 can be de ployed a s a stan d- a l on e s wi tch, prov iding “cross-conn ec t” connection s between UNI and NNI ports. Traditionally, this would be used in a concentration-type mode, allowing stand ar d s -b a sed adap tat i o n and conce n tr ation of m ul ti s e r vi ce tr affic on t o one or more hi gh-spee d ATM inter fa ces . T hi s en ab le s th e MG X 823 0 to inte rf a ce to a m ul ti v e ndo r ATM netw ork , o r to an y oth er ATM attached device (such as a Cisco 7200 or GSR router LS1010, MSR 8450, and so on). The MGX 8230 interfaces to the ATM equipment using a standard ATM UNI or NNI..

Multiprotocol Label Switching (MPLS)

As a component of the BPX 8680-IP universal service node, the MGX 8230 is capable of forwarding traffic into the BPX M P LS networ k by acting as a m u lt is e rv ic e f ee der

Consolidation of Cisco CPE Traffic

At the edge of the network, the MGX 8230 can interwork with and consolidate a wide variety of CPE equipment.

Multiservice Stand-alone Concentrator

The MGX 8230 can be depl oyed as a stand-alone conce nt r ato r, in ter fa cin g to a multivend or ATM (non-BPX) netw ork, as s hown Figure 1-5 . The MGX 82 30 inte rface s to ATM equipment us ing a st andard ATM UNI or NNI.

Universal Edge Archit ecture

The MGX 8230 supports a wide range of services over narrowband and mid-band user interfaces by mapping all service t r affi c to and from ATM using sta ndardized i nterworking methods. The MGX 8230 supports up to 64 channelized or non-channelized T1 and E1 interfaces on a single IP + ATM multis er v ice gateway

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1-3

MGX 8230 System Over view

The suppo rted i nt er faces fo r use r-tra ffic are:

• Frame Relay UNI o n T3, E3, HSS I , T 1, an d E1 li ne s .

• ATM UNI and FUNI interfaces.

• Optional inverse multiplexing for ATM (IMA).

• Frame Relay to ATM network interworking and service interworking.

• Circuit Emulation services for T1/E1 and T3/E3 lines.

The opti onal Se rvice R esource Module-3 T3 (MGX-S RM-3T3/ C) can su pport up to 64 T 1 inter face s. The MGX-SRM-3T3/C can also provide 1:N redundancy for the T1 and E1 line cards.

The modul ar, sof t ware- b ased s y stem archi tec tu re en ab le s th e 8230 to su pp or t new f eat ur es through downloadable software upgrades or new hardware modules.

The MGX 8230 backplane supports individual line rates range from DS0 through OC-3.

Standards-Based Conve r si on to ATM

The MGX 8 230 co nverts all u ser i nf o rma ti on i nto 53 - byte ATM cells by usi ng t he ap pro pr i ate ATM Adaptat ion La yer ( AAL) for tra nsp ort ov er th e ATM backbone net wo rk. The indi v idua l se rvic e mod ules segment an d r eassemble (SA R ) cel ls t o eli min ate system b o tt lenecks. The fo llow in g li st s h ows th e applicab le AA L f or ea ch s erv ice:

Chapter1 Introducing the MGX 8230

• Circuit emulation services uses AAL1.

• Frame Relay-to-ATM network interworking uses AAL5 and Frame Relay Service Specific

Convergence Sub-layer (FR-SSCS).

• Frame Relay-to-ATM service interworking uses both transparent and translation modes to map

Frame Relay to native ATM AAL5.

• Frame Forwar ding uses A AL5.

MGX 8230 Enc l osure and Power

The MGX 8230 ha s a 14 single-height slot (7 double-height) chassis. Th is chassis can be rack mounted in a 19-inc h rack, or fi tted wi th side panels to be a free-st anding bo x (referr ed to as a “stand-alone” MGX

8230). An optional mounting b r acket kit is also avail able for mounting the MGX 8230 in 23-inch racks.

Note Although the card slots in an MGX 8230 are horizontal, this manual refers to the card slots and

modules a s sin gl e-he ig ht an d do uble -he ight . This i s for co nsi ste nc y: t he P XM1 core card and s ervi ce module ca rds a re a s u b set of t he M G X 8 25 0 car d s th at are ins tal le d ver tic all y in an MGX 82 50 chassis.

Slot Numbering and Placement

1-4

The MGX 8230 slots are populated with cards and modules according to the following rules (Figure 1-2):

• The slots are numbered 1 to 7 on the left half of the chassis. The slots on the right side of the chassis

are numbered 8 to 14.

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• Each s er vice module slo t can ac cep t one singl e- he ig ht ca rd o r b e converted to accep t two

double-height cards.

• Slots are 1 and 2 are always double-height slots and reserved for the primary and redundant MGX

8230 Processor Switch Modules (PXM1s).

• Slots 7 and 14 are reserved for SRM modules only: no other service modules can be used in these

two slots.

• Eight single-height slots (four double-height slots) are available for service modules.

Figure 1-2 is a conceptual drawing of an MGX 8230 showing the dimensions and the slot numbering.

The slot numbe ring is a s i t app ears f rom t he fro nt of the MGX 8 230; s lot s 8 a nd 9 refe r to b a ck card slo ts only.

Single Height and Double Height Slots

Single-height slots on the MGX 8230 chassis can be converted into double-height slots.

• When a double-height front card is plugged in, the left slot number is used. The back cards are

numbere d accordin g to th e front card numbe ring sc heme, wi th the e xcept ion of sl ots 8 and 9 as noted below.

• Since front slots 1 and 2 are always doubl e-height for PXM1 processor mo dules, slots 8 a nd 9 only

refer to t he bac k ca rd sl ot s that cor res pon d to th e t wo lo we r si ngle -he ight slo ts on the left sid e of the chassis as s e en f rom th e r ea r.

MGX 8230 System Overview

• When co nverting si ng le -h ei gh t s lots in to d ou b le- h eig h t sl ot s t he co nversion m u st start fro m th e

bottom and be con ti guo us. For e xamp le, b efore y ou c an convert slot 4 i nto dou bl e he ig ht, sl ot 3 must be converted fir st (as shown in Figure 1-3 on page 1-6).

Figure 1-2 MGX 8230 Slot Placement

(12.25 in.,

1 RU

(1.75 in.,

4.5 cm.)

7 RU

31.1 cm.)

7 6

F A

T R

A Y

2 1

SRM

SM SM SM SM SM SM

SM PXM 2 PXM 1

Optional AC power tray

17.72 in. (45 cm.)

SRM

14 13 12 11 10

9 8

23.5 in.,

(59.7 cm.)

38375

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MGX 8230 System Over view

Figure 1-3 MGX 8230 Card Cage, Front View

Chapter1 Introducing the MGX 8230

26268

Chapter 3, “Site Preparation” and Chapter 4, “Encl o sure Installation” contain additional information on

installing racks and the MGX 8 230 ch assis.

MGX 82 30 Power Sy stem

The MGX 823 0 p owe r s yst em i s d esi gn ed w it h dis tribu te d p ower ar ch it ect ure centered ar ou n d a

-48 VDC bus on the system backplane. The -48 VDC bus accepts redundant DC power from either a -42 to -56 VDC source via optional DC power entry modules (PEMs) or from a 100 to 120 or a 200 to 240 VAC source via the optional AC Power Supply Tray. The MGX 8230 backplane distributes power via connectors on the - 4 8 VDC bu s to e a c h hot-pl ug gable p r ocessor or se rv ice mod ule. Each car d incorpo rates on-boa rd D C -D C co nverter s to convert the -4 8 V DC f r om th e di s tr ibutio n bus vol tag e to the voltag es r eq u ir ed o n th e card.

Optional AC Power Supply

For an AC-powered MGX 823 0, an opt i onal AC power suppl y tra y is a tt ach ed to the bo ttom of the MGX 8230 card cage at the f act or y. The AC power sup p ly tray i s o ne ra ck -un it hi g h, an d can h ol d up t o tw o AC Power Supply modules. Each AC Power Supply module can provide up to 1,200W at -48 VDC an d has it s own AC power cor d and power s w itch. Figure 1-4 shows the rear view of an optional AC Power Supply modu le . Th e po we r supp lies c an be con f igure d as 1+1 re dun dant . If no redu ndancy is desired, an AC tray with one AC power supply and one AC power cord can also be ordered.

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Figure 1-4 AC Po w er Supply Module, Rear View

Each AC Power Supply Modu le inco rpora tes the follow ing feat ures:

• 1 rack unit high

• An output capacity of 1200 Watts at -48 VDC

• O-ring diode

MGX 8230 System Overview

23818

• EMI filtering

• Cooling fan

• Power switch

• DC and AC status LEDs

DC-Powe red MGX 8230

For DC syste ms, a DC Power E ntry modu le (PEM) is requ ired for eac h DC source of ce ntral of fi ce power

-42 to -56 VDC. The MGX 8230 can support two DC power sour ces and has rear panel slots for two DC PEMS. Figure 1-5 illustrates a DC PEM.

The DC PEM s i nc orp orate the follow ing fe at ur es:

• Hot swappable

• O-ring diode

• EMI filtering

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MGX 8230 System Over view

Figure 1-5 MGX 8230 DC Power Entry Module

Cooling System

The MGX 8 230 in co r po r at es a fan tray assem b l y ( with eight f an s) lo cat ed o n th e l ef t side of th e c ar d cage to pull ambient cooling air into the system through openings between front card faceplates, over the boards in the card cage, and out through air exhaust openings on the left side of unit. Figure 1-6 is an illus trati on of the MGX 8230 f an tr ay ass embly . The coo ling sy stem in corpora tes th e follo win g desi gn features:

48 VDC

30A

Chapter1 Introducing the MGX 8230

17275

TB1

OFF

• -48 VDC fans with rotation sensing

• N+1 fan redundancy

• Hot pluggable (if done quickly) Fan Tra y Assembly

• Noise level < 65 dBA

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Figure 1-6 MGX 8230 Fan Tray Assembly

MGX 8230 System Overview

17274

MGX 8230 Arch i tecture

The MG X 8 23 0 ar ch it ecture is buil t around t he switch in g fabric on the processor sw i tch in g m o du le (PXM1), t he ba ckpl ane, and the s ervi c e modul es. Figur e 1-7 is a very sim ple bloc k di agra m of t he MGX 8230 archite ctur e.

The main functions of the MGX 8230 backplane are to connect cards together, terminate critical signals properly, provide -48 VDC power to all cards, and set ID numbers for each slot. In addition, the MGX 8230 backplane interconnects both front cards and back cards together via pass-through connectors. A software re ad ab le ID o n th e backplan e i s available for sof twar e t o id en tif y th at the chas si s is a n MGX 8230.

The cell bus controller s (CBCs) are applicatio n -sp ec ific in teg ra ted c ir cu it s ( A SIC s ) an d prov id e t he interface be tw een the switching fa br ic an d th e s e rv i ce modules.

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MGX 8230 System Over view

Figure 1-7 MGX 8230 Archit ecture Simple Block Diagram

Chapter1 Introducing the MGX 8230

Cell Bus

MGX 8230-PXM front card

OC-3, OC-12,or

T3/E3 daughter card

Shared

memory

switch

Processor

CBC CBC

PXM-UI back card

PXM uplink back card

Cell buses to and from service modules

MGX 8230 midplane

Maintenance and control ports

LAN ports T1/E1 clocks Alarm outputs

OC-3, OC-12,or T3/E3 feeder link

38377

The MGX 8 230 cell bus (CB) p r ovide s h ig h-s p ee d i nt er fa ce b et w een t he sw it ch fab r ic an d th e s e rv ic e modules.

Figure 1-8 shows the overall cell bus distribution of MGX 8230 backplane and Table 1-1 lists the specific c ell bu s al lo cat io n to each slot wi th re sp ec t to master an d s lave c ell bus po r ts.

Each PXM1 supports eight master cell buses and one slave cell bus connected to the backplane. The service modules have two slave cell bus ports, one from each PXM1. The master cell bus ports are CB0 to CB7 and the PXM1 slave ports are referred to as 7S and 8S in Table 1-1.

A cell bus compr ises th e g rou p of sig na ls used to transfer da ta be tw ee n th e P X M and a serv ice module. CB 0, 6, 1, 2, 4, and 3 are dedicated service modules, CB5 supports physical slot 6. CB7 supports physical s l ot 1 3 as w el l as the alt er n ate P X M 1’s slave port.

There is a connectio n o n c ell bu s 7 to t he alternate P X M 1. A P XM 1 is a bl e t o c ommunicat e w i th th e other PXM1 using the slave cell bus port on that card. Slots 8 and 9 only refer to back card slots.

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Figure 1-8 Cell Bus Distribution

MGX 8230 System Overview

Left side of chassis Right side of chassis

CB3

14 13

12 11 10

CB7

38376

7 6 5

4 3 2 1

CB0

CB6

CB1

Table 1-1 Cell Bus Distribution

PXM PXM

CB5

CB2

CB4

Left Side Chassis Right Side Chassis Physical Slot #12345671011121314 Slot ID Address 1s 2s 9 A B C D 9 A B C D

CB0_A/B x CB1_A/B x CB2_A/B x CB3_A/B x CB4_A/B x CB5_A/B x CB6_A/B x CB7_A x x CB7_B x x

MGX 8230 Manag eme nt

Firmware on each card determines the functions and operations of the module. This firmware can be upgra ded by dow nloading new firmware with a TF TP applicati on runnin g on a wor kstatio n or a P C.

The current status and configuration parameters of the modules reside in a Management Information Base (MIB). The MIB is updated by the firmware in the modules whenever changes to the module status or configuration occur. The MIB can be interrogated using SNMP commands.

The MGX 8230 supports the following user interface applications:

• Cisco WAN Manager (formerly StrataVie w Pl us ): a Graphical User Interf ac e (GUI) application for

connecti on ma nagement. Th is a pp li cat io n en ab le s op erat io n s , ad mi ni s trat io n, an d m ai nt en an ce of WA N-m ul ti ser vice netwo rks .

• Cisc o View: a G U I application f o r hardware co n figuratio n.

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Summary of MGX 8230 Cards and Modules

• Command line in ter fa ce ( CLI): th e CL I i s us e d f or low - level co n tr ol of hardw ar e f un ct io nality and

connecti on co n trol .

The followin g p orts ar e u sed t o c ommunicat e with the MG X 8 2 30:

• The Control port (SLIP protocol only) on the PXM1-UI back card.

• The L AN (E th er ne t) p ort on t he P X M 1-U I ba ck ca rd .

• The in-ban d ATM connect ion (fee der ap plicatio n only) .

All of the s e p o rts su pp o rt access by th e C LI v ia Telnet, TFTP, and SNMP.

Note See the User Interface Access Ports, page 5-2 for additional information on the ports used to manage

and configur e t he M G X 823 0.

Summary of MGX 8230 Cards and Modules

This section contains a summary of the service cards and modules supported by the MGX 8230.

Chapter1 Introducing the MGX 8230

For more d etailed des cr i ptions and ill us t ra ti ons of card s, m o du les and the s er v ice s th ey pr ov id e, please refe r to Chapter 2, “Module and Service Descriptions”.

Introduction to Core Card Sets and Service Modules

The MGX 823 0 su ppo rts core cards and service modules. The Proces sor Swit chi ng M odule (PX M1) and optiona l Service R eso ur ce M o du le (SRM) ar e core cards.

In addition, the PXM1 is part of a card set consisti ng o f a fr o nt card, a back ca r d, an d a d au gh te r car d :

• The fr ont card con tai ns th e p r oc es sin g in te lligence.

• The daughter card contains the firmware that distinguishes the interface (OC-3, T3, E3, and so on).

• The bac k c a rd is a s im pl e c ar d th at provides t he el ect ri cal i nt er face f or o n e o r mo r e li n es o f a

particular ty pe.

Service mo du le s ar e no t com bi ne d in this man n er an d ar e n ever pa rt o f a ca rd se t. Instead , servic e modules provide the in terface for transport te ch no lo g ie s such as Frame Relay an d ATM.

The MGX 8230 enclosure contains up to 8 service modules (I/O cards). The optional Service Redundancy Modules (SRMs) provide redundancy.

Note Although technically distinct, he terms card and module are often used intercha ngeably in the field.

Processor Switching Module (PXM1)

1-12

• Processor Switching Module (PXM1)

This front card controls the 8230 and supports external interfaces for user-access and trunking or UNI ports. The back cards consist of a user interface card and a broadband network module.

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User Int er f ace Back Ca r ds

• Proces sor Sw i tch M o d ul e U ser In ter fa ce (PX M 1 -U I)

The PXM1 -UI i s th e user inte rf a ce card that has various types of user access used to control and configure the 8230.

• Processor Switch Module User Interface (PXM-UI-S3)

The PXM- U I-S3 is an op t iona l u ser in terf ace c ard that has various type s of user a ccess u sed to control an d co nfi gur e t he 82 3 0. Th is car d al so p r ov id es S t ra tu m 3 cl oc ki ng c ap a b ili ty.

OC-3 Uplink Back Cards

• MGX-MMF-4-155/B (multi-mode fiber uplink back card)

The MGX-MMF-4-155/B is a broa dband ne tw ork module for the PXM1 and provides four SONET OC-3/STM-1 ATM interfaces at 155 Mbps.

• MGX-SMFIR-4-155/B (single-mode fiber interm ediate reach up li nk back card)

The MGX-SMFIR-4-155/B is a broadband network module for the PXM1 and provides a single -mode, intermediate-reach, f iber optic SONET OC-3 interface that conforms to ANS I T1.105 and GR-2 53 -CO R E s t an da rds . T hi s in t er fac e u ses SC connectors. Redundan t co nfigur ati on s are supported through SONET automatic protection switching (APS) functionality (APS requires the “B” model).

• MGX-SMFLR-4-155/B (single-mode fiber long reach uplink back card)

The MGX-SMFLR-4-155/B is a broadband network module for the P X M1 and p r ovides a single-mode, long-reach, fiber optic SONET OC-3 interface that conforms to ANSI T1.105 and GR-253-CO R E s t an da rds. Th is i nt erfac e u ses SC connectors, and redund an t co nfigu rati on s are support ed through S O N ET A u to ma t ic P r o te ction Swit ch ing (APS) fu n ctionalit y ( A PS re quires th e “B” model).

Summary of MGX 8230 Cards and Modules

OC-12 Uplink Back Cards

• MGX-SMFIR-1-622

The MGX-SMFIR-1-622 is a broadband network module for the PXM1 and provides a SONET OC-12/STM-4 A TM interface at 622 Mbps. Automatic Protection Switching (APS) requires the “B” model (SMFIR-1-622/B).

• MGX-SMFLR-1-622

The MGX-SMFLR-1-622 is a broadband network module for the PX M 1 and pr ovides a S O NET OC-12/STM-4 A TM interface at 622 Mbps. Automatic Protection Switching (APS) requires the “B” model (SMFLR-1-622/B).

T3/E3 Uplink Back Cards

• MGX-BNC-2T3

The MGX-BNC-2T3 is a broadband network module for the PXM1 and provides two T3 ATM interface s .

• MGX-BNC-2E3

The MGX-BNC-2E3 is a broadband network module for the PXM1 and provides two E3 ATM interface s. Two versio ns o f th e BN C - 2E3 c ar d ar e availa bl e. Th e BNC-2E3 A ap pl ies to Austr al ia only. The BNC-2E3 applies to all other sites that require E3 lines on the PXM1 uplink card.

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Summary of MGX 8230 Cards and Modules

Service Resource Modul e ( SRM)

• Service Resource Module (MGX-SRM-3T3/C)

The optional SRM provides three major functions for service modules; bit error rate tester (BERT) of T1 a nd E1 l in es a nd por ts, loo ps bac k of i ndividual N x 64 c ha nnel s t o ward t he c ust ome r p remis es equipment (CPE), and 1:N redundancy for the service modules.

Frame Relay Service Modules (FRSM)

• Frame Service Module for eight T1 ports (AX-FRSM-8T1)

The AX-F RSM - 8 T1 prov id es i n ter fa ces f o r up t o eig h t fractional T1 lines, each o f which can support one 56 kbps or one Nx64 kbps FR-UNI, FR-NNI port, ATM-FUNI, or a Frame forwarding port. Th e AX-F RSM-8T 1 sup por ts fr act io nal a nd unc hanne l ize d T1 po rt selec tio n on a per - T1 ba sis.

• Frame Service Module for eight E1 ports (AX-FRSM-8E1)

The AX-F RSM - 8 E1 prov id es i n ter fa ces f o r up t o eig h t fractional E1 lines, each o f which can support one 56 kbps or one Nx64 kbps FR-UNI, FR-NNI, ATM-FUNI, or Frame forwarding port. The AX-FRSM-8E1 supports fractional and unchannelized E1 port selection on a per-E1 basis.

• Frame Ser vice Mod ule for eig ht channelized T1 ports (AX-FRSM-8T1-C)

The AX-F RSM - 8 T1 -C al low s f ull D S 0 a nd n x D S0 ch an ne lization of th e T1 s. Each inte rface is configurable as up to 24 ports running at full line rate, at 56 or n x 64 kbps for a maximum of 192 ports per FRSM-8T1-C.

Chapter1 Introducing the MGX 8230

• Frame Ser vice Mod ule for eig ht channelized E1 ports (AX-FRSM-8E1-C)

The AX-F RSM - 8 E1 -C al low s f ull D S 0 a nd n x D S0 ch an ne lization of th e E1 s. Each inte rface is configurable as up to 31 ports running at full line rate, at 56 or n x 64 kbps for a maximum of 248 ports per FRSM-8E1-C.

• Frame Service Module for T3 and E3 (MGX-FRSM-2E3T3)

The MGX-FRSM-2E3/T3 provides interfaces for two T3 or E3 Frame Relay lines, each of which can support either two T3 lines (each at 44.736 Mbps) or two E3 lines (each at 34.368Mbps) FR-UNI, ATM-FUNI, or Frame Forwarding port.

• Frame Ser vice Mod ule for channelized T3 (MGX-FRSM-2CT3)

The MGX -F RSM-2CT3 su p po r ts i nt er fac es f o r two T3 channe lized Frame Relay lines . Eac h interface supports 56 Kbps, 64 Kbps, Nx56 Kbps, Nx64 Kbps, T1 ports that can be freely distributed across the tw o T3 lines .

• Frame Service Module for high speed serial (MGX-FRSM-HS1/B)

The FRSM-HS1 /B supports th e 12-in-1 back car d. This back card supports up to fo ur V.35 or X.25 serial int er fac es. This card a lso s u pp o rts th e tw o po r t HS S I b ack cards with S C S I-2 co n ne ctors.

• Frame Ser vice Mod ule for unch ann elized HSSI (MG X-FR SM-H S2/B )

The MGX -F RSM - H S 2/B supports in ter fa ces fo r tw o un ch an n eli zed H SS I l in es. Each interface supports approximately 51 Mbps; with both lines operating, maximum throughput is 70 Mbps.

ATM UNI Service Modules (AUSM)

• ATM UNI Service Module for T1 (MGX-AUSM/B-8T1)

The MGX-A USM /B -8T1 pro v ides inte rf ace s for up to e ight T 1 lines. You can group N x T1 l ines to form a sin g le, lo g ical interfac e ( IM A) .

1-14

• ATM UNI Service Module for E1 (MGX-AUSM/B-8E1)

The MGX-A USM /B -8E1 pro v ides inte rf ace s for up to e ight E 1 lines. You can group N x T1 l ines to form a sin g le, lo g ical interfac e ( IM A) .

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Chapter1 Introducing the MGX 8230

Circui t Emulatio n Service Modules ( CESM)

• Circuit Emulation Service Module for T1 (AX-CESM-8T1)

The AX-CESM-8T1 p rovi des in terfaces for u p to eight T1 li ne s , ea ch o f w hi ch is a 1 .5 44 M b ps structured or unstructured synchronous data stream.

• Circuit Emulation Service Module for E1 (AX-CESM-8E1)

The AX-CESM-8E1 provides interfaces for up to eight E1 lines, each of which is a 2.048-Mbps structured or unstructured synchronous data stream.

• Circuit Emulation Service Module for T3 and E3 (MGX-CESM-T3/E3)

The MGX-CESM-T3E3 provides direct connectivity to one T3 or E3 line for full-duplex communic ati ons a t the DS3 ra te o f 44.73 6 MHz or at the E 3 rate of 34.36 8 MHz . Each T3 or E 3 l ine consists of a pair of 75-ohm BNC coaxial connectors, one for transmit data and one for receive data, along w ith three LED in dicato rs for li ne statu s .

Voice Service Modules (VISM)

• MGX-VISM-8T1 and MGX-VISM-8E1

These card s su pp o rt ei gh t T1 or E 1p o rts for t ra nsp o rtin g d ig iti zed vo ic e si gn al s ac ros s a pa cke t network. The VISM provides toll-quality voice, fax and modem transmission and efficient utiliz atio n o f wi de-a rea b andwi dt h t hrough in dust ry sta ndard imp lem enta ti ons of ec ho cance ll ati on, voice-compression and silence- suppression techniques.

Summary of MGX 8230 Cards and Modules

Note For configuration information on the Voice Interworking Service Module (VISM), see the

Voice Interworking Service Module Installation and Configuration Guide

Route Pr ocessor Module (RPM)

• Route Processor Module (RPM)

The RPM is a C isco 7200 se ri es r o uter r ed esi gn ed as a double -hei gh t card . Each RPM use s tw o single -height back cards. The back card types are single-port Fast Ethernet, four-port Ethernet, and single-port (FDDI).

Note For information on availability and support of the MGX-RPM-128/B and MGX-RPM-PR,

see the Releas e N o tes fo r “Cisco WAN MGX 8850, 8230, and 8250 Software”

Note For configuration information on the Route Processor Module (RPM), see the Cisco Ro ut e

Processor Module Installation and Configuration Guide.

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Summary of MGX 8230 Cards and Modules

Redundancy f or Service Modul es

Service modules can have either 1:1 redundancy or 1:N redundancy. Refer to the Ci scoView user documentatio n f o r in s tructions o n u s in g th e CiscoView appl ication to

configure redundancy.

1:1 Redundancy

For 1:1 redundancy, place the card sets in adjacent slots and connect the appropriate Y -cable to the paired ports on th e active and stan d by car d s. A p pl ica bl e service mod u les are:

• MGX-FRSM-2CT3

• MGX-FRSM-2T3E3

• MGX-FRSM-HS2

Hot Standby

For hot stan d by, place th e ca r d se ts i n th e s a me she lf an d co nn ec t t he approp riate Y- cable to th e p ai re d ports on the active and hot stan dby card s. The hot stand by card wil l automa tical ly configur e itself to match the configuration of the primary card. This process may take up to eight minutes. After the configurati on tr an s f er pr o cess is complet ed , th e transfer fro m the primar y t o th e h o t sta nd by car d tak es less that one second regardless of the number of connections. Any subsequent changes to the primary card are au to matically tr ansferred t o the hot stan dby ca rd c on fig u ra tio n so th e two c a rds maintain t he same co n figur at io n. Refer to th e “Redundancy for Service Modules” section on page 1-16 for instructions for setting up a redundant pair.

Applicabl e ser v ic e m o d ul es a re :

Chapter1 Introducing the MGX 8230

1:N Redundancy

• MGX-FRSM-2CT3

• MGX-FRSM-2T3E3

• MGX-FRSM-HS2

To determine the ho t stand by s tatus of the sy ste m, use t he command dsphotstandby.

For 1:N redunda ncy, an MGX Service Resource Module-3T3 (MGX -S RM-3T3/C) c ard set is necessary. This card set supports 1:N redundancy for the following service modules:

• MGX-AUSM-8T1/B

• MGX-AUSM-8E1/B

• AX-FRSM-8T1

• AX-FRSM-8E1

• AX-CESM-8T1

• AX-CESM-8E1

• MGX-VISM-8T1

• MGX-VISM-8E1

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Chapter1 Introducing the MGX 8230

With 1:N redundancy, a group of service modules has one standby module. Redundancy by way of the red undancy bus on the MGX- SRM-3T3/C require s the r edundan t card gr oup to h ave one of the foll owing special back cards for redundancy support:

• R-RJ48-8T1-LM

• R-RJ48-8E1-LM

Summary of MGX 8230 Cards and Modules

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Summary of MGX 8230 Cards and Modules

Chapter1 Introducing the MGX 8230

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CHAPTER

Module and Service Descriptions

This chapter includes detailed descriptions of the modules, cards and services available with the MGX 8230:

• Processor Switching Module, page 2-1.

• Service Resource Module, page 2-12.

• ATM UNI Service Module (AUSM), page 2-15.

• Frame Relay Service Modules, page 2-20.

• Circuit Emulation Service Modules, page 2-45.

• Vo ic e S e rv ic e: The VISM , p a g e 2 -55 .

Note Althoug h th e illustrati on s i n this cha pt e r d isp lay the eq u ip men t in a ver tic al po s i tio n , the cards an d

modules a r e rotated 90 degrees (to a horizo ntal position) when installed in t he MGX 8230 bac k card slots. See the “MGX 8230 Enclosure and Power” section on page 1-4 for more information on slot assign ments and module installation.

Processor Switchi ng Module

The PXM1 ca rd set co n s ist s of th e PXM 1 fro nt car d , th e PX M1 U ser Interface back ca rd (P XM 1 -U I or PXM-UI-S3), and various uplink back cards th at can s e rve as either a trun k or a U NI.

For physical details of PXM1 cards, see Appendix A, “Technical Specifications.”

Caution Handle the PXM1 front card very carefully to preserve the alignment of the attached disk drive. Do

not dr o p or bu m p the PX M 1 .

Caution Before usi ng the 82 30, ve rify t hat th e daught er car d on the P XM1 corre sponds t o the uplink c ard typ e.

Serious damage may r es u lt if t he power i s o n a nd t he s e c ar ds ar e m i sm at ch ed .

Note The PXM1 processor module for the MGX 8230 is identical to the PXM1 for the MGX 8250.

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Processor Sw itching Modu le

PXM1 Features

The PXM1 (Figure 2-1) is a combination ATM switching fabric, data processing, and ATM interface card. Thi s mo du le co m b in es a 1 .2 G b ps s h ared - m emory swit ch in g fab r ic wi th i nt egr ate d tr un k in g at speeds up to OC-12. The switching fabric provides 1.2 Gbps of non-b locking switching capacity, while the pr ocessor provides t h e control p lane tha t delivers I P +ATM netwo r ki ng software, diagnos tics, an d perfo rm anc e mo nito ri ng.

The PXM provides integrated switching, processing, and broadband interfaces to provide the following high-performance switching and trunking features:

Chapter2 Module and Service Descriptions

• 1.2- Gb ps non- b lock ing swit ch ing

• Integrated T3/E3, OC-3c/STM-1, OC-12c/STM-16

• ATM trunking

• Linea r A ut omatic Pro tec ti on S witching fo r th e SONET i nt er fac es. Note that A P S i s availab l e f or

only t he “B” models of the OC-3 and OC-12 uplink cards.

• Hot card ins ertion/removal

• 1:1 ho t stan dby re du nda ncy

• User-selectable primary and secondary clock sources with graceful switchover

• Internal Stratum-4 or optional Stratum-3, external BITS, or inband clock sources

• Inband management or out-of-band via EIA/TIA-232 or 10BaseT control ports

• Narrowband service modules

• Broadband trunking support

• DSO to OC-12c/STM-4 interfaces supported

PXM1 Illustration and LED Description

PXM1 provides connectors for external audio and visual alarms. The interface can either be always open or always closed. Major and minor alarms are controlled separately. An alarm cutoff button is accessible from the front. A history LED is set when the alarm cutoff button is pressed. The history LED can be cleared by p re s sin g th e h ist o ry cl ea r butt on o n th e f ace pl at e.

The PXM 1 p rov id es th e f o llow in g in d icators:

• System Status Active/Standby/Fail/standby update (green/yellow/red/flashing yellow)

• Critic al ala rm (bl ue)

• Major alarm (red)

• Minor alarm (yel low )

• DC OK A (green = OK, red = not OK)

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• DC OK B (green = OK, red = not OK)

• ACO (green)

• History (g reen )

• Port act ivit y (a ctive a nd c lea r = g re en , r em o t e al ar m = yellow, local alar m = r ed )

• LAN activity ( fl a shing gr een)

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Chapter2 Module and Service Descriptions

Figure 2-1 PXM1 Front Card

Processor Switch ing Module

PXM1 User Interface Back Cards

The PXM1 U ser I nt erfa ce ( PX M 1 -UI ) ba ck ca rd p rovi de s p orts for commu n ica ti on an d co n trol . T hi s card is also used to connect the system to an external clocking source. Install this card in the upper half of the back of the PXM1. See the “User Interface Acce ss Ports” section on page 5-2 for more informat ion on the PX M 1 ba ck card p or ts .

There are tw o options for th e PX M 1 U ser I n ter fa ce b ac k car d :

PXM1-UI (standard)

11439

The PXM1-UI back card shown in Figure 2-2 provide s :

• One RJ-45/48 for external T1 or E1 clock input

• One BNC connector for E1 clock input

• One DB-15 female connector for alarm interface

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Processor Sw itching Modu le

• Main tenance , Co ntrol an d L A N p or ts.

PXM-UI-S3 (optional)

The PXM- UI- S3 b ack ca rd s h own i n Figure 2-3 provides Stratum 3 clocking:

• One RJ-45/48 connector for external T1 or E1 clock input (CLK1).

• One DB-15 female con nector f or ala rm inte rface (A larm)

• Main tenance , Co ntrol an d L A N p or ts.

Note The LAN2 and CLK2 ports on the PXM-UI-S3 are not supported in this release. All external

connecti on s ar e m ad e with the LA N 1 an d CLK 1 p o rts .

Making Ext erna l Cl ock Connecti ons

If external eq ui p m en t o r a lo cal d ig ital centra l o ffice is to provide sy nc hr o ni zat io n , th e external cloc k source is connected to t he P X M 1-U I o r PX M - U I-S 3 b ack c ar d.

Chapter2 Module and Service Descriptions

Stratum 4 clocking

Stratum 3 clocking

Note The LAN 2 a nd CLK2 po r ts on the PX M- U I -S 3 a re N OT sup p or te d in this re lease. All external

External cl ocki ng so ur ce s ar e connected t o th e P XM 1 -U I b ack card (Figure 2-2).

• One RJ-45/48 connector for external T1 or E1 clock input.

• One BNC connector for E1 clock input.

External cl ocki ng so ur ce s ar e connected t o th e P XM - U I-S 3 ba ck ca rd ( Figure 2-3).

• For T1 and E1 Stratum 3 external clock input, connect the source to the RJ-45/48 connector labeled

“CLK1.”

connecti on s ar e m ad e with the LA N 1 an d CLK 1 p o rts .

See Chap te r 5, “Configuring the MGX 8230 Shelf” for further information on configuring an external clocking so ur ce.

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Chapter2 Module and Service Descriptions

PXM1 Back Cards

This se cti o n contain s illustra tio n s o f th e f o llow in g PXM1 c ar ds.

• Figure 2-2: User In te rface Back Ca rd (PX M 1 -U I )

• Figure 2-3: Use r Interf ac e Back Car d (PXM- UI-S3 ): Stra t um 3 Clock ing

• Figure 2-4: OC-12 Long-Reach Back Card (SMFLR-1-622/B)

• Figure 2-5: OC-12 Intermediate-Reach Back Card (SMFIR-1-622/B)

• Figure 2-6: OC-3 Four-Port Back Card (SMF-155/B)

• Figure 2-7: Two-port T3 Back Card (BNC-2T3)

• Figure 2-8: Two-port E3 Back Card (BNC-2E3)

PXM1 User Interface Back Cards

Refe r to PXM1 U ser I nt erfac e B ack Cards, pag e 2 - 3 for descriptions of the features available with the PXM1 User Interface b ack cards.

Processor Switch ing Module

Figure 2-2 User Interface Back Card (PXM1-UI)

PXM1-UI

T1 C

L O C K

M P

C P

L A N

T1 clock

Maintenance port

Control port

LAN port

E1 clock source

E1 CLOCK

A L A R M

Alarm outputs

57659

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Processor Sw itching Modu le

Figure 2-3 User Interface Back Card (PXM-UI-S3): Stratum 3 Clocking

C P

M P

L A N

PXM

UI-S3

EXT CLK 1

EXT CLK 2

Chapter2 Module and Service Descriptions

Control port Maintenance port

LAN 1 port

LAN 2 port (not supported in this release)

External Clock 1 (connection for T1 and E1 external clock sources)

External Clock 2 (not supported in this release)

Alarm Output Connection

Dry contact relay closures are available for forwarding MGX 8230 alarms to an alarm system. Separate visual and audible alarm outputs are available for major and minor alarm outputs. The MGX 8230 alarm outputs a r e availa bl e o n a D B - 15 c on ne ct or o n th e P X M - U I-S 3 b ack ca r d faceplate.

A L A R M

Alarm port

46010

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Chapter2 Module and Service Descriptions

SMFLR-1-622 Back Card

An illustration of the long-reach OC-12 card appears in Figure 2-4. For specifications on this card, refer to Ap pendix A, “Technical Speci fica tio n s.” Note that Automatic Protection Switching (APS) requires the “B” model—an SMFLR-1-622/B.

Figure 2-4 OC-12 Long-Reach Back Card (SMFLR-1-622/B)

SMFLR-1-622

ENABLED

Processor Switch ing Module

SIGNAL

12210

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Processor Sw itching Modu le

SMFIR-1-622 Back Card

The intermediate-re ach O C-12 ba ck car d a pp ears in Figure 2-5. For sp e c i fi cation s on this c a r d , refer to

Appendix A, “Technical Spe cifi cat io ns.” Note th at Au to matic Protection Sw itching (A P S ) req ui r es th e

“B” model—an SMFIR-1-622/B.

Figure 2-5 OC-12 Intermediate-Reach Back Card (SMFIR-1-622/B)

SMFLR-1-622

ENABLED

Chapter2 Module and Service Descriptions

SIGNAL

12210

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Chapter2 Module and Service Descriptions

SMF-155 Back Card

The SMF- 155 b ack card provid es a physical s i ngle-mode fibe r op ti c S ON ET OC-3 i nt erfac e t ha t conform s to A N SI T1 .1 0 5 a nd G R - 253- C O RE s ta nd ar d s. Th is interface uses SC conn ec to r s , an d redunda nt co n figur at io ns ar e s u p por ted through Y-cables. For sp ec ific at io ns on this card, refer t o

Appendix A, “Technical Spe cifi cat io ns.” Note th at Au to matic Protection Sw itching (A P S ) req ui r es th e

“B” model—an SMF-155/B.

Figure 2-6 OC-3 Four-Port Back Card (SMF-155/B)

SC-4-155

ENABLED

SIGNAL

P O R T

SIGNAL

P O R T

SIGNAL

P O R T

SIGNAL

P O R T

Processor Switch ing Module

12206

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Processor Sw itching Modu le

BNC-2T3 Back Ca r d

For card sp eci fica tio n s, r ef er t o Appendix A, “Technical S pecific atio ns. ”

Figure 2-7 Two-port T3 Back Card (BNC-2T3)

Chapter2 Module and Service Descriptions

BNC-2T3

SIGNAL

PORT 1

SIGNAL

PORT 2

12209

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Chapter2 Module and Service Descriptions

BNC-2E3 Back Ca r d

Two versions of the BNC-2E3 card are available. The BNC-2E3A applies to Australia only, and the BNC-2E3 applies to all other sites that require E3 lines on the PXM1 uplink card. An illustration of the two-port E3 b ack ca rd a pp ea rs in Figure 2-8. For specificati on s on this car d , r ef er t o Appendix A,

“Technical Speci fica ti ons .”

Figure 2-8 Two-port E3 Back Card (BNC-2E3)

BNC-2T3

SIGNAL

Processor Switch ing Module

PORT 1

SIGNAL

PORT 2

12209

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Service R esource Module

Service Resource Module

A service resource module (SRM) provides three main functions for the service modules:

• Bit Erro r Rate Testing

• 1:N Service Module Redundancy

• Bulk Distribu tion Mo de

See Figure 2-9 for an illustration of the MGX-SRM-3T3/C front card and the MGX-BNC-3T3-M back card.

Bit Error Rate Testing

After a service module line or port is put into loopback mode, the SRM can generate a test pattern over the looped line or port, rea d the received looped data, and report on the error rate. This operation can be performed on a comple te T1 or E1 li ne, on a fractional T1 or E1 line, on a SD0 bundle (N x DS 0), or on a single DS0 channel. The SRM can support BERT only one line or channel at a time. BERT is capable of generating a variety of test patterns, including all ones, all zeros, alternate one zero, double alternate one zero, 223-1, 220-1, 215-1, 211-1, 29-1, 1 in 8, 1 in 24, DDS1, DDS2, DDS3, DDS4, and DDS5.

Chapter2 Module and Service Descriptions

1:N Service Module Redundancy

Service module redundancy provides 1:N redundancy for multiple groups of service modules (a group consists of N active and one standby servi ce module). The r ed und an t s e rvice module in a group mus t be a superset (wit h respect to functionality) of the car ds. Upon the detection of a failure in any of the service modules, the packets destined for the failed service module are carried over the CellBus to t he S RM i n it s ch ass i s. Th e S R M r eceives the pac kets an d s witches them to the backup service m o du le v ia the Cel lB us.

Bulk Distribution Mode

Each of the T3 ports can be used to support up to 28 multiplexed T1 lines, which are distributed to T1 servic e mo d ule ports in th e switch. C al l e d bulk dist ri but ion, this feature is perform e d wh en the SRM is in “bulk mode.” The purpose of this feature is to allow large numbers of T1 lines to be supported over T3 line s r ath er t ha n over individ ua l T1 lines.

Any T1 c h annel in a T3 line can b e d is tributed to any e ig h t p o rt s e r v ice modu l e i n any slo t . Each MGX 8230 shelf can support up to 64 T1 lines.

The SRM-3T3 can also be operated in “nonbulk mode” on a port-by-port basis. For a port configured in nonbulk mode, bulk distribution is disabled and the SRM provides BERT and 1:N redundancy functions only.

Linking the MGX-SRM-3T3/C to a destination card causes the switch to take CPE traffic through the MGX-SR M -3T3 /C r ath er t ha n the T1 car d ’s line module. Linkage is a card-level condition. If you link just one T1 channel on a service module to the MGX-SRM-3T3/C, the back card on the service module becomes inopera tiv e, so you mus t link a ll othe r T1 port s on tha t ser vice m odule to the MG X-SRM-3T3/ C if you wan t t h em t o oper at e.

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Chapter2 Module and Service Descriptions

Module Requirements with B ulk D i stribu tion and Redundancy

The use of bu lk d istr i bution a ffec ts t he r eq ui re men ts for S R M an d ser vi ce m o du le ba ck ca rd s:

• With bulk distribution and 1:N redundancy support by way of the distribution bus, the service

modules do no t us e back cards.

• For just 1: N redundancy by way of t he redundancy bu s , the sup p or t e d servi ce m o dules must have

back cards —including one special redundancy back card. E1 redundancy requires the AX-R-RJ48-8E or AX-R-SMB-8E1 line module, and T1 redundancy requires the R-RJ48-8T1 line module.

• For bulk distribution, the T3 lines connect to an external multiplexer. The T1 lines on the other side

of the multiplexer connect to the CPE. The SRM converts the received traffic from its T3 lines to T1 channels an d s en d s th e da ta to lin ked service modules. For instructions on linking T1 channels and card slots to the MGX-SRM-3T3/C, see Chapter 6, “Card and Service Configuration”

Installation Requirements for the MGX-SRM-3T3/C

The followin g ar e car d -l evel char ac ter istics that ap p ly to a ny SR M installa t io n:

Service Resource Module

• Only MGX-SRM-3T3/C cards can be installed in slots 7 and 14.

• No other service modules can be installed in slots 7 and 14. These slots do not have cell bus

connecti on s. The SRM m od u le s use a local bus to co m mu n ic ate with th e P X M .

• The PXM1 in slot 1 controls the SRM in slot 7. The PXM1 in slot 2 controlsthe SRM in slot 14.

• Either S RM in slot 7 o r 1 4 can b e a ctive ( d ep en ding o n th e active PXM1).

SRM Illustration and LED Indicators

Table 2-1 and Table 2-2 describe the SRM-3T3 LED faceplate indicators.

Table 2-1 LED Indicators for the SRM-3 T3/C

Type of LED Color Meaning

ACTIVE (ACT) LE D Green Indicates card set is in ac tive mo d e. STANDBY (STBY)

LED FAIL (FAIL) LED Red Indicates BNM-155 card set has failed or the line

Table 2-2 Line Redundancy LED Indicat ors for the SRM-3T3/C

Yellow Indicates card set is in standby mode.

module is miss i ng.

Type of LED Color Meaning

(1:N RED ) LED Green On indicat es 1 :N red u nd an cy has b een i nvoked.

BERT (BERT) LED Green On indicat es BERT function is ac tive.

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Off indicates 1:N redundancy is not active.

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Service R esource Module

Chapter2 Module and Service Descriptions

Figure 2-9 MGX-SRM-3T3/C Card Set

BNM 3T3 M

CLEI Code Label

ACT

STBY

FAIL

LIN RED

SRM

3T3

Front card Back card

S6181

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Chapter2 Module and Service Descriptions

ATM UNI Servi ce Module (AUSM)

The main function of the AUSM cards is to provide an A TM UNI/NNI interface at T1 or E1 rates so that ATM UNI user devices can transmit and receive traffic. This section contains the following information:

• AUSM Fe a tu r e s , page 2-15

• AUSM Front Card Illustration and LED Description, page 2-17

• Back Cards for the AUSM/B, page 2-18

AUSM Features

The MGX- AUSM-8T 1/ B an d M G X -AUSM-8E1/B (AUSM) ar e m ul tip u rpo s e fr on t car d s th at u se an eight-p ort T1 or E 1 back card to p r ovide n ative ATM UNI in te rfaces.

A single AUSM/B card can provide hot s tandby redu nda ncy for all act ive AUSM/B cards of the same type (1:N redundancy).

AUSM/B modules are supported by standards-based management tools, including Simple Network Management Protocol (SNMP), Trivial File Transfer Protocol (TFTP) for configuration and statistics collection, and a command-line interface. Cisco’s W AN Manager service management tool provides full graphical user interface support for connection and equipment management.

ATM UNI Service Module (AUSM)

Quality of Service (QoS) Management

Consistent with Cisco’s intellige nt q uality of service (Q o S ) managem e nt f eatures, AUSM/ B cards support p er - VC qu euin g on i ngr ess a nd mul tipl e class - of-se rv ice queue s on e gre ss . AUSM/B cards fully support continuous bit rate (CBR) , variable bit rate (VBR), unspecified bit rate (UBR), and available bit rate (ABR) service classes.

Inverse Multiplexing

AUSM/B cards als o su p po r t ATM Forum -c om pl ian t inverse multi plexing fo r ATM(IMA). T hi s capability enables multiple T1 or E1 lines to be grouped into a single high-speed ATM port. This n x T1 and n x E1 capability fills the gap between T1/E1 and T3/E3, providing bandwidth up to 12 Mbps (n x T1) or 16 Mbps (n x E1), wi th ou t requiring a T3 /E 3 c ir c u it.

Inverse Multiplexing for ATM

• ATM Forum 1.0- co m pl iant inverse m u lt ip lexing for ATM (IMA)

• Support for differential delays of up to 200 milliseconds across the constituent T1s (up to 250 ms)

and E1s of an IMA group

• With IMA disabled, each T1 or E1 interface configured as a single port running at full line rate

• With IMA, any group of n x T1s or n x E1s can support an n x T1 or n x E1 port

• With IMA , mul tipl e IMA por ts of any c on f igura t ion supp orted pe r card (a sp ecific T1 or E1 line can

be in only one T1/E1 or IMA port at a time)

• Upon T1/E1 circ ui t fa il ure, an IMA p ort auto mat ica lly a dj usts t o cont i nue op erat io n o ve r rema ini ng

circuits

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ATM UNI Service Module (AUSM)

Physical Layer Features

All Cards

• Transmitter is lo op - ti m ed to r eceiver or sy n ch ro n ized to sh elf

• Loop -up , lo op- down pa tte rn gen era tio n an d verific ati on

• Transmission convergence sublayer functions per ITU G.804

• LCV, LES, LSES, CV, ES, SES, SEFS, AISS, UAS performance statistics

• Bit rate erro r te s t ( B ERT) and extended lo op b ack patter n g en er a ti on /verification ( w ith opti on al

SRM)

• 1:N redundancy within a gr oup of n + 1 A USM/ B car ds of s ame typ e on a shelf (wit h opt iona l SRM)

• LOS, OOF, AIS, RAI alarms

T1 Cards

• Eight T1 (1.544 Mbps +/–50 bps) lines per card

• B8ZS or AMI line coding

• ANSI T1.408 extended Super Frame format line framing

Chapter2 Module and Service Descriptions

E1 Cards

• ANSI T1.408 support for detection and display of received T1 ESF loopback codes on extended

Super Frame (ESF) data link

• Cell tran s f er capacity 36 2 3 c ells/sec per T1

• Eight E1 (2.048 Mbps +/–50 bps) lines per card

• HDB3 or AMI line coding

• ITU G.704 16-frame multiframe line framing and clear channel for E1

• BERT and extended loopback pattern generation/verification (with optional SRM)

• Cell transfer capacity 4528 cells/sec per E1 (G.704), 4830 cells/sec per E1 (clear channel)

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Chapter2 Module and Service Descriptions

AUSM Front Card Illustration and LED Description

The AUSM/B front card oversees all major functions of the ATM interface. It contains firmware for both the T1 and the E1 line interfaces and downloads from the PXM1 the appropriate code when it recognizes the back card type. An illustration of an eight-port AUSM/B front card appears in Figure 2- 10. For specifications on this card, refer to Appendix A, “Technical Sp ecifications.”

Figure 2-10 AUSM/B-8T1 or AUSM/B-8E1 Front Card

CLEI Code Label

ATM UNI Service Module (AUSM)

ACT

STBY

FAIL

PORT 1

PORT 2

PORT 3

PORT 4

PORT 5

PORT 6

PORT 7

PORT 8

AUSM

8T1/E1

Front card

S6183

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ATM UNI Service Module (AUSM)

Table 2-3 contains a list of eight-port LED indicators:

Table 2-3 Eight-Port AUSM/B LED Indicators

Type of LED Color Description

PORT LED Green Green indic ate s th e po r t is ac tive.

ACTIVE LED Green On indicates the card set is in active mode. STANDBY LED Yellow Slow blink with Active LED off means the card is in the boot

FAIL LED Red Steady Red with Active and Standby LEDs off indicates either the

Chapter2 Module and Service Descriptions

Red Red in d ica tes a local ala rm on the p ort. Yellow Yellow indi ca tes a r emote alarm o n th e p o rt .

Off indicat es t he port ha s n ot b een ac tivated ( u pped ).

state. Fast blink wi th S tandby L ED on means card is r eceiving

firmware. Fast bl i nk ind ic ate s t he s ervi ce modul e is pas sin g BRAM ch anne l

information to the PXM1. Steady yellow indic a te s th e car d is in S ta nd by m o de an d the

firmware is execu t in g ADM I N co d e.

card is in the Reset co n di tio n , t he card has fail ed, or the car d se t is not co m p let e (no line module).

Steady Re d wi th A ct ive LED on indic ates the car d wa s active prior to failing.

Steady Re d wit h Stan d by LED on indic ates the card was standby prior to failing.

Back Cards for the AUSM/B

The MGX-AUSM-8T1/B and MGX-AUSM-8E1/B use th e g ener ic e ig ht-po rt T1 or E1 li ne modu le s th at operate with the eig h t- po r t s er vi ce m od u les (see Figure 2-11 on page 2-19).

• AX-RJ48-T1: provides eight RJ-48 connectors for T1 lines.

• AX-RJ48-E1: provides eight RJ-48 connectors for E1 lines.

• AX-SMB-E1: provides eight pairs of SMB connectors for E1 lines.

1:N Redundancy support for the AUSM requires the special versions of the RJ-45 back cards (Figure 2-11 on page 2-19). These back cards are:

• AX-R-RJ48-T1

• AX-R-RJ48-E1

• AX-R-SMB-E1

Note Redundanc y su ppo rt differs for the MGX-A USM-8T 1/B a nd MGX-AUSM-8E1/B. For de tail s on the

requirements for redundancy through an MGX-SRM-3T3/C, refer to “Serv ice R es o urce Module,

page 2-12.”

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Chapter2 Module and Service Descriptions

Figure 2-1 1 RJ-48 and SMB Back Car ds for the MGX-AUSM-8T1E1/B

ATM UNI Service Module (AUSM)

RJ48-8E1

RX1

TX1

RX2

TX2

RX3

TX3

RX4

TX4

RX5

TX5

RX6

TX6

RX7

RJ48-8T1

R E D U N D A N

RJ48-8E1

R E D U N D A N

SMB-8E1

E D U N D

A N

T1 RJ48

back card

E1RJ48

back card

TX7

RX8

TX8

E1 SMB

back card

C Y

T1 RJ48

redundant

8-port

back card

C Y

E1 RJ48

redundant

8-port

back card

18739

E1 SMB

redundant

8-port

back card

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Frame Relay Service Modules

Frame Relay Ser v ice Modules

The primary function of the Frame Relay Service Modules (FRSM) is to convert between the Frame Relay formatted data and ATM/AAL5 cell-formatted data. For an individual connection, you can config ure netw ork inte rworkin g (NIW), serv ice inte rwork ing (SIW), ATM-to-Frame Relay UNI (FUNI) , or frame f orwa rd i ng. A n F R S M co nverts th e h ead er f o rm at and tran slat es the addre ss f or:

• Frame Relay port number and DLCI

• ATM-Fram e U N I (FU N I ) po r t nu m be r an d fr am e ad d re ss o r fr am e f o rwar di n g po rt

• ATM vir t ual conn ect io n identifier ( V P I/ V CI )

See Configuring Frame Relay Service, page 6-27 for instructions to configure the FRSMs. This section contains the following information:

• Feat ur es Common to A l l F R S Ms, pag e 2- 20.

• Redundancy for Frame Service Modules, page 2-22.

• Connection Types on the FRSM, page 2-22.

• Types of Frame Service Modules, page 2-27.

Chapter2 Module and Service Descriptions

–

FRSMs for T1 and E1 Lines, page 2-27.

–

FRSMs for T3 and E3 lines, page 2-32.

–

FRSMs for Serial Connections, page 2-38.

Featur es Co mm on to All FRSMs

This section describes features common to all FRSMs. For features specific to the individual module types, see Types of Frame Service Modules, page 2-27. For infor mation to c on fig ur e th e F R S M s , see

Configuring Frame Relay Service, page 6-27.

Data-Link Layer features

• Each logical port on an FRSM independently configurable to run Frame Relay UNI, Frame Relay

NNI, ATM FUNI, or frame forwarding.

• 7E flag s used to de lin ea te frames (w ith bit stuffing to p revent f als e f lag s) an d f or i nt er fra m e g ap s .

• One f lag b e t w een fra m es is c on sid er ed val id u pon r ecei p t.

• Supports configuration of one- or two-flag minimum interframe gap for transmission.

• Valid frame sizes from 5 up to 4510 octets.

Frame Rel ay features

2-20

• Each lo gi cal port inde pe nd en tl y co nfigu r ab le as Fr ame Relay U NI o r F r ame Relay NN I .

• Meets ANSI T1.618, using two-octet headers.

• Interpreted CCITT-16 CRC at end of the frame (frame discard if in error).

• Supports ITU-T Q.933 Annex A, ANSI T1.617 Annex D, and LMI local management for

semipermanent virtual circuits (both UNI and NNI portions); enhanced LMI provides autoconfiguration of traffic management parameters for attached Cisco routers.

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Chapter2 Module and Service Descriptions

• Frame Relay- to-ATM netw ork inte rworki ng (FRF.5) and Frame Relay -to-ATM servi ce inte rwor king

(FRF.8), both transparent and translation modes, configured on a per-permanent virtual circuit (PVC) basis.

• Standards-based CIR policing and DE tagging/discarding.

• End-to-end ForeSight® rate-based flow control option.

• Capability to extend ForeSight closed-loop congestion management between two Cisco networks

across Fr ame Relay-U N I or F r ame Relay-N N I u sin g AN SI T1.618 co nso li da ted l in k -l ay er management (CLLM) messages.

• Support for high-priority, rt-VBR, nrt-VBR, VBR, and ABR-ForeSight QoS.

• Standard ABR (TM 4.0 compliant).

Note Note: the Foresight option is not available on MGX-FRSM-HS1/B.

ATM FUNI features

• ATM Forum FUNI mode 1A supported.

Frame Relay Service Modules

• Interpreted CCITT-16 CRC at end of the frame (frame discard if in error).

• AAL5 mapping of user payload to ATM.

• Supports 16 VPI values (15 plus the zero VPI); supports virtual path connections (VPCs) for all

nonzero VPI values (up to 15 VPCs).

• Supports 64 VCI value.s

• Supports OAM frame/cell flows.

• Standards-based usage parameter control.

• Support for high-priority, rt-VBR, nrt-VBR, VBR, and ABR-ForeSight QoS.

• Standard ABR (TM 4.0 compliant).

Note Note: the Foresight option is not available on MGX-FRSM-HS1/B.

Frame Forwarding Features

• No assumptions made on the frame header format.

• Interpreted CCITT-16 CRC at end of the frame (with frame dropping on an error).

• If a co n ne cti on i s set up, all fr am es ar e r o ut ed to /f r o m th at connection; othe r wi se t he f ra m e is

discarded.

• No translation/mapping attempted between frame header bits and ATM layer EFCI and DE bits.

• A sing le s et of Fr ame Relay tr affic acc es s p ar ameters (fo r ex amp le , CIR) is co nfigu r ed f or t he

logical port in frame-forwarding mode; all arriving frames are treated as if they arrived without a set DE bit; if the frame is determined to exceed the committed rate (exceeding CIR), the CLP of all cells associated with that frame are set to indicate low priority; if the frame exceeds the total rate allowed for committed and u nco mmitted tr a ffic, the f ra m e i s d is c ar de d.

• Support for high-priority, rt-VBR, nrt-VBR, VBR, and ABR-ForeSight QoS.

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Frame Relay Service Modules

• Standard ABR (TM 4.0 compliant).

Note Note: the Foresight option is not available on MGX-FRSM-HS1/B.

Redundan cy for Frame Service Mo dules

FRSMs can have either hot standby, 1:1 redundancy, or 1:N redundancy.

• For 1:1 redu n da ncy, a Y-cable i s n ece s sar y.

• MGX-FRSM-2CT3, MGX-FRSM-2T3E3, and MGX-FRSM-HS2 use 1:1 Y-cable redundancy.

• For 1:N redundancy, an MGX-SRM-3T3/C is required (no Y-cabling).

• Differences may exist in the w ay the MGX-SRM-3T 3/C supports redundancy for a part icular T1 or

E1 con figur ation. Re fe r to the sectio n titled “Service Resource Module” in t hi s ch ap te r an d t h e Service Resource Module description in Chapter 6, “Card an d S er v ice Configur ation”

Note The MGX-FRSM-HS1/B does not support redundancy.

Chapter2 Module and Service Descriptions

Hot Standby

For hot stan d by, place th e ca r d se ts i n slo ts on the sam e card shelf and c on n ect u sin g an approp ri ate Y-cable to connect each hot standby pair. To view the hot standby status of the system, use the dsphotstandby command.

1:1 Redundancy

For 1: 1 redu nda nc y, place the card sets in a dj ace nt s lots an d conn ec t a Y-cable for eac h p air o f a ctive an d standby ports. On the CLI, configure the card for redundancy by executing the addred command. For instructions on how to use the CiscoView application to configure redundancy, refer to the CiscoView user-documentation.

1:N Redundancy

1:N redun da ncy fo r the ei ght -p ort FR SMs req uir es an MGX -SRM- 3T3/ C. W it h 1: N redu ndancy, a gr oup of service modules includes one standby module. For installation requirements, see “Service R eso ur ce

Module, page 2-12”. For configuration requirements, see the section on the MGX-SRM-3T3/C in Chapter 6, “Card and Ser vice Confi gurati on”

Connecti on Types on the FRSM

2-22

The following sections describe NIW, SIW , FUNI, and Frame forwarding. Topics include translation and congestion management.

• Fram e Re lay- to-ATM Service Int erwo rki ng, page 2- 24

• ATM Frame-to-Use r N etw ork I nt er fac e, pa ge 2-26

• Fra me Fo rwar din g, pa ge 2-26

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Frame Relay-to-ATM Network Interworking

Frame Relay-to-ATM network interworking (NIW) supports a permanent virtual connection (PVC) between two Frame Relay users over a Cisco network or a multi-vendor network. The traffic crosses the network as ATM cells. To specify NI W f o r a c on ne ct io n, ad d th e connectio n wi th a channel type of “network interworking.” For an illustration of a BPX 8620 network with NIW connections, see

Figure 2-12.

Figure 2-12 BPX 8620 Network with NIW Connections

Frame Relay Service Modules

FRAD

(router)

Frame Relay

DS1

FRSM

Congestion Indication for NIW Connections

In addition to frame-to-cell and DLCI to VPI/VCI conversion, the network interworking feature maps cell loss priority (CLP) and congestion information from Frame Relay to ATM formats. The CLP and congestion indicators can be modified for individual connections using the cnfchanmap command.

Frame Relay–to–ATM Direction

Each Frame Rela y/ ATM network int erwo rki ng conne cti on ca n be conf i gur ed as on e o f th e foll o wi ng DE to CLP mapping schemes:

• DE bit in the Fr am e Relay fram e is mapped to th e C L P bit of eve ry ATM cell ge nerated by t he

segmentation process.

MGX 8850

BPX 8620 network

PVCs

MGX 8430

Frame Relay

MGX 8850

Frame Relay

FRSM

DS1

FRSM

FRAD

(router)

DS1

FRAD

(router)

17908

• CLP is always 0.

• CLP is always 1.

ATM–to– Frame Relay Direction

Each Frame Relay/ATM network interworking connection can be configured as one of the following CLP to D E mappi n g s c hemes:

• If one or more ATM cells be l ongin g t o a fra me h as i ts C LP f ie ld s et, t he DE f ie ld of the Fra me R ela y

frame will be s et .

• No mapping from CLP to DE.

Congestion Indicatio n

Congest ion on the Frame Re lay/ATM network interworking connection is flagged by the EFCI bit. The setting of this feature is dependent on traffic direction, as described below.

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Frame Relay Service Modules

Frame Relay–to–ATM Direction

EFCI is always se t t o 0.

ATM–to–Frame Relay Direction

If the EFC I field in the last ATM cell of a segm e nt ed f ra me r ec eived is s e t, then FEC N o f th e Fr am e Relay frame will be set.

PVC Status Management

The m a na gement of ATM laye r and FR P V C statu s m a nagement can o perate independently. The P VC status from the ATM layer is used when determining the status of the FR PVC. However, no direct actions of mapping LMI A bit to OAM AIS is performed.

Frame Relay-to-ATM Service Interworking

By specifying “service interworking” as the channel type when adding a Frame Relay PVC to an FRSM, all PVC d ata is subject to se r v ice in terworkin g tr an slation and m a pp ing in bot h the Frame Relay–to–ATM and ATM–to –Frame Relay directions. Figure 2-13 is an illustration of typical SIW connecti on s.

Chapter2 Module and Service Descriptions

Figure 2-13 BPX 8600 Seri es Network with SIW Connections

ATM FUNI CPE

ATM UNI CPE

T1 or E1

FRSM

RPM

MGX 8850

BPX 8620 network

PVCs

BPX 8620

B X

T3, E3, OC3

ATM-UNI CPE

MGX 8850

FRSM

FR UNI

CPE

In Figure 2-13, an MGX 8230 node on the right has three Frame Relay SIW connections te rminating o n an FRSM. Th r ee f ar-en d ter minations f or t he se connectio ns ap pe ar in o th er p arts of Figure 2-13:

• ATM FUNI (framed UNI) port on an FRSM

• ATM UNI port on an RPM

• ATM UNI port on a BPX 8600 series BXM card

17909

2-24

In addition to frame-to-cell and DLCI-to-VPI/VCI conversion, SIW maps cell loss priority and conges t io n data betwee n th e Fr a m e Relay a n d ATM formats and is FRF.8-com p li a n t. I t provid es f u ll support for r outed and br id g ed PD U s, transparen t an d tr an slat io n m o de s, and VP t rans l ati o n.

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Cell Loss Priority

In addition to frame-to-cell and DLCI-to-VPI/VCI conversion, the SIW feature maps cell loss priority (CLP) and congestion information from Frame Relay-to-ATM formats and is FRF.8-compliant. It provide s full support f or r o uted and bridg ed P DUs, transpar en t and tr a n sl a tion modes, and V P translation. The CL P a n d congest io n param e t ers can be modi fied f or indivi du a l c o n nections w ith the cnfchanmap command.

Frame Relay–to–ATM Direction

Each Frame Relay– to–ATM service interworking connection can be configured as one of the following Discard Eligibi lit y (D E) to Ce ll L o s s P r io r ity ( CLP) sch em es:

• DE bit in the Fr am e Relay fram e is mapped to th e C L P bit of eve ry ATM cell ge nerated by t he

segmentat io n pr oc es s o f th e frame.

• CLP is always 0.

• CLP is always 1.

ATM–to–Frame Relay Direction

Each Frame Relay– to–ATM service interworking connection can be configured as one of the following CLP to D E mappi n g s c hemes:

• If one or more ATM cells belonging to a frame has its CLP set, the DE field of the Frame Relay

frame will be s et .

Frame Relay Service Modules

Congestion Indicatio n

• DE is always 0.

• DE is always 1.

Setting up the cell loss priority option is accompli shed through the MGX 8220 cnfchanmap (configure channel map) comm an d .

Frame Relay–to–ATM Direction

Each Frame Relay– to–ATM service interworking connection can be configured as one of the following Forward Explicit Congestion Notification (FECN) to Explicit-Forward Congestion Indicator (EFCI) schemes:

• FEC N bi t i n th e F r am e Relay fr am e is m ap pe d to the E F CI b it o f ever y ATM cell ge nerated by t he

segmentat io n pr oc es s o f th e frame.

• EFCI is always 0.

• EFCI is always 1.

ATM–to–Frame Relay Direction

Frame Relay– to–ATM service interwor ki ng conne ct io ns use the fo ll owi ng EF C I to F E C N /B E C N mapping schemes:

• If the EFCI bit in the last A TM cell of a segmented frame received is set to 1, the FECN of the Frame

Relay frame will be set to 1.

• BECN i s alw ays set t o 0.

• Setting up the congestion indication option is accomplished through the cnfchanmap (config ure

channel map) comm an d .

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Frame Relay Service Modules

Command and Response Mapping

Command/Response Mapping is provided in both directions.

Frame Relay–to–ATM Direction

The FRSM maps the C/R bit of the received Frame Relay frame to the CPCS-UU least-significant bit of the AAL5 CPCS PDU.

ATM to Frame Relay Direction

• The leas t -s ig ni fica nt b it of t he CP C S -U U is m a p pe d to th e C/ R b it of the Frame Relay fr ame.

Translation and Transparent Modes

Each service interworking (SIW) connection can exist in either translati on or transp arent mode. In translation mode, the FRSM translates protocols between the FR NLPID encapsulation (RFC 1490) and the A TM LCC encapsulation (RFC 1483). In transparent mode, the FRSM does not translate. Translation mode support includes address resolution by transforming address resolution protocol (ARP, RFC 826) and inverse A RP ( inARP, RFC 1293 ) betwee n t h e Fr a me Rela y a nd ATM f or mats.

Chapter2 Module and Service Descriptions

Frame Forwarding

The FRSM ca rd c an be co n figured as “Frame For ward in g” on a port-by-port basis. Frame fo rwar d in g oper at es t h e same as sta nd ar d Fr am e Re lay ex cep t that the F R S M :

• The 2- byte Q .9 2 2 he ad er is no t as su m ed /i nter pr et ed .

• All frames received ar e mapped to a sp eci fic co nn ec ti on if i t ex ist s . Otherwise, t he f ra mes ar e

dropped.

• No DE/CLP or FECN/EFI mapping is performed.

• “Ill egal he ad er co u nt ” and “Invalid DLCI” statistics are not kept.

• “Discarded frame count due to no connection” statis tic is kept .

ATM Frame-to-User Network Interface

All FRSMs support the ATM Frame-based User-to-Network Interface (FUNI). When a frame arrives from the FUNI interface, the FRSM removes the 2-byte FUNI header and segments the frame into ATM cells by u s in g AAL5. In the r eve rs e directi o n, t h e F RS M assemb les ATM c ells fro m the net wo r k i nto a frame by using AAL5, adds a FUNI header to the frame, and sends it to the FUNI port.

Loss Priority Indicatio n

Loss P r io rity In di c ation m ap ping is provide d in bot h direct i on s :

2-26

FUNI-to-ATM Direction

The CLP b it o n th e F UN I h ead er i s ma pp ed to t he CLP bit of ever y ATM cell that is genera ted fo r th e FUNI frame.

ATM-to-FUNI Direction

CLP bit in the F UNI h e a de r is a lways set t o 0.

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Chapter2 Module and Service Descriptions

Congestion Indicatio n

The FR S M maps conges tion in dication in bot h direc ti on s : Congestion Indication mapping is provided in both directions

FUNI-to-ATM Direction

EFCI is set to 0 for every ATM cell generated by the segmentation process.

ATM-to-FUNI Direction

If the EF CI field in the last ATM cell of a received s egmented fram e is set to 1, the CN b it in the FUN I header is s et to 1 . T h e tw o r eserve bits ( th e same pos it io ns as C/R and BECN in F ram e Relay hea de r) are always set to 0.

Types of Fra me S ervi c e Modules

There are th r ee ty pe s o f FRSMs:

• FRSMs for T1 and E1 Lines, page 2-27.

Frame Relay Service Modules

• FRSMs for T3 and E3 lines, page 2-32.

• FRSMs for Serial Connections, page 2-38.

Note For hardware and other specifications on the FRSMs, refer to Appendix A, “Technical

Specificat io n s .” For des criptions of how to configure the card, lines, and ports and add F r ame Relay

connections, refer to Chapter 6, “Card and Service Co nfigu ration”

FRSMs for T1 and E1 Lines

The eight-port FRSMs for T1 or E1 lines support channelized or unchannelized service. These cards include t h e f ol lowin g :

• AX-FRSM-8T1: supports up to eight fractional T1 line interfaces .

• AX-FRSM-8E1: supports up to eight fractional E1 line interfaces .

• AX-FRSM-8T1-C: supports up to eight channelized T1 lin e in ter fa ces.

• AX-FRSM-8E1-C: supports up to eight channelized E1 lin e in ter fa ces.

FRSM fo r T1 feat ures

The FRSM -8 T1 a nd FR S M -8T1 - C e ach p r ovide eight T1 in te rf ace s f or f u ll- d up lex co m mu n ic ations at up to 1.544 M bp s .

Each T1 li ne co nsi s ts of an RJ- 48, along wi th t hree LED indi cat or s f o r lin e stat u s . Th e F RSM - 8T 1 supports f ract iona l and un ch anne li zed T1 por t se l ect ion on a p er - T1 ba sis. The FRSM -8T1- C a llo ws f ull DS0 and n x DS0 channelization of the T1s, for a maximum of 192 ports per FRSM-8T1-C.

Key Features include:

• Eight T1 (1.544 Mbps +/-50 bps or 32 ppm) lines

• B8ZS or AMI line coding

• ANSI T1. 408 exten ded super fram e format li ne fram ing

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Frame Relay Service Modules

FRSM fo r E1 feat ures

Chapter2 Module and Service Descriptions

• Each interf ace conf igurable as a single port (FRSM-8T1) or up to 24 ports (FRSM-8T1-C) running

at full line rate, at 56 or n x 64 kbps

• Bit e rro r rate tes ter ( BERT) and exten de d loopback pattern g en er ation/verific ation (wit h optional

SRM)

• 1:N redundancy within a group of n + 1 FRSM cards on a shelf (with optional SRM)

• LOS, OOF, AIS, RAI alarms

• Transmitt er lo o p- t imed to receiver o r syn ch r on iz ed to s h el f

• Supp ort s up t o 100 0 virt ua l conn ect io ns pe r car d

The FRSM -8 E1 a nd FR S M -8E1 - C e ach p r ovide eight E1 in te rf ace s f or f u ll- d up lex co m mu n ic ations at up to 2.044 Mbps. Each E1 line consists of an RJ-48 and SMB mini-connector, along with three LED indica to rs for line statu s.

The FRSM-8E1 supports fractional and unchannelized E1 port selection on a per-E1 basis. The FRSM-8E1-C allows full DS0 and n x DS0 channelization of the E1s, for a maximum of 248 ports per FRSM-8E1-C.

LED Indicat ors

Key Features include:

• Eight E1 (2.048 Mbps +/-50 bps or 32 ppm) lines

• HDB3 or AMI line coding

• ITU G.704 16-frame multiframe line framing and clear channel E1

• Each interf ace conf igurable as a single port (FRSM-8E1) or up to 31 ports (FRSM-8E1-C) running

at full line rate, at 56 or n x 64 kbps

• BERT and extended loopback pattern generation/verification (with optional SRM)

• 1:N redundancy within a group of n + 1 FRSM cards on a shelf (with optional SRM)

• LOS, OOF, AIS, RAI alarms

• Transmitt er lo o p- t imed to receiver o r syn ch r on iz ed to s h el f

• Supp ort s up t o 100 0 virt ua l conn ect io ns pe r car d

Table 2-4 and Table 2-5 descr ib e the FRS M T1 /E1 LED fa cep l ate indica to rs.

Table 2-4 Card Level LED Indicators for the FR SM T1/ E1

Type of LED Color Meaning

ACT LED Green Active STBY LED Yellow Standby FA IL LED R ed Fail

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Chapter2 Module and Service Descriptions

Table 2-5 Line Level LED Indicators for the FRSM T1/E1

Type of LED Color Meaning

Individual P ort LED s Green Active and OK

Card Illustration s

• Figure 2-14 is an illustration of the front card (applies to both the MGX-FRSM-8T1 and

MGX-FRSM-8E1).

• Figure 2-15 is an illustration of the FRSM T1 and E1 back cards.

–

AX-RJ48-8T1 is the T1 back card. An AX-R-RJ48-8T1 is required for redundancy support.

–

AX-RJ48- 8 E1 an d AX- SM B -8 E1 are the E1 ba ck card s for R J4 8 an d SM B connecti o ns. A special AX-R-SMB-8E1 card is required for redundancy support.

Frame Relay Service Modules

Red Active and Local Alarm Yellow Active a nd R em o te Alarm

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Frame Relay Service Modules

Figure 2-14 MGX-FRSM-8T1

Chapter2 Module and Service Descriptions

ACT

STBY

FAIL

PORT 1

PORT 2

PORT 3

PORT 4

PORT 5

PORT 6

PORT 7

PORT 8

FRSM

8T1

17912

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Figure 2-15 RJ-48 and SMB Back Cards for the MGX-FRSM-8T1 /E1

Frame Relay Service Modules

RJ48-8E1

RX1

TX1

RX2

TX2

RX3

TX3

RX4

TX4

RX5

TX5

RX6

TX6

RX7

RJ48-8T1

R E D U N D A N

RJ48-8E1

R E D U N D A N

SMB-8E1

E D U N D

A N

T1 RJ48

back card

E1RJ48

back card

TX7

RX8

TX8

E1 SMB

back card

C Y

T1 RJ48

redundant

8-port

back card

C Y

E1 RJ48

redundant

8-port

back card

18739

E1 SMB

redundant

8-port

back card

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Frame Relay Service Modules

FRSMs for T3 and E3 lines

The FRS M s f or T 3 and E3 lin es in clu d e the fol lowing:

• MGX-FRSM-2CT3: provides two channelized T3 interfaces for high-density n x DS0 and DS1

frame servic es. The FR SM-2C T3 supp orts up to 400 0 virtua l conn ections pe r card.

• MGX-FRSM-2T3E3: provides unchannelized Frame Relay servi ce over two T 3 o r E 3 lin es. This

module can als o su pp o rt s ubr ate T 3 or E3 f o r tier ed D S3 o n e ach ph ysi ca l po rt. The FRSM-2 T3 E3 suppor t s up to 20 00 vi rtua l con ne ctio ns pe r car d .

Features

This section describes the features specific to the T3 and E3 interfaces. See Featur es Common to A ll

FRSMs, page 2-20 for a descrip ti on o f fe at ur es th at apply to al l F R S M m o dules.

T3 Interfaces

• Two DSX-3 (44.736 Mbps +/-20 ppm) interfaces with dual female 75-ohm BNC coaxial connectors

per port (sep ar at e R X an d TX )

• B3ZS lin e coding

Chapter2 Module and Service Descriptions

• Pulse shape conforming to ANSI T1.102.1993

• C-bit parity and M13 line framing formats

• Scrambling and subrate (FRSM-2T3E3) support of major DSU vendors

• T3 bit error rate tester (BERT) and extended loopback pattern generation/verification

• 1:1 redunda n cy with Y-cabling f o r T3 FRS M cards of the s ame typ e

• LOS, OOF, AIS, RAI, FEBE alarm detection/generation support

Note Subrate capability is not supported on Kentrox equipment.

E3 Interfaces

• Two G.703 (34.368 Mbps +/-20 ppm) interfaces with dual female 75-ohm BNC coaxial connectors

per port (sep ar at e R X an d TX )

• HDB3 line coding

• Pulse sh ap e co nf o rm in g to I TU G .7 03

• ITU G.751 line framing format

• Scrambling and subrate (FRSM-2T3E3) support of major DSU vendors

• E3 BERT and extended loopback pattern generation/verification

• 1:1 redunda n cy with Y-cabling f o r T3 FRS M cards of the s ame typ e

2-32

• LOS, OOF, AIS, RAI, FEBE alarm detection/generation support

Note Subrate capability is not supported on Kentrox equipment.

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Chapter2 Module and Service Descriptions

Card Combinations

The following card combinations are supported:

• MGX-FRSM-2CT3 front card with the BNC-2T3 back card

• MG X- F R S M -2T3E3 f ro nt card with a BNC-2T3 or B N C- 2E3 ba ck c ard

Note A speci al B NC- 2E3A b ack card a ppl ies to Aust ra lia on ly. The BNC-2E3 a pp lies to a ll ot he r s ites th at

requi re E3 li nes.

Illustrations

For Illustrations of the Very High Speed FRSM front and back cards, see the following illustrations:

• For the M G X - FRS M -2 CT3 f r on t car d , se e Figure 2-16 on page 2-34.

• For the MGX- FRSM- 2T3E 3 front card, s ee Figure 2-17 on page 2-35.

• For the MGX-BNC-2T3 back card, see Figure 2-18 on page 2-36.

• For the MGX-BNC-2E3 back card, see Figure 2-19 on page 2-37.

Frame Relay Service Modules

FRSM-2T3E3 L ED In di cators

Table 2-6 and Table 2-7 describ e th e F R SM -2 T3 E3 LE D fac ep la te in dicat or s.

Table 2-6 Card Level LED Indicat ors for the FRSM-2T3E3

Type of LED Color Meaning

ACT LED Green Active STBY LED Yellow Standby FA IL LED R ed Fail

Table 2-7 Line Level LED Indicato rs for the FRSM-2T3E3

Type of LED Color Meaning

Individual P ort LED s Green Active and OK

Red Active and Local Alarm Yellow Active a nd R em o te Alarm

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Frame Relay Service Modules

Figure 2-16 MGX-FRSM-2CT3

CLEI Code Label

Chapter2 Module and Service Descriptions

ACT

STBY

FAIL

PORT 1

PORT 2

FRSM

2CT3

Front Card

22169

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Chapter2 Module and Service Descriptions

Figure 2-17 MGX-FRSM-2T3E3

CLEI Code Label

Frame Relay Service Modules

ACT

STBY

FAIL

PORT 1

PORT 2

FRSM

2T3E3

Front Card

22170

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Frame Relay Service Modules

Figure 2-18 BNC-2T3

Chapter2 Module and Service Descriptions

BNC-2T3

SIGNAL

PORT 1

SIGNAL

PORT 2

12209

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Chapter2 Module and Service Descriptions

Figure 2-19 BNC-2E3

BNC-2T3

SIGNAL

PORT 1

SIGNAL

Frame Relay Service Modules

PORT 2

12209

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Frame Relay Service Modules

FRSMs for Serial Connections

The FRSM s th at su pp o rt ser i al connectio n s in cl ud e th e f o llowin g :

• MGX-FRSM-HS2: provides unchannelized Frame Relay service over two HSSI lines on the

SCSI2-2H SS I b ack card. Each p ort ca n op er at e i n eit he r D TE o r D CE m o de.

• MGX-FRSM-HS1/B: supports four V.35 or four X.21 ports. Each port can operate in DTE or DCE

mode. The mode depends on the type of attached cable. See MGX-FRSM-HS1/B Ca bling, page 2- 39 to dete rm in e t he correct cabling f o r th e intended mode of e ach port.

FRSM-HS1/B X.21 and V.35 Interfaces

Features spe c i fic to th e F R S M -HS 1 /B w i th X .2 1 an d V.35 interface s ar e:

• Four X.21 or four V.35 lines

• DCE /D T E selection on a per-port basis

• As DCE, clock spee ds of 48 Kbps, 56 Kbps, n x 64 Kbps up to 2 Mbps , n x 1.5 Mbps and n x 2 Mbps,

up to 8 Mbps, a re supported

• As DTE, obtains clock from line, up to 8 Mbps

Chapter2 Module and Service Descriptions

• The total maximum throughput of all lines on a card is 16Mbps

• Supports 200 DLCIs per card

• Support for per-VC queueing on ingress with closed-loop traffic management

• Support for two priority levels of egress port queues for data traffic

• Various DCE/DTE loopbacks

FRSM-HS2 HSSI Interfaces

Features spe cific to the FR S M -HS 2 w i th H S SI in ter fa ces are:

• Two HSSI lines

• DCE /D T E selection on a per-port basis

• As DCE, clock speeds of n x 1.5 Mbps and n x 2 Mbps, up to 52 Mbps, are supported

• As DTE, obtains clock from line, up to 52 Mbps

• Supports 2000 DLCIs per card

• Support for per-VC queueing on ingress with closed-loop traffic management

• Support for five classes of service (high-priority, rt-VBR, nrt-VBR, ABR, UBR) for data traffic

• Various DCE/DTE loopbacks

• 1:1 re dun da ncy with Y-cabling for F RSM -H S2 ca rds

Card Combinations

Illustrations

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• MGX-FRSM-HS2 with a SCSI2-2HSSI back card

• MGX-FRSM-HS1/B with a MGX-12IN1-S4 back card

• For the MGX- FRSM -HS 2 front card , see Figure 2-20 on page 2-41.

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Chapter2 Module and Service Descriptions

• For the M G X - SCS I2 -2 H SS I b ack ca rd, see Figure 2-22 on page 2-43.

• For the MGX- FRSM -HS 1/B front card, see Figure 2-21 on page 2-42.

• For the multifun ction MGX - 12I N1 - S4 back card, see Figure 2-23 on page 2-44. This ba ck card

supports four V.35 or four X.21 ports.

LED Indicat ors

Table 2-8 and Table 2-9 describe the FRSM T1/E1 LED faceplate indicators for bot h the FRSM-HS1/B

and the FRSM-HS2.

Table 2-8 Card Level LED Indicators for the FRSM-HS1/B and the FRSM-HS2

Type of LED Color Meaning

ACT LED Green Active STBY LED Yellow Standby FA IL LED R ed Fail

Table 2-9 Line Level LED Indicato rs for the FRSM-HS1/B and the FRSM-HS2

Frame Relay Service Modules

Type of LED Color Meaning

Individual P ort LED s Green Active and OK

MGX-FRSM-HS1/B Cabling

The cable m odel s co me f ro m t he C isco 1 2 -i n-1 ser ie s o f cab les. (See Table 2-10.) Each cable can h ave a male or fem ale conne cto r at th e far end . Also, th e available clock sou rc es depe nd on th e mode. In DTE mode, th e clo ck s o urce is either line or ST (ST is a wir e in the c ab le ). For DCE, the c lo ck source is t he front card .

See Table 2-11 for the r el at io nsh ip b et w een cabling an d m o de s an d Table 2-12 for part numbers.

Table 2-10 12IN1-S4 Back Card Cable Types

Cable Type X.21 V.35

DCE X.21 DCE V.35 DCE DTE X.21 DTE V.35 DTE

Table 2-11 Cabling and Clock Sources f or the MGX-FRSM-HS1/B

Red Active and Local Alarm Yellow Active a nd R em o te Alarm

Mode Type of Cable Clock Source Mode of Far End

DTE D TE line DC E ( mal e o r f ema le connecto r at far

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Frame Relay Service Modules

Table 2-11 Cabling and Clock Sources f or the MGX-FRSM-HS1/B

Mode Type of Cable Clock Source Mode of Far End

DCE DCE internal DTE (m al e o r fem al e c on n ect or at far

DTE_ST DTE ST line DCE (male o r fem a le connecto r at f ar

Table 2-12 Cabling Types and Part Numbers X.21 and V.35

Type of Cable Far End Connector Part Number

X.21 DTE male (standard) 72-1440-01 X.21 DCE female (standard) 72-1427-01 V.35 DTE male (standard) 72-1428-01 V.35 DTE female (atypical) 72-1436-01 V.35 DCE female (standard) 72-1429-01 V.35 DCE male (atypical) 72-1437-01 V.35 DTE-DCE 72-1441-01 Straight-through 72-1478-01 Loopback plug 72-1479-01

Chapter2 Module and Service Descriptions

end)

Note The cable ty pe an d pa rt n um be r ar e p ri n ted o n a p la sti c b an d lo cat ed n ear t he s mal ler connect o r.

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Chapter2 Module and Service Descriptions

Figure 2-20 MGX-FRSM-HS2

CLEI Code Label

Frame Relay Service Modules

ACT

STBY

FAIL

PORT 1

PORT 2

FRSM

HS2

Front Card

17948

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Frame Relay Service Modules

Figure 2-21 MGX-FRSM-HS1/B Front Card Faceplate

CLEI Code Label

Chapter2 Module and Service Descriptions

ACT

STBY

FAIL

PORT 1

PORT 2

FRSM

HS1/B

Front Card

26695

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Chapter2 Module and Service Descriptions

Figure 2-22 SCSI2-2HSSI

SCSI2-2HSSI-LM

P O R

Frame Relay Service Modules

P O R

17949

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Frame Relay Service Modules

Figure 2-23 12IN1 S4 Back Card Faceplate

ENABLED

12-IN-1

P O R T

Chapter2 Module and Service Descriptions

P O R T

26696

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Chapter2 Module and Service Descriptions

Circuit E mula t i on S ervi ce Modules

The main function of the Circuit Emulation Service Module (CESM) is to provide a constant bit rate (CBR) c ir cu it emulatio n s er v ice by co nverti ng d at a s t r eam s into CBR AA L 1 ce lls for tra ns p o rt across an ATM ne tw ork . Th e CES M s up p orts the CES- IS s pe cifi cat io ns of t he ATM Forum.

There are two types of CESM modules:

• CES M for T1 and E1 lines, page 2-45.

• CES M for T3 and E3 lines, page 2-50.

CESM fo r T1 and E1 l i nes

The eight-port AX-CESM-8T1 and AX-CESM-8E1 models allow individual physical ports to be configured for st ru ct ured o r u nst ru ct ured d a t a t ra nsf er. The CESM provid es co nst an t- bi t-r ate ( CB R) services over an ATM network. It allows circuit-based equipment, such as PBXs, to be interconnected over an ATM backbone via CBR connections. The eight port CESM cards support both channelized (n x 64 Kbps) and unchannelized (T1/E1) circuit-based equipment. In ATM Forum terminology, the terms structured data transfer (SDT) and unstructured data transfer (UDT) are used for channelized and unchann eli zed c ir cu it em u la ti on , res p ec tively.

Frame Relay Service Modules

In addit ion , f lex ib le clocking m ec ha ni s ms a re p rovid ed t o m eet d iffer en t applicatio n re qu ir em en ts . Synchronous clocking and asynchronous clocking, using either SRTS or Adaptive clock recovery, are both supported.

As an enhancement, dynamic bandwidth allocation is supported via on-hook/off-hook detection to reduce backbone bandwidth consumed when it is not required by the applications. This allows other traffic streams, such as VBR and ABR traffic, to take advantage of the bandwidth normally reserved for the circu it tr affic .

CESM T1 and E1 Features

The eight port CESM cards offer the following key features for both T1 and E1 interfaces:

• Standards-based AAL1

• Comp li an t w ith ATM Fo ru m CES---V.2.0

• Cho ice of s truc ture d or un str uctu r ed data tran sfe r per ph ys ica l inter fac e

• Time slots must be contiguous for n x 64-kbps fractional T1/E1 service

• Any n x 64-k b ps c h annel ca n be mapp ed to any virtu a l c ircuit ( VC)

• Choice of partially filled AAL1 cells per VC

• Supports Super Frame (SF) and Extended Superframe (ESF) framing modes

• Supports synchronous clocking for both UDT and SDT

• Supports asynchronous clocking for UDT, with SRTS and adaptive clock recovery methods

• ON/OFF hook detection and idle suppression using channel-associated signaling (CAS)

• Suppor ts ph y s ica l T1/E1 interfaces via b ack cards o r hi gh er sp ee d channeliz ed in terfaces usi n g

TDM infr as tru ctu r e o n b ack plan e ( S R M )

• Traffic is mapp ed b etw een service interface s an d th e ATM backplan e using standa rd s- co m p lia nt

adaptation. Consistent with Cisco's intelligent quality-of-service (QoS) management features, CESM cards support per-VC express queuing.

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Frame Relay Service Modules

• A single T1/E 1 CESM card can provide standby redundancy for all a ctive CES M cards of the sam e

type in t he s h elf ( 1 :N r ed undancy), w ith SRM.

• CESM cards are supported by standards-based management tools, including Simple Network

Management Protocol (SNMP), Trivial File Transfer Protocol (TFTP) for configuration and statistic s co ll ect io n, an d a command- l in e i nt er fac e. C isco WAN Man ag er al s o prov id es f u ll graphical user interface (GUI) support for connection and equipment management.

1:N Re du ndancy f or t he CESM T1/E1

Redunda ncy for t he A X -CE SM - 8T 1 an d A X -CESM-8E1 is available thr o ugh th e M G X - SRM - 3 T3 /C .

• 1:N redundancy requires that the group contain one redundancy back card.

• The red u ndan cy bac k car d mus t be the spec ial R -RJ4 5 ver sion (A X- R-R J48 -8 T1-L M or

AX-R-SMB-8E1-LM).

For informat ion on instal latio n requ irem ents, re fer to the Service Resource Module, page 2-12. For configuration requirements, see the “Service R es o urce Module” section on page 6-49.

For instructions on how to use the CiscoView application to configure redundancy, refer to the CiscoView user-documentation.

Chapter2 Module and Service Descriptions

Card Combinations

A card set has an AX-CESM-8T1 or AX-CESM-8E1 front card and one of the following back cards:

• AX-RJ48-8T1-LM

• AX-R-RJ48-8T1-LM (for redundancy support)

• AX-RJ48-8E1-LM

• AX-SMB-8E1-LM

• AX-R-SMB-8E1-LM (for redundancy support)

CESM T1/E1 Illustrations

• Figure 2-24 on page 2-48 shows the Front Cards for the Eight-Port CESM (T1 and E1) .

• Figure 2-25 on page 2-49 shows the RJ-48 and SMB Back Cards for the MGX-CESM-8T1E1.

LED Indicators for the Eight-Port CESM

The description of the LEDs on the eight-port CESM correspond to the illustration in Figure 2-24 on

page 2-48.

Table 2-13 LED Indicators for Eight- Port CESM

Type of LED Color Meaning

PORT LEDs Gr een Green in d ica tes th e p o rt is act ive.

ACT LED (Active) Green On indicat es t he ca rd set i s in ac tive mo d e.

Red Red indi cat es a lo cal alarm o n th e po r t. Off in d ica te s

the port has not been activated (upped).

Yellow Yellow ind icates a re m o te alarm on t he port. Off

indicates t he p or t ha s n ot b een activated (upped ).

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Table 2-13 LED Indicators for Eight- Port CESM (continue d)

Type of LED Color Meaning

STBY LED (S tan dby) Yellow Slow blink without th e A ctive LED i nd i c a te s th e c a r d

FAIL LED Red Steady Red w ith A ctive a nd St an dby LE D s o ff

Frame Relay Service Modules

is in th e b o ot sta te. Fast blink w it h the Stan dby LED ind ica tes the car d is

being dow nloa de d. Fast blink indicates the service module is passing

BRAM ch an nel infor m at io n to the PX M 1 Steady yellow indicates the card is in Standby mode

and the firmw ar e i s exec ut in g ADM I N co d e.

indicates either the card is in the Reset condition, the card has failed, or the card set is not complete (no line module).

Steady Red with Active LED on indicates the card was active prior to f ail ing.

Steady Red with Standby LED on indicates the card was stand by pr ior to failin g.

Both standby and red LED lit indicates self-test failure.

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Frame Relay Service Modules

Figure 2-24 Fr ont Cards for the Eight-P ort CESM

Chapter2 Module and Service Descriptions

• • • • •

ACT

STBY

FAIL

PORT 1

PORT 2

PORT 3

PORT 4

PORT 5

PORT 6

• • • • •

ACT

STBY

FAIL

PORT 1

PORT 2

PORT 3

PORT 4

PORT 5

PORT 6

2-48

PORT 7

PORT 8

CESM

8T1

T1 Front card

PORT 7

PORT 8

CESM

8E1

E1 Front card

17689

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Chapter2 Module and Service Descriptions

Figure 2-25 RJ-48 and SMB Back Car ds for the MGX-CESM-8T1E1

Frame Relay Service Modules

RJ48-8E1

RX1

TX1

RX2

TX2

RX3

TX3

RX4

TX4

RX5

TX5

RX6

TX6

RX7

RJ48-8T1

R E D U N D A N

RJ48-8E1

R E D U N D A N

SMB-8E1

E D U N D

A N

T1 RJ48

back card

E1RJ48

back card

TX7

RX8

TX8

E1 SMB

back card

C Y

T1 RJ48

redundant

8-port

back card

C Y

E1 RJ48

redundant

8-port

back card

18739

E1 SMB

redundant

8-port

back card

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Frame Relay Service Modules

CESM fo r T3 and E3 l i nes

The MGX-CESM-T3/E3 supports unstructured data transfer over a single T3 or E3 physical port at speeds of 44.736 Mbps (T3) or 34.368 Mbps (E3). Only synchronous timing is supported.

MGX-CESM-T3/E3 is a two-card set consisting of a front card and either a T3 back card or an E3 back card. Each back card provides two T3 or E3 ports (each port consisting of two BNC connectors). Only port one is available on the back card when used with the CESM-T3/E3 front card. 1:1 redundancy is supported through a Y-cable on the line module back cards.

• Figure 2-26 on page 2-52 is an illustration of the MGX-CESM-T3/E3 front card.

• An illustration of the CESM back card for T3 lines is shown in Figure 2-27 on page 2-53.

• An illustration of the CESM back card for E3 lines is shown in Figure 2-28 on page 2-54.

CESM- T3 /E3 Feat ures

CESM cards support circ uit emulati on services us ing standards-based adaptation layers over ATM. The CESM-T3E3 uses AAL1 for T3 or E3 unstructured transfer mode operation, per the ATM Forum's Circuit Emulation Specification, Version 2.0:

• Unstructured Support: supports T3/E3 unstructured data transfer.

Chapter2 Module and Service Descriptions

T3 Interfaces

• Synchronous clocking: synchronous timing mode only supported. Must derive clock from shelf.

• Onboard BERT: BERT support using on board BERT controller. BERT commands executed on

T3/E3 card.

• Maximum number of connections: Maximum number of connections is one. In the unstructured

mode, one logical port is used to represent the T3/E3 line and one connection is added to the port to emulate the cir cuit .

• Programmable egress buffer size and CDV tolerance settings are supported for flexible support of

jitter an d laten cy requ ireme nt s.

• Bit c ou n t i nt egr ity is m ain tained w h en A A L1 lost-ce ll condit io n is d et ected.

• The CESM card provides ingress/egress data and signaling trunk conditioning per VC as per ATM

Forum CE S V 2. 0.

• T3/E3 CESM cards can be Y-cabled to provide 1:1 hot standby redundancy of the CESM.

• CESM cards are supported by standards-based management tools, including SNMP, TFTP (for

configurati o n/ stat is t ics co llection), a nd a co m mand-line in ter fa ce. Th e C is c o WAN Manager an d CiscoView tools also provide full graphical user interface management support.

• One DSX-3 (4 4.736 Mbps +/-40 ppm) interfaces with dual female 75 -ohm BNC coaxial connectors

per port (sep ar at e R X an d TX )

• B3ZS lin e coding

2-50

• Pulse shap e confo rming to ANSI T1.102

• T3 bit error rate tester (BERT) and extended loop-up, loop-down pattern generation and verification

• 1:1 redun dancy wit h Y-cabling for T3 CESM car ds of the sam e type

• LOS alarm detection/generation support

• Transmitt er lo o p- t imed to receiver o r syn ch r on iz ed to s h el f

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Chapter2 Module and Service Descriptions

E3 Interfaces

• One G.703 (34.368 Mbps +/-20 ppm) interface with dual female 75-ohm BNC coaxial connectors

per port (sep ar at e R X an d TX )

• HDB3 line coding

• Pulse sh ap e co nf o rm in g to I TU G .7 03

• E3 BERT and extended loop-up, loop-down pattern generation and verification

• 1:1 redun dancy wit h Y-cabling for E3 CESM car ds of the sam e type

• LOS alarm detection/generation support

• Transmitt er lo o p- t imed to receiver o r syn ch r on iz ed to s h el f

LED Indicat ors

Table 2-14 LED Indicators for T3/E3 CESM

Type of LED Color Meaning

ACT LED (Act ive) G r een O n i n dicat es t he ca rd set i s in active mode. STBY LED (S tandby) Yellow

Frame Relay Service Modules

• Slow blink with the Active LED off indica tes the card is

in the bo ot state.

• Fast blink w ith th e S tan d by L ED in d ica tes th e r eceiving

firmware.

• Fast blink indicates the service module is passing BRAM

channel i nf o rm ati on t o th e P X M 1 .

• Steady yellow in dicates the card is in S tandby mode and

the firmware is executing A DM IN co de.

FA IL LED R ed

• Steady red with Active and Standby LEDs off indicates

either th e card is i n th e R es e t co n di ti on , t h e card has failed, or t he card set is no t co m p let e ( n o lin e m od u le).

• Steady red w it h A ctive L E D o n in dicates the ca rd was

active prior to f ail ing.

• Steady red with Standby LED on indicates the card was

standby pr io r to failin g.

• Both s t an dby and re d LED lit i nd icates se l f-test failu re.

PORT LEDs Green Green indicates the port is active.

Red Red in di cat es a local al arm on the port. Yellow Yellow indicates a remote alarm on the port.

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Frame Relay Service Modules

CESM T3/E3 Illustrations

Chapter2 Module and Service Descriptions

• The MGX-CESM-T3/E3 front card is shown in Figure 2-26 on page 2-52.

• BNC-2T3 Back Card for the CESM-T3/E3 is show n in Figure 2-27 on page 2-53.

• BNC-2E3 Back Card for the CESM-T3/E3 is show n in Figure 2-28 on page 2-54.

Figure 2-26 CESM-T3/E3 Front Card

¥ ¥ ¥ ¥ ¥

ACT

STBY

FAIL

PORT 1

CESM

T3/E3

Front card

Sxxx3

2-52

Cisco MGX 8230 Edge Concentrator Installation and Configuration

Release 1.1.31, Part Number 78-11215-03 Rev. B0, May 2001

Chapter2 Module and Service Descriptions

Figure 2-27 BNC-2T3 Back Card for the CESM-T3/E3

BNC-2T3

SIGNAL

PORT 1

SIGNAL

Frame Relay Service Modules

PORT 2

12209

Note Only por t o n e i s availab l e o n th e C ES M T 3/ E3 ba ck card when u s ed w ith th e CESM-T3 /E3 fr on t

card.

Release 1.1.31, Part Number 78-11215-03 Rev. B0, May 2001

Cisco MGX 8230 Edge Concentrator Install ati on and Configuration

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Frame Relay Service Modules

Figure 2-28 BNC-2E3 Back Card for the CESM-T3/E3

Chapter2 Module and Service Descriptions

BNC-2T3

SIGNAL

PORT 1

SIGNAL

PORT 2

12209

Note Only por t o n e i s availab l e o n th e C ES M T 3/ E3 ba ck card when u s ed w ith th e CESM-T3 /E3 fr on t

card.

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Cisco MGX 8230 Edge Concentrator Installation and Configuration

Release 1.1.31, Part Number 78-11215-03 Rev. B0, May 2001

Cisco Systems MGX 8230 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

CONTENTS

Audience

Preface

Organization

Related D ocumentation

MGX 8230 Edg e Concentrator, Release 1 . 0 Related Documen tat i on

Cisco WAN Mana ger, Release 10, Related Documentation

Cisco WAN Switching Software, Release 9.3 Related Documentation

Conventions

Obtaining Documentation

World Wide Web

Documen t at i on CD-ROM

Orderi ng D ocum entation

Obtaining Technical Assistance

Documentation Feedback

Cisco.com

Technical A ssi stance Cent er

Contact i ng TAC by U si ng the Cisco TAC Web si t e

Contact ing TAC b y T elephone

Introducing the MGX 8230

MGX 8230 System Over view

The Applications of the MGX 8230

As a feeder

As a Stand-Alone Switch

Multiprotocol Label Switching (MPLS)

Consolidation of Cisco CPE Traffic

Multiservice Stand-alone Concentrator

Universal Edge Archit ecture

Standards-Based Conve r si on to ATM

MGX 8230 Enc l osure and Power

Slot Numbering and Placement

Single Height and Double Height Slots

MGX 82 30 Power Sy stem

Optional AC Power Supply

DC-Powe red MGX 8230

Cooling System

MGX 8230 Arch i tecture

Cell Bus

MGX 8230 Manag eme nt

Summary of MGX 8230 Cards and Modules

Introduction to Core Card Sets and Service Modules

Processor Switching Module (PXM1)

User Int er f ace Back Ca r ds

Service Resource Modul e ( SRM)

Frame Relay Service Modules (FRSM)

ATM UNI Service Modules (AUSM)

Circui t Emulatio n Service Modules ( CESM)

Voice Service Modules (VISM)

Route Pr ocessor Module (RPM)

Redundancy f or Service Modul es

1:1 Redundancy

Hot Standby

1:N Redundancy

Module and Service Descriptions

Processor Switchi ng Module

PXM1 Features

PXM1 Illustration and LED Description

PXM1 User Interface Back Cards

PXM1-UI (standard)

PXM-UI-S3 (optional)

Making Ext erna l Cl ock Connecti ons

Stratum 4 clocking

Stratum 3 clocking

PXM1 Back Cards

PXM1 User Interface Back Cards

SMFLR-1-622 Back Card

SMFIR-1-622 Back Card

SMF-155 Back Card

BNC-2T3 Back Ca r d

BNC-2E3 Back Ca r d

Service R esource Module

Bit Error Rate Testing

1:N Service Module Redundancy

Bulk Distribution Mode

Module Requirements with B ulk D i stribu tion and Redundancy

Installation Requirements for the MGX-SRM-3T3/C