Cisco 10000 Series Configuration Manual

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Cisco 10000 Series Router Line Card Configuration Guide

November, 2009

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Text Part Number: OL-8834-04

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About This Guide xvii

PART

1 ATM Line Cards

Guide Revision History xvii

Audience xix

Document Organization xix

Document Conventions xix

About This Guide

This guide describes how to configure Cisco 10000 series router line cards. For information about features that are supported on the Cisco autoprovisioning, automatic protection switching (APS), or quality of service (QoS), see the following configuration guides:

• Cisco 10000 Series Router Software Configuration Guide at the following URL:

http://www.cisco.com/en/US/docs/routers/10000/10008/configuration/guides/broadband/bba.html

• Cisco 10000 Series Router Quality of Service Configuration Guide at the following URL:

http://www.cisco.com/en/US/docs/routers/10000/10008/configuration/guides/qos/qoscf.html

10000 series router using the line cards, such as ATM PVC

This document describes the following topics:

• Guide Revision History, page xvii

• Audience, page xix

• Document Organization, page xix

• Document Conventions, page xix

• Related Documentation, page xx

• Obtaining Documentation and Submitting a Service Request, page xxi

Guide Revision History

Cisco IOS Release Part Number Publication Date

Release 12.2(31)SB2 OL-8834-04 November, 2006

Description

Added Performance Routing Engine 3 (PRE3) support information for the 1-Port Gigabit Ethernet, 1-Port Gigabit Ethernet Half-Height, 1-Port OC-12, and 1-Port Channelized OC-12/STM-4 line cards.

Added VC limitations per priority level per port for the 1-port OC-12, 4-port OC-3, and 8-port E3/DS3 ATM line cards.

Cisco IOS Release Part Number Publication Date

Release 12.2(28)SB2 OL-8834-03 July, 2006

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xvii

Description

Added the “Management Port” section on page 9-2 of Chapter 9, “8-Port Fast Ethernet Half-Height Line

Card Configuration” to indicate that the Fast Ethernet interface 0/0/0 is only used for management

purposes. Subinterfaces cannot be configured on this interface.

Changed the format of the Guide Revision History.

Cisco IOS Release Part Number Publication Date

Release 12.2(28)SB OL-8834-02 March, 2006

Description

Added Chapter 4, “4-Port Channelized T3 Half-Height Line Card Configuration”.

Added the 4-Port Channelized T3 Half-Height line card to the list of supported line cards in Chapter 17,

“Provisioning a Subrate E3 or T3 Interface”.

Added the “Controlling the S1 SONET Overhead Byte” section to the configuration chapters for the: 4-Port OC-3/STM-1 ATM line card, 1-Port OC-12 ATM line card, 6-Port OC-3/STM-1 Packet over SONET line card, and 1-Port OC-12 Packet over SONET line card.

Removed a chapter on configuring MLP connections. Refer to the MLP information in the Cisco 10000

Series Router Software Configuration Guide and the Cisco 10000 Series Quality of Service Configuration Guide.

About This Guide

Cisco IOS Release Part Number Publication Date

Release 12.3(7)XI7 OL-8834-01 December, 2005

Description

Retired OL-0716-10 and created this guide with the same organization as the Cisco 10000 Series Router Line Card Hardware Installation Guide, using a book part for each type of line card, such as ATM.

Because more up-to-date and complete information is included in the Cisco 10000 Series Router

Software Configuration Guide and the Cisco 10000 Series Quality of Service Configuration Guide, the

Qos and APS chapters were not ported to the new guide.

Removed several sections that have been moved to more appropriate locations in other guides:

• Configuring the router at startup (moved to the Cisco 10008 Quick Start Guide and the Cisco 10008

Router Hardware Installation Guide)

• Managing file systems (moved to the Cisco 10008 Quick Start Guide and the Cisco 10008 Router

Hardware Installation Guide)

• Managing PRE redundancy (moved to the Cisco 10000 Series Router Performance Routing Engine

Installation)

• Upgrading software (moved to the Cisco 10000 Series Router Performance Routing Engine

Installation)

• Managing system boot parameters (moved to the Cisco 10008 Router Hardware Installation Guide)

Incorporated information on provisioning a subrate E3 or T3 interface, formerly documented in a feature guide, as

Chapter 17, “Provisioning a Subrate E3 or T3 Interface” in this guide.

xviii

Added the minimum IOS releases that are supported by each line card.

Revised information for preprovisioning a line card.

Cisco 10000 Series Router Line Card Configuration Guide

OL-8834-04

About This Guide

Audience

The Cisco 10000 Series Router Line Card Configuration Guide is designed for the person who will configure and maintain the line cards on a Cisco 10000 series router. To benefit from this guide, this person must be experienced using Cisco IOS.

Document Organization

The Cisco 10000 Series Router Line Card Configuration Guide is organized as follows:

Chapter Title Description

Chapter 1 -15 Line card configuration Each chapter provides configuration information for a specific Cisco

10000 series router line card, including minimum software release information, hardware and software compatibility information, and the commands you use to configure the line card.

Chapter 16 Preparing for Line Card

Installation and Configuration

Chapter 17 Provisioning a Subrate E3 or

T3 Interface

Chapter 18 Configuration Examples Provides several large configuration examples.

Describes the treatment of a new line card, preprovisioning a line card, and resetting a line card.

Describes provisioning a subrate E3 or T3 interface.

Document Conventions

This document uses the following conventions:

Convention Description

^ or Ctrl The ^ and Ctrl symbols represent the Control key. For example, the key

string A string is a nonquoted set of characters shown in italics. For example, when

Command syntax descriptions use the following conventions:

Convention Description

bold Bold text indicates commands and keywords that you enter literally as shown.

italics Italic text indicates arguments for which you supply values.

[x] Square brackets enclose an optional element (keyword or argument).

| A vertical line indicates a choice within an optional or required set of keywords

combination ^D or Ctrl-D means hold down the Control key while you press the D key. Keys are indicated in capital letters but are not case sensitive.

setting an SNMP community string to public, do not use quotation marks around the string or the string will include the quotation marks.

or arguments.

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About This Guide

Convention Description

[x | y] Square brackets enclosing keywords or arguments separated by a vertical line

indicate an optional choice

{x | y} Braces enclosing keywords or arguments separated by a vertical line indicate a

required choice.

Nested sets of square brackets or braces indicate optional or required choices within optional or required elements. For example:

Convention Description

[x {y | z}] Braces and a vertical line within square brackets indicate a required choice within

an optional element.

Examples use the following conventions:

Convention Description

screen

bold screen

< >

! An exclamation point at the beginning of a line indicates a comment line.

[ ]

The following conventions are used to attract the attention of the reader:

Caution Means reader be careful. In this situation, you might do something that could result in equipment damage

or loss of data.

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

this manual.

Examples of information displayed on the screen are set in Courier font.

Examples of text that you must enter are set in Courier bold font.

Angle brackets enclose text that is not printed to the screen, such as passwords.

(Exclamation points are also displayed by the Cisco IOS software for certain processes.)

Square brackets enclose default responses to system prompts.

Obtaining Documentation and Submitting a Service Request

For information on obtaining documentation, submitting a service request, and gathering additional information, see the monthly What’s revised Cisco

http://www.cisco.com/en/US/docs/general/whatsnew/whatsnew.html

Subscribe to the What’s New in Cisco Product Documentation as a Really Simple Syndication (RSS) feed and set content to be delivered directly to your desktop using a reader application. The RSS feeds are a free service and Cisco currently supports RSS

technical documentation, at:

New in Cisco Product Documentation, which also lists all new and

Ve r si o n 2.0.

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xxi

About This Guide

xxii

Cisco 10000 Series Router Line Card Configuration Guide

OL-8834-04

ART

ATM Line Cards

CHAP TER

4-Port OC-3/STM-1 ATM Line Card Configuration

This chapter describes the procedures for configuring the Cisco 10000 series 4-Port OC-3/STM-1c ATM line card, hereafter known as the 4-Port OC-3/STM-1 ATM line card.

The 4-Port OC-3/STM-1 ATM line card is a NEBS-compliant device that performs Layer 2 Asynchronous Transfer Mode (ATM) functions. This line card receives and transmits ATM cells on each network physical interface connected to a line card port, and simultaneously transmits and receives packets from the Cisco 10000 series router backplane.

This chapter contains the following sections:

• Software Support, page 1-1

• Default Values, page 1-2

• Line Card VC Limitations, page 1-2

• Interface Syntax, page 1-3

• Interface Configuration Examples, page 1-4

• ATM Commands, page 1-6

Software Support

Table 1-1 shows the minimum Cisco IOS release on each release train that supports the 4-Port

OC-3/STM-1 ATM line card.

Ta b l e 1-1 4-Port OC-3/STM-1 ATM Line Card Software Support

Required PRE Minimum Cisco IOS Releases

PRE1 Cisco IOS Release 12.0(21)SX and later releases of Cisco IOS Release 12.0SX

PRE2 Cisco IOS Release 12.3(7)XI and later releases of Cisco IOS 12.3XI

OL-8834-04

Cisco IOS Release 12.0(20)ST and later releases of Cisco IOS Release 12.0ST Cisco IOS Release 12.0(22)S and later releases of Cisco IOS Release 12.0S Cisco IOS Release 12.2(8)BZ and later releases of Cisco IOS Release 12.2BZ

Cisco IOS Release 12.2(15)BX and later releases of Cisco IOS Release 12.2BX Cisco IOS Release 12.2(28)SB and later releases of Cisco IOS 12.2SB

Cisco 10000 Series Router Line Card Configuaration Guide

1-1

Default Values

Checking Hardware and Software Compatibility

The PRE installed in the Cisco 10000 series router chassis must support the Cisco IOS software running on the router. Use the show version command to check the PRE version installed.

To see if a feature is supported by a Cisco IOS release, to locate the software document for that feature, or to check the minimum software requirements of Cisco IOS software with the hardware installed on your router, Cisco maintains the Software Advisor tool on Cisco.com at

http://www.cisco.com/cgi-bin/Support/CompNav/Index.pl

This tool does not verify whether line cards within a system are compatible, but does provide the minimum Cisco IOS requirements for individual hardware line cards, modules, or options.

You must be a registered user on Cisco.com to access this tool.

Default Values

Table 1-2 lists default configuration values for the 4-Port OC-3/STM-1 ATM line card. This table also

includes the command used to modify a default value, and provides information about values to set on the remote end of the connection.

Chapter 1 4-Port OC-3/STM-1 ATM Line Card Configuration

Ta b l e 1-2 4-Port OC-3/STM-1 ATM line card Defaults

Remote Side

Command Name Default Setting Command Syntax

mtu (maximum transmission unit)*

atm clock internal no atm clock internal [no] atm clock internal opposite

loopback loopback none [no] loopback [line | diagnostic {parallel |

4470 bytes [no] mtu bytes same

path | serial}]

Setting

—

Line Card VC Limitations

The Cisco 10000 series router supports four ATM service categories for virtual circuits (VCs):

• Constant Bit Rate (CBR)

• Variable Bit Rate-non-real-time (VBR-nrt)

• Unspecified Bit Rate (UBR) with a peak cell rate (PCR), referred to as shaped UBR

• UBR without a PCR, referred to as unshaped UBR

The segmentation and reassembly (SAR) mechanism configures priority and additional traffic management parameters for the various ATM service categories. SAR sets for the service categories.

Table 1-3 lists the priority levels the

1-2

Ta b l e 1-3 ATM Service Categories

Parameter CBR VBR-rt VBR-nrt Shaped UBR Unshaped UBR

Priority 0 1 2 3 None

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Chapter 1 4-Port OC-3/STM-1 ATM Line Card Configuration

The number of SAR priority levels and the service categories supported at each priority level vary from line card to line card. For example, the 4-port OC-3 line card supports the two levels of priority and the service categories listed in

The ATM line cards support a maximum number of VCs per priority. That VC limit depends on the VC limit of the SAR (SAR limit) and the number of priority levels configured. determine the VC limit per priority level per port for the 4-port OC-3 line card.

Ta b l e 1-4 Maximum Number of VCs per Priority

ATM Line Card SAR Priority Levels VC Rate Maximum Number of VCs per Priority

4-Port OC-3 0 = CBR, VBR-nrt VCs

1 = UBR VCs

Configuring more channels or VCs than there are available priority locations can cause random channels or VCs to get stuck in the SAR. This occurs when an active channel tries to reschedule itself, but no priority locations are available. Therefore, the channel cannot find a place to reschedule itself, which results in a lost event for the channel, and the channel becomes stuck in the SAR.

On the PRE2, when a VC becomes stuck in the SAR, the PRE2 scheduler stops forwarding traffic on only the VC that is stuck in the SAR; the other VCs still carry traffic. On the PRE3, the PRE3 scheduler stops forwarding traffic on all the VCs configured on that ATM line card.

Table 1-4.

Half line rate and below

Interface Syntax

Table 1-4 describes how to

SAR limit / number of PHYs / number of priority levels

2 priority system:

65,536 / 4 / 2 = 8192 VCs per priority level per port

Interface Syntax

To specify an interface number in a configuration command, use the syntax in Tab le 1-5 to identify main interfaces and subinterfaces on the 4-Port OC-3/STM-1 ATM line card in Cisco Series 10000 routers.

Ta b l e 1-5 4-Port OC-3 ATM Interface Syntax

Type of Interface Router Slot Subslot Port Subinterface

Main interface 10008 1 through 8/ 0/ 0 to 3 —

Subinterface 10008 1 through 8/ 0/ 0.n to 3.n n = 1 to 4294967295

Main interface 10005 1 through 5/ 0/ 0 to 3 —

Subinterface 10005 1 through 5/ 0/ 0.n to 3.n n = 1 to 4294967295

Examples:

• Modify a PVC associated with the main interface.

Router(config)# interface atm 2/0/0 Router(config-if)# pvc 0/200 Router(config-if-atm-vc)#

• Modify a permanent virtual circuit (PVC) associated with a subinterface.

Router(config)# interface atm 7/0/0.1 Router(config-subif)# pvc 0/101 Router(config-if-atm-vc)#

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1-3

Interface Configuration Examples

This section provides sample procedures for creating ATM subinterfaces, permanent virtual circuits (PVCs), and virtual circuit (VC) classes, and procedures for enabling Integrated Local Management Interface (ILMI).

Creating a Subinterface

Use the following procedure to create a subinterface.

Step 1 Separate the ATM interface into subinterfaces using the interface command. You can create either a

point-to-point or multipoint subinterface.

In the following example, multipoint subinterface number 1 is created on port 0 of the 4-Port OC-3/STM-1 ATM line card in slot 2.

Router(config)# interface atm 2/0/0.1 multipoint Router(config-subif)#

Chapter 1 4-Port OC-3/STM-1 ATM Line Card Configuration

Step 2 Assign an IP address and subnet mask to the created interface using the ip address configuration

Creating a PVC

Step 1 Enter interface or subinterface configuration mode.

subcommand, as shown in the following example:

Router(config-subif)# ip address 172.27.48.209 255.255.0.0 Router(config-subif)#

You have created ATM subinterface 2/0/0.1. To configure or modify this interface, use the following command:

Router(config)# interface atm 2/0/0.1 Router(config-subif)#

You can create multiple PVCs on a 4-Port OC-3/STM-1 ATM line card interface. You can create PVCs on the main interface or on a subinterface.

To create a PVC

Use the pvc command to specify a virtual path identifier (VPI) value between 0 and 255 and a virtual channel identifier (VCI) value between 0 and 65535. The following example shows how to create a PVC with a VPI value of 0 and VCI value of 100 on a subinterface.

Router(config-subif)# pvc 0/100 Router(config-if-atm-vc)#

1-4

Step 2 Use the protocol ip configuration subcommand to assign a peer IP address to the PVC, as shown in the

following example:

Router(config-if-atm-vc)# protocol ip 172.16.32.49 Router(config-if-atm-vc)#

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Chapter 1 4-Port OC-3/STM-1 ATM Line Card Configuration

Creating a VC Class

This procedure demonstrates how to create an ATM VC class. An ATM VC class is a PVC boilerplate—a PVC description that you can apply to one or more PVCs.

To create a PVC boilerplate:

Step 1 Use the global configuration mode vc-class atm name command, where name is the name value you

assign. The following example shows how to create the ATM VC class named boston.

Router(config)# vc-class atm boston Router(config-vc-class)#

Step 2 Enter commands to describe the ATM VC class you named boston. This example shows how to specify

that the boston class uses AAL5+MUX encapsulation with a variable bit-rate non real-time (VBR-NRT) PVC.

Router(config-vc-class)# encaps aal5mux ip Router(config-vc-class)# vbr-nrt 30000 20000 128 Router(config-vc-class)# exit Router(config)#

Interface Configuration Examples

You have created a VC class named boston. The next procedure describes how to apply this class to a PVC or subinterface.

Applying a VC Class

You can apply a VC class (created in the previous procedure) to a PVC or an interface.

• In the following example, the class named boston is applied to subinterface 5/0/0.1.

Router(config)# interface atm 5/0/0.1 Router(config-subif)# class-int boston Router(config-subif)#

• In the following example, the class named boston is applied to a new PVC (0/102) in subinterface

5/0/0.2.

Router(config)# interface atm 5/0/0.2 Router(config-subif)# pvc 0/102 Router(config-if-atm-vc)# class-vc boston Router(config-if-atm-vc)#

You have completed the steps for assigning a VC class to a PVC.

Enabling ILMI PVC Discovery

OL-8834-04

You can enable ILMI to automatically discover PVCs on neighboring switches and duplicate those PVC entries on the 4-Port OC-3/STM-1 ATM line card.

Cisco 10000 Series Router Line Card Configuaration Guide

1-5

ATM Commands

To enable ILMI:

Step 1 Create PVC 0/16 on the main interface as shown in the following example:

Router(config)# interface atm 5/0/0 Router(config-if)# pvc 0/16 ilmi Router(config-if-atm-vc)# exit Router(config-if)#

Step 2 In the following example, ILMI PVC discovery is enabled for the selected port on the 4-Port

OC-3/STM-1 ATM line card (step 1 references port 0).

Router(config-if)# atm ilmi-pvc-discovery

You have completed the steps required for running ILMI PVC discovery. You can use the show atm pvc command to display the PVCs on the Cisco 10000 series router.

Completing a Configuration

This section offers general information on creating and completing a configuration of an 4-Port OC-3/STM-1 ATM line card.

Chapter 1 4-Port OC-3/STM-1 ATM Line Card Configuration

To configure and interface:

Step 1 Enter interface configuration mode and then specify necessary parameters, such as the IP address and

subnet mask.

Step 2 After you enter all of the configuration subcommands to complete the configuration, enter Ctrl-Z (hold

down the Control key while you press Z) to exit configuration mode.

Step 3 Write the new configuration to memory:

Router# copy running-config startup-config

The system displays an OK message when the configuration is stored. After you have completed your configuration, you can check it by using show

ATM Commands

Each 4-Port OC-3/STM-1 ATM line card permits you to specify up to four OC-3 interfaces. You can put all the PVCs on the main interfaces, or you can create associated subinterfaces. This section describes the principal commands for customizing interfaces and PVCs:

• Global Configuration Command, page 1-7

• Interface and Subinterface Commands, page 1-7

• ATM PVC Commands, page 1-15

• Useful show Commands, page 1-19

commands.

1-6

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Chapter 1 4-Port OC-3/STM-1 ATM Line Card Configuration

Global Configuration Command

A PVC boilerplate is a PVC description that you can apply to one or more PVCs or interfaces.

To create a PVC boilerplate, use the global configuration mode vc-class atm command:

vc-class atm class_name

Where class_name is any value that describes the VC class.

After you enter the vc-class atm command, you are placed in VC class configuration mode. In this mode, you describe the action you want the class to take by entering commands and their arguments. These commands and arguments are described in the

In the following example, an ATM VC class named cambridge is created and defined. This example shows how to specify that the class uses AAL5+MUX

Router(config)# vc-class atm cambridge Router(config-vc-class)# encaps aal5mux ip Router(config-vc-class)# vbr-nrt 30000 20000 128 Router(config-vc-class)# exit Router(config)#

For information on applying a VC class name, see the “Attaching an ATM VC Class to an Interface”

section on page 1-9 and the “Attaching an ATM VC Class to a PVC” section on page 1-17.

ATM Commands

“ATM PVC Commands” section on page 1-15.

encapsulation and a VBR-NRT PVC.

Interface and Subinterface Commands

This section describes principal commands for configuring ATM interfaces and subinterfaces. This section describes the following global configuration commands:

• Creating and Entering Subinterfaces, page 1-8

• Attaching an ATM VC Class to an Interface, page 1-9

• Creating ATM PVPs, page 1-10

• Creating a PVC, page 1-10

• Enabling ATM ILMI, page 1-11

• Activating ATM ILMI PVC Discovery, page 1-11

• Specifying the ATM ILMI Keepalive Rate, page 1-12

• Configuring the ATM Clock, page 1-12

• Specifying the ATM Flag, page 1-12

• Controlling ATM Alarm Reporting, page 1-13

• Specifying the ATM Alarm Thresholds, page 1-14

• Controlling the S1 SONET Overhead Byte, page 1-14

• Running Loopbacks, page 1-15

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1-7

ATM Commands

Creating and Entering Subinterfaces

Use the interface command to segment an OC-3 ATM main interface into multiple subinterfaces to simplify line card management, to create interfaces with different MTU sizes, and to create connections to different networks.

interface atm slot/subslot/port.subinterface type no interface atm slot/subslot/port.subinterface type

Where:

• slot is 1 to 5 for a Cisco 10005 router

• slot is 1 to 8 for a Cisco 10008 router

• subslot is always 0 for a full-height line card

• port is 0 to 3

• subinterface is a value from 1 to 4294967295

• type is always point-to-point or multipoint

To enter the subinterface at a later time, you do not need to specify the type.

To remove a subinterface and its PVCs, use the no interface command. To change a subinterface type, you must first remove the subinterface.

Chapter 1 4-Port OC-3/STM-1 ATM Line Card Configuration

Examples:

• Create subinterface number 1 at port 3 for 4-Port OC-3/STM-1 ATM line card in slot 1.

Router(config)# interface atm 1/0/3.1 point-to-point Router(config-subif)#

• Enter an existing subinterface.

Router(config)# interface atm 1/0/3.1 Router(config-subif)#

• Use a multipoint subinterface.

If you want multiple PVCs to go to the same network, you must create a multipoint subinterface. For example:

Router(config)# interface atm 4/0/2.2 multipoint Router(config-subif)#

After you create the subinterface, you can create PVCs that are attached to the same network.

Figure 1-1 shows a multipoint subinterface on a fully meshed network. Fully meshed indicates that

any workstation can communicate with any other workstation.

1-8

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Chapter 1 4-Port OC-3/STM-1 ATM Line Card Configuration

Router A

Cisco 10000 ESR

46927

Router B

Router C

ATM

131.108.168.0

131.108.168.1

131.108.171.0

131.108.168.2

int atm 2/0/0.1

int atm 5/0/0.1

int atm 4/0/0.2

131.108.168.3

131.108.169.0

131.108.169.2

131.108.170.3

131.108.170.0

Figure 1-1 Multipoint ATM Configuration

The following example commands for routers A, B, and C show how to configure the ATM interfaces for each router shown in to configure the multipoint connections in that network:

Router A

Router(config) # interface atm 4/0/0.2 multi Router(config-subif) # ip address 131.108.168.1 255.255.255.0 Router(config-subif) # pvc 0/35 Router(config-if-atm-vc) # protocol ip 131.108.168.2 broadcast Router(config-if-atm-vc)# en Router(config-subif) # pvc 0/36 Router(config-if-atm-vc) # protocol ip 131.108.168.3 broadcast Router(config-if-atm-vc)# en Router(config-subif) # en

ATM Commands

Figure 1-1. These examples show the configuration commands you must enter

Router B

Router(config) # interface atm 2/0/0.1 multi Router(config-subif) # ip address 131.108.168.2 255.255.255.0 Router(config-subif) # pvc 0/35 Router(config-if-atm-vc) # protocol ip 131.108.168.1 broadcast Router(config-if-atm-vc)# en Router(config-subif) # pvc 0/37 Router(config-if-atm-vc) # protocol ip 131.108.168.3 broadcast Router(config-if-atm-vc)# en Router(config-subif) # en

Router C

Router(config) # interface atm 5/0/0.1 multi Router(config-subif) # ip address 131.108.168.3 255.255.255.0 Router(config-subif) # pvc 0/36 Router(config-if-atm-vc) # protocol ip 131.108.168.1 broadcast Router(config-if-atm-vc)# en Router(config-subif) # pvc 0/37 Router(config-if-atm-vc) # protocol ip 131.108.168.2 broadcast Router(config-if-atm-vc)# ex Router #

Attaching an ATM VC Class to an Interface

Use the class-int command to attach an ATM VC class to an interface. If you customize a PVC, its customization takes precedence over the interface class.

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class-int class_name

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ATM Commands

Where class_name is the name of the class created using the global configuration class-vc atm command.

In the following example, a VC class named cambridge is created and attached to subinterface 3/0/0.1.

Router(config)# vc-class atm cambridge Router(config-vc-class)# encaps aal5mux ip Router(config-vc-class)# vbr-nrt 30000 20000 128 Router(config-vc-class)# exit Router(config)# interface atm 3/0/0.1 Router(config-subif)# class-int cambridge

Creating ATM PVPs

To create a permanent virtual path (PVP) used to multiplex one or more VBR-NRT VCs, use the atm pvp interface configuration command.

atm pvp vpi peak-rate [no-f4-oam] no atm pvp vpi

Where:

• vpi is the ATM network virtual path identifier (VPI) of the VC used to multiplex the permanent

• peak-rate is the maximum rate in Kbps at which the PVP can transmit data. You can enter values from

• no-f4-oam (optional) restricts the PVP from passing operations/administration/maintenance (OAM)

Chapter 1 4-Port OC-3/STM-1 ATM Line Card Configuration

virtual path. The range is 0 to 255. You must use a VPI value that is not already in use (by a VC).

84 Kbps to 74,880 Kbps, and you can also enter 149,760 Kbps. The PVP peak rate value supersedes all rate values set for VBR-NRT PVCs associated with the PVP.

packets. When you create a PVP, the system creates (by default) PVCs with VCI values of 3 and 4 for each PVP, which pass OAM packets.

Creating a PVC

Note You can only create one PVC on a point-to-point interface. Multiple PVCs can be created

To verify the configuration of a PVP, use the show atm vp exec command.

The following example shows how to create a PVP with a peak rate of 50,000 Kbps. The subsequent created VCs are multiplexed onto this virtual path.

Router(config)# interface atm 7/0/0 Router(config-if)# atm pvp 25 50000 Router(config-if)# pvc 25/100 Router(config-if-atm-vc)# vbr-nrt 10000 5000 16 Router(config-if-atm-vc)# exit Router(config-if)# pvc 25/101 Router(config-if-atm-vc)# vbr-nrt 10000 5000 16 Router(config-if-atm-vc)# exit Router(config-if)# pvc 25/102 Router(config-if-atm-vc)# vbr-nrt 10000 5000 16 Router(config-if-atm-vc)# exit Router(config)#

This section describes how to create a permanent virtual circuit.

on a multipoint interface.

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Chapter 1 4-Port OC-3/STM-1 ATM Line Card Configuration

You can establish an unspecified bit rate (UBR) PVC by entering the pvc command:

pvc [word] [vpi_value/]{vci_value} [ilmi]

Where:

• vpi_value is in the range from 0 to 255. If you do not specify a VPI value, the system assigns the

value 0.

• vci_value is in the range 1 to 65535. The VCI value should be 33 or greater because all

lower-numbered PVCs are already assigned.

• word is an optional name referring to this connection.

• ilmi parameter maps the ILMI channel to the PVC for this interface. You can only use this argument

for PVCs created on the main interface. We recommend that you use this argument with PVC 0/16. For more information about activating ILMI, see the

section on page 1-11.

By default, the pvc command creates a UBR PVC. To specify a VBR-NRT PVC, see the “Configuring

VBR-NRT” section on page 1-17.

Examples:

• Create PVC 0/105 on the main interface.

Router(config)# interface atm 5/0/0 Router(config-if)# pvc 105 Router(config-if-atm-vc)

ATM Commands

“Activating ATM ILMI PVC Discovery”

• Create PVC 2/102 on a subinterface.

Router(config)# interface atm 5/0/0.1 Router(config-subif)# pvc 2/102 Router(config-if-atm-vc)#

Enabling ATM ILMI

Use the atm ilmi-enable interface configuration command to enable ILMI on a port.

atm ilmi-enable no atm ilmi-enable

The default is ILMI is enabled, but you should disable the ILMI if the peer does not support ILMI. For peers to be able to exchange ILMI information, you must create PVC 0/16 using the ilmi argument.

The following example shows how to disable ILMI:

Router(config)# interface atm 5/0/0 Router(config-if)# no atm ilmi-enable

Activating ATM ILMI PVC Discovery

This command causes ILMI-compliant devices to propagate PVCs. Use the atm ilmi-pvc-discovery interface configuration command to activate ATM PVC discovery.

atm ilmi-pvc-discovery [subinterface] no atm ilmi-pvc-discovery [subinterface]

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ATM Commands

Where:

• subinterface instructs the software to associate all PVCs with existing subinterface numbers equal

to their VPI numbers. For example: PVC 2/102 would be listed under subinterface 7/0/0.2, PVC 12/156 would be listed under 7/0/0.12, and so on.

Note The subinterface argument associates PVCs only with subinterfaces that have already been

created. If there is no subinterface for a VPI value, the system associates the PVC interface.

The following example shows how to enable PVC discovery on the ATM main interface 7/0/0, for port 0, on a 4-Port OC-3/STM-1 ATM line card that has ILMI enabled.

Router(config)# interface atm 7/0/0 Router(config-if)# pvc 0/16 ilmi Router(config-if-atm-vc)# exit Router(config-if)# atm ilmi-pvc-discovery

Specifying the ATM ILMI Keepalive Rate

Chapter 1 4-Port OC-3/STM-1 ATM Line Card Configuration

with the main

Use the atm ilmi-keepalive command to specify the ILMI keepalive rate.

atm ilmi-keepalive [seconds [retry counts]]

Where:

• seconds is a value from 1 to 65535

• retry counts is a value from 2 to 5

The default value for seconds is 5000 and for retry counts is 4.

The following example shows how to enable ILMI keepalives for the ATM interface 5/0/0:

Router(config)# interface atm 5/0/0 Router(config-if)# atm ilmi-keepalive 10000 retry 3

Configuring the ATM Clock

Use the atm clock internal command to configure the clock source as internal.

atm clock internal no atm clock internal

The default clock setting is no atm clock internal, which means that clocking is derived from the line.

In the following example, clocking is set from the router.

Router(config)# interface atm 5/0/0 Router(config-if)# atm clock internal

Specifying the ATM Flag

This command is typically used to meet a standards requirement or to ensure interoperability with another vendor's equipment. Use the atm flag s1s0 command to specify the ATM flag value for the s1and s0 bits.

atm flag s1s0 value

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Chapter 1 4-Port OC-3/STM-1 ATM Line Card Configuration

Where:

• s1s0 is part of the payload pointer byte

• value is from 0 to 3

The default s1s0 value is 0.

The following example shows how to assign a value of 2 to the ATM flag:

Router(config)# interface atm 5/0/0 Router(config-if)# atm flag s1s0 2

Controlling ATM Alarm Reporting

To control selected SONET alarms so that they are logged to the console for an ATM interface, use the atm report interface configuration command.

atm report {b1-tca | b2-tca | b3-tca | lais | lcd | lrdi | pais | plop | prdi | rdool | sd-ber | sf-ber | slof | slos}

no atm report {b1-tca | b2-tca | b3-tca | lais | lcd | lrdi | pais | plop | prdi | rdool | sd-ber | sf-ber | slof | slos}

ATM Commands

Where:

• b1-tca—B1 bit error rate (BER) threshold crossing alarm

• b2-tca—B2 BER threshold crossing alarm

• b3-tca—B3 BER threshold crossing alarm

• lais—Line Alarm Indication Signal

• lcd—Loss of cell delineation

• lrdi—Line Remote Defect Indication

• pais—Path Alarm Indication Signal

• plop—Path Loss of Pointer

• prdi—Path Remote Defect Indication

• rdool—Receive Data Out Of Lock

• sd-ber—Line bit interleave parity error (LBIP) BER in excess of signal degrade (SD) threshold

• sf-ber—LBIP BER in excess of signal fail (SF) threshold

• slof—Section Loss of Frame

• slos—Section Loss of Signal

To disable logging of select SONET alarms, use the no form of this command.

Reporting an alarm means that the alarm can be logged to the console. Not all alarms are logged. SONET alarm hierarchy rules dictate that only the most severe alarm of an alarm group is reported. Whether an alarm is reported or not, you can view the current state of a defect by checking the Active Defects line from the show controllers atm command output.

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The following example shows how to enable reporting of SD-BER and LAIS alarms on the interface:

Router(config)# interface atm 3/0/0 Router(config-if)# atm report sd-ber Router(config-if)# atm report lais Router(config-if)# end Router#

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ATM Commands

Specifying the ATM Alarm Thresholds

Specify the bit error rate (BER) threshold by using the atm threshold command:

atm threshold {b1-tca | b2-tca | b3-tca | sd-ber | sf-ber} value

Where:

• b1-tca—B1 BER threshold crossing alarm

• b2-tca—B2 BER threshold crossing alarm

• b3-tca—B3 BER threshold crossing alarm

• sd-ber—Set Signal Degrade BER threshold

• sf-ber—Set Signal Fail BER threshold

• value is an exponential value from 10

The default for all thresholds, except sf-ber, is 10-6. The default for sf-ber is 10-3.

The following example shows how to specify the B1 BER threshold crossing alarm value of 4:

Router(config)# interface atm 5/0/0 Router(config-if)# atm threshold b1-tca 4

–3

to 10

Chapter 1 4-Port OC-3/STM-1 ATM Line Card Configuration

–9

representing the BER at which an alarm occurs.

Controlling the S1 SONET Overhead Byte

On Cisco 10000 series routers, ATM line cards run over SONET. In most situations, the default value for the S1 SONET overhead byte (0x0) does not need to be changed. Refer to the SONET standards for information about the possible values for the S1 SONET overhead byte and the definition of each value.

Controlling a Transmitted S1 Overhead Byte

In Cisco IOS Release 12.2(28)SB, use the pos flag s1-byte tx command in interface configuration mode to control the transmission of the S1 SONET overhead byte.

pos flag s1-byte tx value

Where:

• value is in the range of 0x0 to 0xF

• 0x0 is the default value

In the following example the S1 SONET overhead byte is set to 0xF:

pos flag s1-byte tx 0xF

Reacting to a Received S1 Overhead Byte

In Cisco IOS Release 12.2(28)SB, use the pos flag s1-byte rx-communicate command to direct the router to switch the clock source to internal when it receives an S1 SONET overhead byte with a value of 0xF. When the S1 SONET overhead byte changes from 0xF to any other value, the clock source reverts back to the clock source specified in the user configuration.

The S1 overhead byte is ignored by the receiving router unless the pos flag s1-byte rx-communicate command is issued.

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pos flag s1-byte rx-communicate

no pos flag s1-byte rx-communicate

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Chapter 1 4-Port OC-3/STM-1 ATM Line Card Configuration

The following example directs the router to switch to internal clocking when it receives an S1 SONET overhead byte with a value of 0xF:

pos flag s1-byte rx-communicate

The default for the pos flag s1-byte rx-communicate command is disabled or off.

Running Loopbacks

Use the loopback command to run a loopback diagnostic tests.

loopback {line | diagnostic {parallel | path | serial}} no loopback {line | diagnostic {parallel | path | serial}}

Where:

• line is the line loopback

• diagnostic starts an internal diagnostic loopback

• parallel is the internal diagnostic parallel loopback

• path is the internal diagnostic path loopback

• serial is the internal diagnostic serial loopback

The following example shows hot to run the diagnostic serial loopback:

Router(config)# interface atm 5/0/0 Router(config-if)# loopback diagnostic serial

ATM Commands

ATM PVC Commands

After you create a PVC using the pvc command, you can customize the PVC or a VC class by using the commands described in this section.

• Specifying a Protocol, page 1-15

• Configuring a Broadcast, page 1-16

• Configuring Inverse ARP, page 1-17

• Attaching an ATM VC Class to a PVC, page 1-17

• Configuring VBR-NRT, page 1-17

• Specifying Encapsulation, page 1-18

• Enabling ILMI Management, page 1-18

• Configuring OAM Retry, page 1-19

• Enabling OAM Loopback Cell Generation and Management, page 1-19

Specifying a Protocol

Use the protocol ip command in interface-ATM-VC configuration mode or VC-class configuration mode to do one or both of the following:

• Configure a static map for an ATM PVC or VC class.

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ATM Commands

Note Use the inarp command to configure Inverse ARP frequency.

Chapter 1 4-Port OC-3/STM-1 ATM Line Card Configuration

• Enable Inverse ARP or Inverse ARP broadcasts on an ATM PVC by either configuring Inverse ARP

directly on the PVC or in a VC class (applies to IP

protocol ip {protocol-address | inarp} [[no] broadcast] no protocol ip {protocol-address | inarp} [[no] broadcast]

Where:

• protocol-address is the peer destination address that is being mapped to a PVC.

• inarp (valid only for IP protocols on PVCs) enables Inverse ARP on an ATM PVC. If you specify

a protocol-address instead of inarp, Inverse ARP is automatically disabled for that protocol.

• [no] broadcast (optional) indicates that this PVC sends out broadcast packets (for example, IGRP

updates). Pseudo broadcasting is supported. The broadcast keyword of the protocol ip command takes precedence if you previously configured the broadcast command on the ATM PVC.

For PVCs created under point-to-point subinterfaces, broadcast is enabled by default. For PVCs created under multipoint subinterfaces, use the broadcast argument to propagate IP routes.

Use the no form of this command to remove a static map or disable Inverse ARP.

protocols only).

The following example shows how to specify IP protocol on an ATM PVC:

Router(config)# interface atm 5/0/0 Router(config-if)# pvc 0/105 Router(config-if-atm-vc)# protocol ip 172.16.32.49

Configuring a Broadcast

Use the broadcast command to configure broadcast packet duplication and transmission for an ATM PVC or VC class.

The broadcast command is not used to enable ATM cell-level multicast, broadcast, replication, or to set up the broadcast of user level traffic. The broadcast command indicates which PVC (or PVCs) sends out broadcast traffic. This is typically limited to traffic associated with routing protocols and routing updates (for example, OSPF hello packets).

Note The broadcast argument within the protocol ip command takes precedence over the

broadcast command. See the

information.

Use the default form of this command to restore the default behavior described below.

broadcast no broadcast

The default is broadcast.

“Specifying a Protocol” section on page 1-15 for more

1-16

Use the no form of this command to disable transmission of broadcast packets.

For PVCs created under point-to-point subinterfaces, broadcast is enabled by default. For PVCs created under multipoint subinterfaces, you should use the broadcast command if you want to propagate IP routes (only the first PVC on a multipoint interface receives broadcast traffic).

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The following example shows how to use the broadcast command to restore the default behavior:

Router(config)# interface atm 5/0/0.4 Router(config-subif)# pvc 0/105 Router(config-if-atm-vc)# broadcast Router(config-if-atm-vc)#

Configuring Inverse ARP

Use the inarp command in interface-ATM-VC configuration mode or VC-class configuration mode to configure the Inverse ARP time period for an ATM PVC or VC class.

inarp minutes no inarp minutes

Where minutes is the inverse ARP frequency from 1 to 60 minutes.

The default frequency is 15 minutes.

Use the no form of this command to restore the default inverse ARP time period behavior.

ATM Commands

Note This command is supported only for AAL5+SNAP encapsulation (the default) when

Inverse ARP is enabled. Use the encapsulation command to configure AAL5+SNAP encapsulation and the protocol command to enable Inverse ARP.

The following example shows how to specify an inverse ARP frequency of 40 minutes on an ATM PVC:

Router(config)# interface atm 5/0/0 Router(config-if)# pvc 0/105 Router(config-if-atm-vc)# inarp 40

Attaching an ATM VC Class to a PVC

Use the class-vc command to attach an ATM VC class to a PVC.

class-vc name

Where:

• name is the name of the class created with the global configuration class-vc atm command.

The following example shows how to assign an ATM VC class named boston to an ATM PVC:

Router(config)# interface atm 5/0/0.4 Router(config-subif)# pvc 2/100 Router(config-if-atm-vc)# class-vc boston

Configuring VBR-NRT

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Use the vbr-nrt command to configure the variable bit rate non real-time (VBR-NRT) traffic management type and specify output peak cell rate, output sustainable cell rate, and output maximum burst cell size for an ATM PVC or VC

class.

You can use the vbr-nrtv command in PVC configuration mode or VC-class configuration mode.

vbr-nrt peak_cell_rate sustainable_cell_rate maximum_burst_size no vbr-nrt peak_cell_rate sustainable_cell_rate maximum_burst_size

Where:

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ATM Commands

• peak is the peak cell rate (PCR) from 38 Kbps to 149,760 Kbps. The PCR must be at least equal to

the sustainable cell rate

• sustainable is the sustainable cell rate (SCR) from 38 Kbps to the PCR

• maximum is a number from 1 to 65,535, which represents maximum burst size (MBS) in cells

The default class of service is unspecified bit rate (UBR) running at the maximum line rate of the physical interface.

Use the no form of this command to remove the VBR-NRT parameters and return the PVC to its default of unspecified bit rate (UBR).

The following example shows how to configure the VBR-NRT traffic parameters on an ATM PVC:

Router(config)# interface atm 5/0/0 Router(config-if)# pvc 0/105 Router(config-if-atm-vc)# vbr-nrt 50000 20000 200

Specifying Encapsulation

Use the encapsulation command in PVC configuration mode or VC-class configuration mode to specify the ATM adaptation layer (AAL) and encapsulation type for an ATM

encapsulation {aal5mux ip | aal5snap} no encapsulation {aal5mux ip | aal5snap}

Chapter 1 4-Port OC-3/STM-1 ATM Line Card Configuration

(SCR)

PVC or VC class.

Where:

• aal5mux ip is AAL5+MUX encapsulation

• aal5snap is AAL5+LLC/SNAP encapsulation (the default)

Use the no form of this command to return an encapsulation to the default SNAP.

The following example shows how to specify aal5mux ip encapsulation for an ATM PVC:

Router(config)# interface atm 5/0/0.4 Router(config-subif)# pvc 0/105 Router(config-if-atm-vc)# encaps aal5mux ip

Enabling ILMI Management

Use the ilmi manage command in PVC configuration mode or VC-class configuration mode to enable ILMI management on an ATM PVC. This command changes the convergence of higher-level protocols based on link-state changes.

ilmi manage no ilmi manage

Use the no form of this command to disable ILMI management.

The following example shows how to enable ILMI management on an ATM PVC:

Router(config)# interface atm 5/0/0 Router(config-if)# pvc 0/105 Router(config-if-atm-vc)# ilmi manage

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Configuring OAM Retry

Use the oam retry command in PVC configuration mode or VC-class configuration mode to configure OAM retry.

oam retry up_value [down_value frequency] no oam retry up_value [down_value frequency]

Where:

• up_value is a number from 1 to 600 that represents the OAM retry count before declaring that a VC

is up.

The default is 3 retries.

• down_value is a number from 1 to 600 that represents the OAM retry count before declaring a VC

is down.

The default is 5 retries.

• frequency is a number from 1 to 1000 that represents the OAM retry polling frequency, in seconds.

The default is 1 second.

Use the no form of this command to return OAM retry to its default values.

The following example shows how to configure OAM retry for an ATM PVC:

Router(config)# interface atm 5/0/0 Router(config-if)# pvc 0/105 Router(config-if-atm-vc)# oam retry 10 10 5

ATM Commands

Enabling OAM Loopback Cell Generation and Management

To enable end-to-end F5 OAM loopback cell generation and OAM management for an ATM PVC or VC class, use the oam-pvc command in PVC configuration mode or VC-class configuration mode.

oam-pvc [manage] [frequency] no oam-pvc [manage] [frequency]

Where:

• manage is an optional keyword that brings down the interface or subinterface if the PVC loopback

fails.

• frequency (optional) is the number of seconds between transmitting OAM loopback cells. Values

range from 0 to 600 seconds.

The default value is 10 seconds.

Use the no form of this command to disable generation of OAM loopback cells and OAM management.

The following example shows how to enable OAM loopback cell generation for an ATM PVC:

Router(config)# interface atm 5/0/0 Router(config-if)# pvc 0/105 Router(config-if-atm-vc)# oam-pvc 300

Useful show Commands

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show atm vc

Use the show atm vc command to display information about the VCs on the interface.

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ATM Commands

Chapter 1 4-Port OC-3/STM-1 ATM Line Card Configuration

Router#show atm vc VCD / Peak Avg/Min Burst Interface Name VPI VCI Type Encaps Kbps Kbps Cells Sts 2/0/0 1 0 16 PVC ILMI149760UP 2/0/0 9 0 100 PVC MUX 149760UP 2/0/0.2 7 2 32 PVC SNAP149760UP 2/0/0 8 2 33 PVC SNAP149760UP 2/0/0 18 2 100 PVC SNAP149760UP 2/0/0.2 6 4 24 PVC SNAP149760UP 2/0/0 2 25 3 PVC F4-OAM 50000UP 2/0/0 3 25 4 PVC F4-OAM 50000UP 2/0/0 14 25 100 PVC SNAP 50000 50000 0UP 2/0/0 16 25 101 PVC SNAP 50000 50000 0UP 2/0/0 17 25 102 PVC SNAP 50000 50000 0UP 2/0/0 10 26 3 PVC F4-OAM 50000UP 2/0/0 11 26 4 PVC F4-OAM50000UP 2/0/0 12 27 3 PVC F4-OAM 50000UP 2/0/0 13 27 4 PVC F4-OAM 50000UP 2/0/0 19 33 100 PVC SNAP 10000 8000 10UP Router#

show atm vp

Use the show atm vp command to display information about the VPs on the interface.

Router#show atm vp Data CES Peak CES Interface VPI VCs VCs Kbps Kbps Status ATM2/0/0 25 3 0 50000 0 ACTIVE ATM2/0/0 26 0 0 50000 0 ACTIVE ATM2/0/0 27 0 0 50000 0 ACTIVE Router#

show atm pvc

Use the show atm pvc vpi_number/vci_number command to display detailed information about a specific PVC.

Router#show atm pvc 0/100

ATM2/0/0: VCD: 9, VPI: 0, VCI: 100 UBR, PeakRate: 149760 AAL5-MUX, etype:0x800, Flags: 0xC23, VCmode: 0x0 OAM frequency: 0 second(s), OAM retry frequency: 1 second(s) OAM up retry count: 3, OAM down retry count: 5 OAM Loopback status: OAM Disabled OAM VC state: Not Managed ILMI VC state: Not Managed InARP DISABLED InPkts: 0, OutPkts: 0, InBytes: 0, OutBytes: 0 InPRoc: 0, OutPRoc: 0, Broadcasts: 0 InFast: 0, OutFast: 0, InAS: 0, OutAS: 0 InPktDrops: 0, OutPktDrops: 0 Out CLP=1 Pkts: 0 OAM cells received: 0 F5 InEndloop: 0, F5 InSegloop: 0, F5 InAIS: 0, F5 InRDI: 0 OAM cells sent: 0 F5 OutEndloop: 0, F5 OutSegloop: 0, F5 OutRDI: 0 OAM cell drops: 0 PVC Discovery: NOT_VERIFIED Status: UP Router#

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CHAP TER

8-Port E3/DS3 ATM Line Card Configuration

This chapter describes procedures for configuring the Cisco 10000 series 8-Port E3/DS3 ATM line card, hereafter known as the 8-Port E3/DS3 ATM line card.

The 8-Port E3/DS3 ATM line card has eight E3 or DS3 (T3) copper interface terminations that provide Asynchronous Transfer Mode (ATM) serial interfaces and perform Layer 2 ATM functions.

This chapter contains the following sections:

• Software Support, page 2-1

• Default Values, page 2-2

• Line Card VC Limitations, page 2-2

• Interface Syntax, page 2-3

• Line Card Interface Configuration Examples, page 2-4

• Line Card Commands, page 2-6

Software Support

Table 2-1 shows the minimum Cisco IOS release on each release train that supports the 8-Port E3/DS3

ATM line card.

Ta b l e 2-1 8-Port E3/DS3 ATM Line Card Software Support

Required PRE Minimum Cisco IOS Releases

PRE2 Cisco IOS Release 12.2(16)BX and later releases of Cisco IOS Release 12.2BX

Cisco IOS Release 12.3(7)XI and later releases of Cisco IOS Release 12.3XI Cisco IOS Release 12.2(28)SB and later releases of Cisco IOS 12.2SB

Checking Hardware and Software Compatibility

The PRE installed in the Cisco 10000 series router chassis must support the Cisco IOS software running on the router. Use the show version command to check the PRE version installed.

http://www.cisco.com/cgi-bin/Support/CompNav/Index.pl

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2-1

Chapter 2 8-Port E3/DS3 ATM Line Card Configuration

Default Values

This tool does not verify whether line cards within a system are compatible, but does provide the minimum Cisco IOS requirements for individual hardware line cards, modules, or options.

You must be a registered user on Cisco.com to access this tool.

Default Values

Table 2-2 lists default configuration values for the 8-Port E3/DS3 ATM line card. This table also includes

the commands used to modify a default values, and provides information about values to set on the remote end of the connection.

Ta b l e 2-2 8-Port E3/DS3 ATM Line Card Defaults

Remote Side

Command Name Default Setting Command Syntax

mtu (maximum transmission unit)

atm clock internal line [no] atm clock internal opposite

loopback loopback none [no] loopback [line | diagnostic | payload] —

4470 bytes [no] mtu bytes same

Setting

Line Card VC Limitations

The Cisco 10000 series router supports four ATM service categories for virtual circuits (VCs):

• Constant Bit Rate (CBR)

• Variable Bit Rate-non-real-time (VBR-nrt)

• Unspecified Bit Rate (UBR) with a peak cell rate (PCR), referred to as shaped UBR

• UBR without a PCR, referred to as unshaped UBR

The segmentation and reassembly (SAR) mechanism configures priority and additional traffic management parameters for the various ATM service categories. SAR sets for the service categories.

Ta b l e 2-3 ATM Service Categories

Parameter CBR VBR-rt VBR-nrt Shaped UBR Unshaped UBR

Priority 0 1 2 3 None

The number of SAR priority levels and the service categories supported at each priority level vary from line card to line card. For example, the 8-port E3/DS3 supports the two levels of priority and the service categories listed in the

Table 2-4.

Table 2-3 lists the priority levels the

Table 2-4 describes how to

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Chapter 2 8-Port E3/DS3 ATM Line Card Configuration

Ta b l e 2-4 Maximum Number of VCs per Priority per Port

ATM Line Card SAR Priority Levels VC Rate Maximum Number of VCs per Priority

8-Port E3/DS3 0 = CBR VCs

0 = VBR-nrt VCs 1 = UBR VCs

Half line rate and below

Interface Syntax

SAR limit / number of PHYs / number of priority levels

2 priority system:

65,536 / 8 / 2 = 4096 VCs per priority level per port

Interface Syntax

To specify an interface number in a configuration command, use the syntax in Tab le 2-5 to identify interfaces and subinterfaces on the 8-Port E3/DS3 ATM line card in the Cisco series 10000 router.

Ta b l e 2-5 8-Port E3/DS3 ATM Line Card Interface Syntax

Type of Interface Router Slot Subslot Port Subinterface

8-Port E3/DS3 interface 10008 1 through 8/ 0/ 0 to 7 —

8-Port E3/DS3 subinterface 10008 1 through 8/ 0/ 0.n to 7.n n = 1 to 4294967295

8-Port E3/DS3 interface 10005 1 through 5/ 0/ 0 to 7 —

8-Port E3/DS3 subinterface 10005 1 through 5/ 0/ 0.n to 7.n n = 1 to 4294967295

Examples:

• Modify a permanent virtual circuit (PVC) associated with an interface.

Router(config)# interface atm 2/0/0 Router(config-if)# pvc 0/200 Router(config-if-atm-vc)#

• Modify a PVC associated with a subinterface.

Router(config)# interface atm 7/0/0.1 Router(config-subif)# pvc 0/101 Router(config-if-atm-vc)#

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Chapter 2 8-Port E3/DS3 ATM Line Card Configuration

Line Card Interface Configuration Examples

This section provides sample procedures for configuring the 8-Port E3/DS3 ATM line card for E3 or T3 connections, as well as creating ATM subinterfaces, permanent virtual circuits (PVCs), and virtual circuit (VC) classes. Procedures for enabling Integrated Local Management Interface (ILMI) are also included.

Creating a Subinterface

Use the following procedure to create a subinterface on an 8-Port E3/DS3 ATM line card interface.

Step 1 Separate the ATM interface into subinterfaces using the interface command. You can create either a

point-to-point or multipoint subinterface.

In the following example, multipoint subinterface number 1 is created on port 0 of the 8-Port E3/DS3 ATM line card in slot 2.

Router(config)# interface atm 2/0/0.1 multipoint Router(config-subif)#

Step 2 Assign an IP address and subnet mask to the subinterface using the ip address command, as shown in

Creating a PVC

Step 1 Enter interface or subinterface configuration mode.

the following example:

Router(config-subif)# ip address 172.27.48.209 255.255.0.0

You created ATM subinterface 2/0/0.1. To configure or modify this interface, use the following command:

Router(config)# interface atm 2/0/0.1 Router(config-subif)#

You can create multiple PVCs on an 8-Port E3/DS3 ATM line card interface. You can create PVCs on an interface or subinterface.

To create a PVC, perform the following steps:

Router(config-subif)# pvc 0/100 Router(config-if-atm-vc)#

2-4

Step 2 Use the protocol ip command to assign a peer IP address to the PVC, as shown in the following example:

Router(config-if-atm-vc)# protocol ip 172.16.32.49 Router(config-if-atm-vc)#

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Creating an ATM VC Class

This procedure demonstrates how to create an ATM VC class. An ATM VC class is a PVC boilerplate—a PVC description that you can apply to one or more PVCs.

To create an ATM VC class, perform the following steps:

Step 1 From global configuration mode, enter the vc-class atm name command, where name is the name value

you assign. The following example shows how to create the ATM VC class named boston.

Router(config)# vc-class atm boston Router(config-vc-class)#

Step 2 Enter commands to describe the ATM VC class you named boston. This example shows how to specify

that the boston class uses AAL5+MUX encapsulation with a variable bit-rate non real-time (VBR-NRT) PVC.

Router(config-vc-class)# encapsulation aal5mux ip Router(config-vc-class)# vbr-nrt 30000 20000 128 Router(config-vc-class)# exit Router(config)#

Line Card Interface Configuration Examples

You have created a VC class named boston. The next procedure describes steps for applying this class to a PVC or subinterface.

Applying a VC Class

You can apply a VC class (created in the previous procedure) to a PVC or a subinterface.

• In the following example, the class named boston is applied to a new PVC (0/102) in subinterface

5/0/0.2.

Router(config)# interface atm 5/0/0.2 Router(config-subif)# pvc 0/102 Router(config-if-atm-vc)# class-vc boston Router(config-if-atm-vc)#

• In the following example, the class named boston is applied to subinterface 5/0/0.1.

Router(config)# interface atm 5/0/0.1 Router(config-subif)# class-int boston Router(config-subif)#

You have completed the steps for assigning a VC class to a PVC.

Enabling ILMI PVC Discovery

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You can enable ILMI to automatically discover PVCs on neighboring switches and duplicate those PVC entries on the 8-Port E3/DS3 ATM line card.

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Line Card Commands

To enable ILMI, perform the following steps:

Step 1 Create PVC 0/16 on the main interface as shown in the following example:

Router(config)# interface atm 5/0/0 Router(config-if)# pvc 0/16 ilmi Router(config-if-atm-vc)# exit Router(config-if)#

Step 2 Enable ILMI PVC discovery for the selected port (step 1 references port 0).

Router(config-if)# atm ilmi-pvc-discovery

You have completed the steps required to run ILMI PVC discovery. You can use the show atm pvc command to display the PVCs on the Cisco 10000 series router.

Completing a Configuration

This section offers general information on creating and completing a configuration of an 8-Port E3/DS3 ATM line card.

To configure an interface, perform the following steps:

Chapter 2 8-Port E3/DS3 ATM Line Card Configuration

Step 1 Enter interface configuration mode and specify necessary parameters, such as the IP address and subnet

mask.

Step 2 After you enter all of the commands to complete the configuration, press Ctrl-Z (hold down the Control

key while you press Z) to exit configuration mode.

Step 3 Write the new configuration to memory:

Router# copy running-config startup-config

The system displays an OK message when the configuration is stored.

To check your completed configuration, use the show commands. For more information about show commands, see

Useful show Commands, page 2-21.

Line Card Commands

The 8-Port E3/DS3 ATM line card allows you to specify eight E3 or eight T3 interfaces. You can put all the PVCs on the interfaces, or you can create associated subinterfaces. This section describes the principal commands for customizing interfaces and PVCs:

• Global Configuration Commands, page 2-7

• ATM Interface and Subinterface Commands, page 2-7

• ATM PVC Commands, page 2-16

• Useful show Commands, page 2-21

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Global Configuration Commands

A PVC boilerplate is a PVC description that you can apply to one or more PVCs or interfaces.

To create a PVC boilerplate, use the vc-class atm command in global configuration mode:

vc-class atm class_name

Where class_name is any value that describes the VC class.

After you enter the vc-class atm command, you enter VC class configuration mode. In this mode, you describe the action you want the class to take by entering commands and their arguments. These commands and arguments are described in the

In the following example, an ATM VC class named paris is created and defined. This example shows how to specify that the class uses AAL5+MUX

Router(config)# vc-class atm paris Router(config-vc-class)# encapsulation aal5mux ip Router(config-vc-class)# vbr-nrt 30000 20000 128 Router(config-vc-class)# exit Router(config)#

For information on applying a VC class name, see the “Attaching an ATM VC Class to an Interface or

Subinterface” section on page 2-12 and the “Attaching an ATM VC Class to a PVC” section on page 2-18.

Line Card Commands

“ATM PVC Commands” section on page 2-16.

encapsulation and a VBR-NRT PVC.

ATM Interface and Subinterface Commands

This section describes how to configure ATM interfaces and subinterfaces using the principle commands described in the following sections:

• Setting the Line Card to E3 or T3 mode, page 2-8

• Setting the Line Card Framing, page 2-9

• Changing the Mode of the Line Card, page 2-8

• Creating and Entering Subinterfaces, page 2-10

• Attaching an ATM VC Class to an Interface or Subinterface, page 2-12

• Creating ATM PVPs, page 2-12

• Creating a PVC, page 2-13

• Enabling ATM ILMI, page 2-14

• Activating ATM ILMI PVC Discovery, page 2-14

• Specifying the ATM ILMI Keep-Alive Rate, page 2-14

• Configuring the ATM Clock, page 2-15

• Configuring Cable Length, page 2-15

• Controlling ATM Alarm Reporting, page 2-15

• Running Loopbacks, page 2-16

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Line Card Commands

Setting the Line Card to E3 or T3 mode

You must configure the 8-Port E3/DS3 ATM line card for either E3 or T3 from interface configuration mode.

Note When you configure the 8-Port E3/DS3 ATM line card for E3 or T3, all 8 ports of the line card operate

in the mode you have selected.

atm dsx3mode {e3 | t3}{adm | plcp}

Where:

adm means ATM direct mapping

plcp means physical layer convergence procedure (PLCP)—specifications that map ATM cells into

physical media, such as T3 or E3, and define certain management information.

The default is t3 adm.

In the following example, the 8-Port E3/DS3 ATM line card located in slot 2 is configured for E3 mode with PLCP:

Router(config)# interface atm 2/0/0 Router(config-if)# atm dsx3mode e3 plcp

Chapter 2 8-Port E3/DS3 ATM Line Card Configuration

Changing the Mode of the Line Card

The 8-Port E3/DS3 ATM line card has four modes (e3 adm, e3 plcp, t3 adm and t3 plcp), the default mode being t3 adm. Each mode has it own bandwidth and cell delay variation tolerance (CDVT) values.

When a line card is freshly inserted, the default mode of the card can be changed. However, if VCs, VPs or subinterfaces have already been configured on the line card, the line card must first be removed and reprovisioned prior to the mode change.

To change the mode of an already provisioned card use the following commands in the configuration mode:

hw-module slot <> shut

no card <>

no hw-module slot <> shut

After the line card is restarted you can change the mode, and re-apply the configurations that were lost during module shutdown.

The following example shows how to change the mode of an already provisioned card, from E3 mode with ADM to E3 mode with PLCP.

Router(config)# hw-module slot 2/0 shut Router(config)# no card 2/0 Router(config)# no hw-module slot 2/0 shut

To change the mode of the line card:

Router(config)# interface atm 2/0/0 Router(config-if)# atm dsx3mode e3 plcp

2-8

To re-apply the configurations to the line card:

Router(config)#interface atm 2/0/0.1 point-to-point Router(config-subif)#pvc 1/100 Router(config-if-atm-vc)#vbr-nrt 4000 4000

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Router(config-if-atm-vc)#end

Setting the Line Card Framing

The 8-Port E3/DS3 ATM line card supports ADM and PLCP framing on E3 and T3 connections. The following sections describe how to set T3 ADM, T3 PLCP, E3 ADM, and E3 PLCP framing.

Setting T3 ADM Framing

If you configured the 8-Port E3/DS3 ATM line card for T3 ADM using the atm dsx3mode ds3 adm command, configure the framing using the atm

[no] atm framing {cbitadm | m23adm}

Where:

cbitadm is C-bit ADM T3 Framing

m23adm is M23 ADM T3 Framing

The default is cbitadm.

In the following example, M23 ADM T3 framing is set:

Router(config)# interface atm 2/0/0 Router(config-if)# atm framing m23adm

Line Card Commands

framing command in interface configuration mode.

Setting T3 PLCP Framing

Setting E3 ADM Framing

If you configured the 8-Port E3/DS3 ATM line card for T3 PLCP using the atm dsx3mode ds3 plcp command, configure the framing using the atm

[no] atm framing {cbitplcp | m23plcp}

framing command from interface configuration mode.

Where:

cbitplcp is C-bit PLCP T3 Framing

m23plcp is M23 PLCP T3 Framing

The default cbitplcp

In the following example, C-bit PLCP T3 framing is set:

Router(config)# interface atm 2/0/0 Router(config-if) atm framing cbitplcp

If you configured the 8-Port E3/DS3 ATM line card for E3 ADM using the atm dsx3mode e3 adm command, configure the framing using the atm

[no] atm framing {g751adm | g832adm}

framing command in interface configuration mode.

Where:

g751adm is G.751 ADM E3 framing

g832adm is G.832 ADM E3 framing

The default is g751adm.

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In the following example, G.751 ADM E3 framing is set:

Router(config)# interface atm 2/0/0

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Line Card Commands

Router(config-if)# atm framing g751adm

Setting E3 PLCP Framing

If you configured the 8-Port E3/DS3 ATM line card for E3 PLCP using the atm dsx3mode e3 plcp command, configure the framing using the atm

[no] atm framing g751plcp

Where g751plcp is G.751 PLCP E3 framing

The default is g751plcp.

In the following example, G.751 PLCP E3 framing is set:

Router(config)# interface atm 2/0/0 Router(config-if)# atm framing g751plcp

Creating and Entering Subinterfaces

Use the interface command to segment an E3 or T3 ATM main interface into multiple subinterfaces to simplify line card management, to create interfaces with different MTU sizes, and to create connections to different networks.

interface atm slot/subslot/port.subinterface type no interface atm slot/subslot/port.subinterface type

Chapter 2 8-Port E3/DS3 ATM Line Card Configuration

framing command in interface configuration mode.

Where:

• slot is 1 to 5 for a Cisco 10005 router.

• slot is 1 to 8 for a Cisco 10008 router.

• subslot is always 0 for a full-height line card.

• port is 0 to 3.

• subinterface is a value from 1 to 4294967295.

• type is always point-to-point or multipoint.

To remove a subinterface and its PVCs, use the no interface command. To change a subinterface type, you must first remove the subinterface.

Examples:

• Create subinterface number 1 at port 3 for 8-Port E3/DS3 ATM line card in slot 1.

Router(config)# interface atm 1/0/3.1 point-to-point Router(config-subif)#

• Enter an existing subinterface.

Router(config)# interface atm 1/0/3.1 Router(config-subif)#

• Use a multipoint subinterface.

If you want multiple PVCs to go to the same network, you must create a multipoint subinterface. For example:

Router(config)# interface atm 4/0/2.2 multipoint Router(config-subif)#

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Router A

Cisco 10000 ESR

46927

Router B

Router C

ATM

131.108.168.0

131.108.168.1

131.108.171.0

131.108.168.2

int atm 2/0/0.1

int atm 5/0/0.1

int atm 4/0/0.2

131.108.168.3

131.108.169.0

131.108.169.2

131.108.170.3

131.108.170.0

After you create the subinterface, you can create PVCs that are attached to the same network.

Figure 2-1 shows a multipoint subinterface on a fully meshed network. Fully meshed indicates that

any workstation can communicate with any other workstation.

Figure 2-1 Multipoint ATM Configuration

The following examples show the commands used to configure the ATM interfaces for routers A, B, and C (see

Figure 2-1), including the configuration commands you must enter to configure the multipoint

connections in that network:

Router A

Router(config)# interface atm 4/0/0.2 multi Router(config-subif)# ip address 131.108.168.1 255.255.255.0 Router(config-subif)# pvc 0/35 Router(config-if-atm-vc)# protocol ip 131.108.168.2 broadcast Router(config-if-atm-vc)# exit Router(config-subif)# pvc 0/36 Router(config-if-atm-vc)# protocol ip 131.108.168.3 broadcast Router(config-if-atm-vc)# exit Router(config-subif)# exit Router(config)#

Line Card Commands

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Router B

Router(config)# interface atm 2/0/0.1 multi Router(config-subif)# ip address 131.108.168.2 255.255.255.0 Router(config-subif)# pvc 0/35 Router(config-if-atm-vc)# protocol ip 131.108.168.1 broadcast Router(config-if-atm-vc)# exit Router(config-subif)# pvc 0/37 Router(config-if-atm-vc)# protocol ip 131.108.168.3 broadcast Router(config-if-atm-vc)# exit Router(config-subif)# exit Router(config)#

Router C

Router(config)# interface atm 5/0/0.1 multi Router(config-subif)# ip address 131.108.168.3 255.255.255.0 Router(config-subif)# pvc 0/36 Router(config-if-atm-vc)# protocol ip 131.108.168.1 broadcast Router(config-if-atm-vc)# exit Router(config-subif)# pvc 0/37 Router(config-if-atm-vc)# protocol ip 131.108.168.2 broadcast Router(config-if-atm-vc)# exit Router(config)#

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Line Card Commands

Attaching an ATM VC Class to an Interface or Subinterface

Use the class-int command to attach an ATM VC class to an interface or subinterface. If you customize a PVC, that customization takes precedence over the interface class.

class-int class_name

Where class_name is the name of the class created using the global configuration class-vc atm command.

In the following example, a VC class named paris is created and attached to subinterface 3/0/0.1.

Router(config)# vc-class atm paris Router(config-vc-class)# encapsulation aal5mux ip Router(config-vc-class)# vbr-nrt 30000 20000 128 Router(config-vc-class)# exit Router(config)# interface atm 3/0/0.1 Router(config-subif)# class-int paris

Creating ATM PVPs

To create a permanent virtual path (PVP) used to multiplex one or more VBR-NRT VCs, use the atm pvp interface configuration command.

atm pvp vpi peak-rate [no-f4-oam] no atm pvp vpi

Chapter 2 8-Port E3/DS3 ATM Line Card Configuration

Where:

• vpi is the ATM network virtual path identifier (VPI) of the VC used to multiplex the permanent

virtual path. The range is 0 to 255. You must use a VPI value that is not already in use by a VC.

• peak-rate is the maximum rate in kilobits per second (kbps) at which the PVP can transmit data. For

an E3 interface, you can enter values from 38 kbps to 34,368 kbps. For a T3 interface, you can enter values from 38 kbps to 44,200

kbps. The PVP peak rate value supersedes all rate values set for

VBR-NRT PVCs associated with the PVP.

Interface Type Allowable Kbps Range for peak-rate

E3 38 to 34,368

T3 38 to 44,200

• no-f4-oam (optional) restricts the PVP from passing operations/administration/maintenance (OAM)

packets. When you create a PVP, the system creates (by default) PVCs with VCI values of 3 and 4 for each PVP which passes OAM packets.

To verify the configuration of a PVP, use the show atm vp exec command.

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The following example shows how to create a PVP with a peak rate of 30,000 kbps. Subsequently, the created VCs are multiplexed onto this virtual path.

Router(config)# interface atm 7/0/0 Router(config-if)# atm pvp 25 30000 Router(config-if)# pvc 25/100 Router(config-if-atm-vc)# vbr-nrt 10000 5000 16 Router(config-if-atm-vc)# exit Router(config-if)# pvc 25/101 Router(config-if-atm-vc)# vbr-nrt 10000 5000 16 Router(config-if-atm-vc)# exit Router(config-if)# pvc 25/102 Router(config-if-atm-vc)# vbr-nrt 10000 5000 16 Router(config-if-atm-vc)# exit Router(config)#

Creating a PVC

This section describes how to create a permanent virtual circuit.

Note You can only create one PVC on a point-to-point interface. Multiple PVCs can be created on a multipoint

interface.

Line Card Commands

You can establish an unspecified bit rate (UBR) PVC by entering the pvc command:

pvc [word] [vpi_value/]{vci_value} [ilmi]

• Where:

• word is an optional name referring to this connection.

• vpi_value is in the range from 0 to 255. If you do not specify a VPI value, the system assigns the

value 0.

• vci_value is in the range 1 to 65535. The VCI value should be 33 or greater because all

lower-numbered PVCs are already assigned.

• ilmi parameter maps the ILMI channel to the PVC for this interface. You can only use this argument

for PVCs created on the main interface. We recommend that you use this argument with PVC 0/16. For more information about activating ILMI, see the

“Activating ATM ILMI PVC Discovery”

section on page 2-14.

By default, the pvc command creates a UBR PVC. To specify a VBR-NRT PVC, see the “Configuring

VBR-NRT” section on page 2-19.

Examples:

• Create PVC 0/105 on the interface.

Router(config)# interface atm 5/0/0 Router(config-if)# pvc 105 Router(config-if-atm-vc)#

• Create PVC 2/102 on a subinterface.

Router(config)# interface atm 5/0/0.1 Router(config-subif)# pvc 2/102 Router(config-if-atm-vc)#

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Line Card Commands

Enabling ATM ILMI

Use the atm ilmi-enable interface configuration command to enable ILMI on a port.

atm ilmi-enable no atm ilmi-enable

The default is ILMI is enabled, but you should disable the ILMI if the peer does not support ILMI. For peers to be able to exchange ILMI information, you must create PVC 0/16 using the ilmi argument.

The following example shows how to disable ILMI:

Router(config)# interface atm 5/0/0 Router(config-if)# no atm ilmi-enable

Activating ATM ILMI PVC Discovery

This command causes ILMI-compliant devices to propagate PVCs. Use the atm ilmi-pvc-discovery command in interface configuration mode to activate ATM PVC discovery.

atm ilmi-pvc-discovery [subinterface] no atm ilmi-pvc-discovery [subinterface]

Chapter 2 8-Port E3/DS3 ATM Line Card Configuration

Where:

• subinterface instructs the software to associate all PVCs with existing subinterface numbers equal

to their VPI numbers. For example: PVC 2/102 is listed under subinterface 7/0/0.2, PVC 12/156 is listed under 7/0/0.12, and so on.

Note The subinterface argument associates PVCs only with subinterfaces that have already been

created. If there is no subinterface for a VPI value, the system associates the PVC interface.

The following example shows how to enable PVC discovery on the ATM interface 7/0/0, for port 0, on an 8-Port E3/DS3 ATM line card that has ILMI enabled.

Router(config)# interface atm 7/0/0 Router(config-if)# pvc 0/16 ilmi Router(config-if-atm-vc)# exit Router(config-if)# atm ilmi-pvc-discovery

Specifying the ATM ILMI Keep-Alive Rate

Use the atm ilmi-keepalive command to specify the ILMI keep-alive rate.

atm ilmi-keepalive [seconds [retry counts]]

Where:

• seconds is a value from 1 to 65535

• retry counts is a value from 2 to 5

with the main

2-14

The default value for seconds is 5000 and for retry counts is 4.

The following example shows how to enable ILMI keepalives for the ATM interface 5/0/0:

Router(config)# interface atm 5/0/0 Router(config-if)# atm ilmi-keepalive 10000 retry 3

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Configuring the ATM Clock

Use the atm clock internal command to configure the clock source as internal.

atm clock {internal | line} no atm clock internal

The default clock setting is no atm clock internal, which means that clocking is derived from the line.

In the following example, clocking is set to internal.

Router(config)# interface atm 5/0/0 Router(config-if)# atm clock internal

Configuring Cable Length

The atm lbo command improves signal strength for losses associated with lengthy cables. To specify whether the cable attached to the interface is short or long, use the atm lbo command in the following format:

atm lbo {short | long}

Where:

short is for a cable that is less than 225 feet.

long is for a cable that is 225 feet or greater.

Line Card Commands

The default is short.

In the following example, the cable length is set to short:

Router(config)# interface 2/0/0 Router(config-controller)# atm lbo short

Controlling ATM Alarm Reporting

To control alarms so that they are logged to the console for an ATM interface, use the atm report command in interface configuration mode.

atm report {los | oof | ais | ferf | lcd} no atm report {los | oof | ais | ferf | lcd}

Where:

• los—Loss of Signal

• oof—Out of Frame

• ais—Alarm Indication Signal

• ferf—Far End Receive Failure

• lcd—Loss of cell delineation

To disable logging of alarms, use the no form of this command.

Reporting an alarm means that the alarm can be logged to the console. Not all alarms are logged. The alarm hierarchy rules dictate that only the most severe alarm of an alarm group is reported. Whether an alarm is reported or not, you can view the current state of a defect by checking the Active Defects line from the show controllers atm command output.

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Line Card Commands

The following example shows how to enable reporting of SD-BER and AIS alarms on the interface:

Router(config)# interface atm 3/0/0 Router(config-if)# atm report los Router(config-if)# atm report ais Router(config-if)# end Router#

Running Loopbacks

Use the loopback command to run a loopback tests.

loopback {diagnostic | payload | line} no loopback {diagnostic | payload | line}

Where:

• diagnostic means transmit data is looped to receive data.

• payload means the DS3 or E3 overhead bits are regenerated and inserted into the received DS3 or

• line means the received data stream is looped to the transmit data stream.

Chapter 2 8-Port E3/DS3 ATM Line Card Configuration

E3 data stream, and the resulting stream is transmitted.

The following example shows how to run the diagnostic loopback:

Router(config)# interface atm 5/0/0 Router(config-if)# loopback diagnostic

ATM PVC Commands

After you create a PVC using the pvc command, you can customize the PVC or a VC class by using the commands described in this section.

• Specifying a Protocol, page 2-17

• Configuring a Broadcast, page 2-17

• Configuring Inverse ARP, page 2-18

• Attaching an ATM VC Class to a PVC, page 2-18

• Configuring VBR-NRT, page 2-19

• Specifying Encapsulation, page 2-19

• Enabling ILMI Management, page 2-20

• Configuring OAM Retry, page 2-20

• Enabling OAM Loopback Cell Generation and Management, page 2-20

2-16

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Chapter 2 8-Port E3/DS3 ATM Line Card Configuration

Specifying a Protocol

Use the protocol ip command in interface-ATM-VC configuration mode or VC-class configuration mode to configure a static map for an ATM PVC or VC class.

protocol ip {protocol-address | arp | cdp | clns | clns_es | clns_is | cmns | compressedtcp | {ip {address} | ppp | pppoe | snapshot}} [[no] broadcast]}

no protocol ip {protocol-address | arp | cdp | clns | clns_es | clns_is | cmns | compressedtcp | {ip {address} | ppp | pppoe | snapshot}} [[no] broadcast]}

Where:

• protocol-address is the peer destination address that is being mapped to a PVC.

• arp (valid only for IP protocols on PVCs) enables ARP on an ATM PVC.

• cdp is the Cisco Discovery Protocol.

• clns is ISO Connectionless Network Service (CLNS).

• clns_es is ISO CLNS end system.

• clns_is is ISO CLNS intermediate system.

• cmns is ISO Connection-Mode Network Service (CMNS).

• compressedtcp is compressed TCP.

Line Card Commands

• ip is IP.

• ppp is LLC PPP over AAL5 encapsulation.

• pppoe is PPP over Ethernet.

• snapshot is Snapshot routing support.

• [no] broadcast (optional) indicates that this PVC sends out broadcast packets (for example, IGRP

updates). Pseudo broadcasting is supported. The broadcast keyword of the protocol ip command takes precedence if you previously configured the broadcast command on the ATM PVC.

For PVCs created under point-to-point subinterfaces, broadcast is enabled by default. For PVCs created under multipoint subinterfaces, use the broadcast argument to propagate IP routes.

Use the no form of this command to remove a static map.

Note Use the inarp command to configure Inverse ARP frequency.

The following example shows how to specify IP protocol on an ATM PVC:

Router(config)# interface atm 5/0/0 Router(config-if)# pvc 0/105 Router(config-if-atm-vc)# protocol ip 172.16.32.49

Configuring a Broadcast

Use the broadcast command to configure broadcast packet duplication and transmission for an ATM PVC or VC class.

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Line Card Commands

Note The broadcast argument within the protocol ip command takes precedence over the broadcast

Chapter 2 8-Port E3/DS3 ATM Line Card Configuration

command. See the “Specifying a Protocol” section on page 2-17 for more information.

Use the default form of this command to restore the default behavior described below.

broadcast no broadcast

The default is broadcast.

Use the no form of this command to disable transmission of broadcast packets.

The following example shows how to use the broadcast command to restore default behavior:

Router(config)# interface atm 5/0/0.4 Router(config-subif)# pvc 0/105 Router(config-if-atm-vc)# broadcast Router(config-if-atm-vc)#

Configuring Inverse ARP

Use the inarp command in interface-ATM-VC configuration mode or VC-class configuration mode to configure the inverse ARP time period for an ATM PVC or VC class.

inarp minutes no inarp minutes

Where minutes is the inverse ARP frequency from 1 to 60 minutes.

The default frequency is 15 minutes.

Use the no form of this command to restore the default inverse ARP time period behavior.

Note This command is supported only for AAL5+SNAP encapsulation (the default) when Inverse ARP is

enabled. Use the encapsulation command to configure AAL5+SNAP encapsulation and the protocol command to enable Inverse ARP.

The following example shows how to specify an inverse ARP frequency of 40 minutes on an ATM PVC:

Router(config)# interface atm 5/0/0 Router(config-if)# pvc 0/105 Router(config-if-atm-vc)# inarp 40

Attaching an ATM VC Class to a PVC

2-18

Use the class-vc command to attach an ATM VC class to a PVC.

class-vc name

Where:

• name is the name of the class created with the global configuration class-vc atm command.

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Chapter 2 8-Port E3/DS3 ATM Line Card Configuration

The following example shows how to assign an ATM VC class named boston to an ATM PVC:

Router(config)# interface atm 5/0/0.4 Router(config-subif)# pvc 2/100 Router(config-if-atm-vc)# class-vc boston

Configuring VBR-NRT

You can use the vbr-nrt command in PVC configuration mode or VC-class configuration mode.

vbr-nrt peak_cell_rate sustainable_cell_rate maximum_burst_size no vbr-nrt peak_cell_rate sustainable_cell_rate maximum_burst_size

Where:

• peak_cell_rate is the peak cell rate (PCR). For an E3 interface, you can enter values from 38 kbps

to 34,368 kbps. For a T3 interface, you can enter values from 38 kbps to 44,200 kbps. The PCR must be at least equal to the sustainable cell rate

• sustainable_cell_rate is the sustainable cell rate (SCR) from 38 kbps to the PCR.

• maximum_burst_size is a number from 1 to 65,535, which represents maximum burst size (MBS) in

cells.

Line Card Commands

(SCR).

The default class of service is unspecified bit rate (UBR) running at the maximum line rate of the physical interface.

Use the no form of this command to remove the VBR-NRT parameters and return the PVC to its default of UBR.

The following example shows how to configure the VBR-NRT traffic parameters on an ATM PVC:

Router(config)# interface atm 5/0/0 Router(config-if)# pvc 0/105 Router(config-if-atm-vc)# vbr-nrt 10000 5000 200

Specifying Encapsulation

Use the encapsulation command in PVC configuration mode or VC-class configuration mode to specify the ATM adaptation layer (AAL) and encapsulation type for an ATM

encapsulation {aal5mux ip | aal5snap} no encapsulation {aal5mux ip | aal5snap}

Where:

• aal5mux ip is AAL5+MUX encapsulation.

• aal5snap is AAL5+LLC/SNAP encapsulation (the default).

Use the no form of this command to return an encapsulation to the default SNAP.

The following example shows how to specify aal5mux ip encapsulation for an ATM PVC:

Router(config)# interface atm 5/0/0.4 Router(config-subif)# pvc 0/105 Router(config-if-atm-vc)# encapsulation aal5mux ip

PVC or VC class.

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Line Card Commands

Enabling ILMI Management

ilmi manage no ilmi manage

Use the no form of this command to disable ILMI management.

The following example shows how to enable ILMI management on an ATM PVC:

Router(config)# interface atm 5/0/0 Router(config-if)# pvc 0/105 Router(config-if-atm-vc)# ilmi manage

Configuring OAM Retry

Use the oam retry command in PVC configuration mode or VC-class configuration mode to configure OAM retry.

oam retry up_value [down_value frequency] no oam retry up_value [down_value frequency]

Chapter 2 8-Port E3/DS3 ATM Line Card Configuration

Where:

• up_value is a number from 1 to 600 that represents the OAM retry count before declaring that a VC

is up.

The default is 3 retries.

• down_value is a number from 1 to 600 that represents the OAM retry count before declaring a VC

is down.

The default is 5 retries.

• frequency is a number from 1 to 1000 that represents the OAM retry polling frequency, in seconds.

The default is 1 second.

Use the no form of this command to return OAM retry to its default values.

The following example shows how to configure OAM retry for an ATM PVC:

Router(config)# interface atm 5/0/0 Router(config-if)# pvc 0/105 Router(config-if-atm-vc)# oam retry 10 10 5

Enabling OAM Loopback Cell Generation and Management

To enable end-to-end F5 OAM loopback cell generation and OAM management for an ATM PVC or VC class, use the oam-pvc command in PVC configuration mode or VC-class configuration mode.

oam-pvc [manage] [frequency] no oam-pvc [manage] [frequency]

2-20

Where:

• manage is an optional keyword that brings down the interface or subinterface if the PVC loopback

fails.

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Chapter 2 8-Port E3/DS3 ATM Line Card Configuration

• frequency (optional) is the number of seconds between transmitting OAM loopback cells. Values

range from 0 to 600 seconds.

The default value is 10 seconds.

Use the no form of this command to disable generation of OAM loopback cells and OAM management.

The following example shows how to enable OAM loopback cell generation for an ATM PVC:

Router(config)# interface atm 5/0/0 Router(config-if)# pvc 0/105 Router(config-if-atm-vc)# oam-pvc 300

Useful show Commands

You can use the following show commands to view ATM interfaces and subinterfaces, and to troubleshoot ATM problems.

show atm vc

Use the show atm vc command to display information about the VCs on the interface.

Router# show atm vc VCD / Peak Avg/Min Burst Interface Name VPI VCI Type Encaps Kbps Kbps Cells Sts 2/0/0 1 0 16 PVC ILMI149760UP 2/0/0 9 0 100 PVC MUX149760UP 2/0/0.2 7 2 32 PVC SNAP149760UP 2/0/0 8 2 33 PVC SNAP149760UP 2/0/0 18 2 100 PVC SNAP149760UP 2/0/0.2 6 4 24 PVC SNAP149760UP 2/0/0 2 25 3 PVC F4-OAM 50000UP 2/0/0 3 25 4 PVC F4-OAM 50000UP 2/0/0 14 25 100 PVC SNAP 50000 50000 0UP 2/0/0 16 25 101 PVC SNAP 50000 50000 0UP 2/0/0 17 25 102 PVC SNAP 50000 50000 0UP 2/0/0 10 26 3 PVC F4-OAM 50000UP 2/0/0 11 26 4 PVC F4-OAM50000UP 2/0/0 12 27 3 PVC F4-OAM 50000UP 2/0/0 13 27 4 PVC F4-OAM 50000UP 2/0/0 19 33 100 PVC SNAP 10000 8000 10UP Router#

Line Card Commands

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show atm vp

Use the show atm vp command to display information about the VPs on the interface.

Router# show atm vp Data CES Peak CES Interface VPI VCs VCs Kbps Kbps Status ATM2/0/0 25 3 0 50000 0 ACTIVE ATM2/0/0 26 0 0 50000 0 ACTIVE ATM2/0/0 27 0 0 50000 0 ACTIVE Router#

show atm pvc

Use the show atm pvc vpi_number/vci_number command to display detailed information about a specific PVC.

Router# show atm pvc 0/100

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Line Card Commands

Chapter 2 8-Port E3/DS3 ATM Line Card Configuration

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CHAP TER

1-Port OC-12 ATM Line Card Configuration

This chapter describes procedures for configuring the Cisco 10000 series 1-Port OC-12 ATM line card, hereafter known as the 1-Port OC-12 ATM line card.

The 1-Port OC-12 ATM line card is a trunk uplink for the Cisco 10000series routers that provides IP packet routing over ATM virtual circuit connections using a single-mode fiber intermediate reach SC connector.

This chapter contains the following sections:

• Software Support, page 3-1

• Default Values, page 3-2

• Line Card VC Limitations, page 3-2

• Interface Syntax, page 3-4

• Interface Configuration Samples, page 3-4

• Commands, page 3-7

Software Support

Table 3-1 shows the minimum Cisco IOS release on each release train that supports the 1-Port OC-12

ATM line card.

Ta b l e 3-1 1-Port OC-12 ATM Line Card Software Support

Required PRE Minimum Cisco IOS Releases

PRE1 Cisco IOS Release 12.0(22)S and later releases of Cisco IOS Release 12.0S

PRE2 Cisco IOS Release 12.0(10)SL and later releases of Cisco IOS Release 12.0SL

PRE3 Cisco IOS Release 12.2(31)SB2 and later releases of Cisco IOS 12.2SB

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Cisco IOS Release 12.0(22)S and later releases of Cisco IOS Release 12.0S Cisco IOS Release 12.3(7)XI and later releases of Cisco IOS 12.3XI Cisco IOS Release 12.2(28)SB and later releases of Cisco IOS 12.2SB

Cisco 10000 Series Router Line Card Configuaration Guide

3-1

Default Values

Checking Hardware and Software Compatibility

The PRE installed in the Cisco 10000 series router chassis must support the Cisco IOS software running on the router. Use the show version command to check the PRE version installed.

http://www.cisco.com/cgi-bin/Support/CompNav/Index.pl

This tool does not verify whether line cards within a system are compatible, but does provide the minimum Cisco IOS requirements for individual hardware line cards, modules, or options.

You must be a registered user on Cisco.com to access this tool.

Default Values

Table 3-2 lists default configuration values for the 1-Port OC-12 ATM line card. This table also includes

the command used to modify a default value, and provides information about values to set on the remote end of the connection.

Chapter 3 1-Port OC-12 ATM Line Card Configuration

Ta b l e 3-2 1-Port OC-12 ATM Line Card Defaults

Remote Side

Command Name Default Setting Command Syntax

mtu (maximum transmission unit)

atm clock internal no atm clock internal [no] atm clock internal opposite

loopback loopback none [no] loopback [line | diagnostic {parallel |

pvc encapsulation aal5snap encapsulation [aal5snap | aal5mux ip] same

9180 bytes [no] mtu bytes same

path | serial}]

Setting

—

Line Card VC Limitations

The Cisco 10000 series router supports four ATM service categories for virtual circuits (VCs):

• Constant Bit Rate (CBR)

• Variable Bit Rate-non-real-time (VBR-nrt)

• Unspecified Bit Rate (UBR) with a peak cell rate (PCR), referred to as shaped UBR

• UBR without a PCR, referred to as unshaped UBR

The segmentation and reassembly (SAR) mechanism configures priority and additional traffic management parameters for the various ATM service categories. SAR sets for the service categories.

Table 3-3 lists the priority levels the

3-2

Ta b l e 3-3 ATM Service Categories

Parameter CBR VBR-rt VBR-nrt Shaped UBR Unshaped UBR

Priority 0 1 2 3 None

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The number of SAR priority levels and the service categories supported at each priority level vary from line card to line card. For example, the 1-port OC-12/STM-1 line card supports the four levels of priority and the service categories listed in

Ta b l e 3-4 Maximum Number of VCs per Priority

ATM Line Card SAR Priority Levels VC Rate Maximum Number of VCs per Priority

1-Port OC-12/ STM-1

0 = CBR VCs

1 = VBR-rt VCs

2 = VBR-nrt VCs

3 = UBR VCs

Table 3-4.

Full line rate SAR limit / 2 / number of priority levels

Half line rate and below

Line Card VC Limitations

Table 3-4 describes how to

With 4 priority system:

65,536 / 2 / 4 = 8192 VCs per priority level

SAR limit / number of priority levels

4 priority system:

65,536 / 4 = 16,384 VCs per priority level

Shaped UBRs on the OC-12 ATM Line Card

On an OC-12 ATM line card, when you configure UBR PVCs with a shaped value (UBR-PCR) and the shaped value is greater than one-half of the line rate (for example, 299,520 Kbps), the following limitations apply:

• The number of VCs the OC-12 line card supports is up to one-half of the VC scaling limit of 16,384

VCs. Cisco IOS software counts each UBR-PVC above 299,520 as two VCs. Therefore, the active VC count must be maintained at the following:

16,384 > (number of VCs at 299,520 and above * 2) + (number of VCs below 299,520)

At any time, if more VCs are active than the allowed number above, the SAR on the line card leaks buffers, which results in a reduced buffer pool for active VCs and the SAR might fail if enough buffers are lost. To recover the lost buffers, reboot the system.

• The router allows you to enter shaping values between 299,520 and 599,040, which the SAR does

not support. The SAR performs shaping in the range of 599,040 and 299,520 to 299,538. If you configure a shaping value between 299,528 and 399,032, the shape rate the SAR returns is unclear.

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• If you initially set a shaping rate of 599,040 and then change to another rate, or you initially

configure a shape rate and change to a rate of 599,040, the router accepts the command and the show commands display the new rate. However, the SAR does not perform shaping correctly until the next reload.

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3-3

Interface Syntax

If you change the shaping rate from 599,040 to a lower rate, the LP shaper in VTMS allows the average rate to be met. However, during traffic bursts, ATM-level shaping is not accurate.

Interface Syntax

To specify an interface number in a configuration command, use the syntax in Tab le 3-5 to identify interfaces on the 1-Port OC-12 ATM line card.

Ta b l e 3-5 1-Port OC-12 ATM Interface Syntax

Type of Interface Slot Subslot Port Subinterface

Main interface 1 to 8/ 0/ 0. —

Subinterface 1 to 8/ 0/ 0. 1 to 4294967295

Examples:

• Modify a PVC associated with the main interface.

Router(config)# interface atm 2/0/0 Router(config-if)# pvc 0/200 Router(config-if-atm-vc)#

Chapter 3 1-Port OC-12 ATM Line Card Configuration

• Modify a permanent virtual circuit (PVC) associated with a subinterface.

Router(config)# interface atm 7/0/0.1 Router(config-subif)# pvc 0/101 Router(config-if-atm-vc)#

Interface Configuration Samples

This section provides sample procedures for creating subinterfaces, permanent virtual circuits (PVCs), virtual circuit (VC) classes, and for enabling Integrated Local Management Interface (ILMI).

Creating a Subinterface

Use the following procedure to create a subinterface.

Step 1 Divide the ATM interface into subinterfaces using the interface command. You can create either a

point-to-point or multipoint subinterface.

In the following example, multipoint subinterface number 1 is created on an 1-Port OC-12 ATM line card in slot 2.

Router(config)# interface atm 2/0/0.1 multipoint Router(config-subif)#

3-4

Step 2 Assign an IP address and subnet mask to the interface using the ip address configuration subcommand,

as shown in the following example:

Router(config-subif)# ip address 172.27.48.209 255.255.0.0 Router(config-subif)#

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You have created interface 2/0/0.1. To enter this interface, use the following command:

Router(config)# interface atm 2/0/0.1 Router(config-subif)#

Creating a PVC

You can create up multiple PVCs on the 1-Port OC-12 ATM line card interface. You can create PVCs on the main interface or on a subinterface.

To create a PVC

Step 1 Enter interface or subinterface configuration mode.

Use the pvc command to specify a virtual path identifier (VPI) value between 0 and 255 and a virtual channel identifier (VCI) value between 0 and 65535. The following example creates a PVC with a VPI value of 0 and VCI value of 100 on a subinterface.

Router(config-subif)# pvc 0/100 Router(config-if-atm-vc)#

Interface Configuration Samples

Step 2 Assign a peer IP address to the PVC using the protocol ip configuration subcommand, as in the

following example:

Router(config-if-atm-vc)# protocol ip 172.16.32.49 Router(config-if-atm-vc)#

Creating a VC Class

This procedure demonstrates how to create an ATM VC class. An ATM VC class is a PVC boilerplate—a PVC description that you can apply to one or more PVCs.

Step 1 To create a PVC boilerplate, use the global configuration mode vc-class atm command. The following

example creates the ATM VC class named boston.

Router(config)# vc-class atm boston Router(config-vc-class)#

Step 2 Enter commands to describe the ATM VC class named boston. This example shows how to specify that

the class uses AAL5+MUX encapsulation and configure a variable bit rate-nonreal time (VBR-NRT) PVC.

Router(config-vc-class)# encaps aal5mux ip Router(config-vc-class)# vbr-nrt 30000 20000 128 Router(config-vc-class)# exit Router(config)#

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You have created a VC class named boston. The next procedure describes how to apply this class to a PVC or subinterface.

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Interface Configuration Samples

Applying a VC Class

You can apply a VC class (created in the previous procedure) to a PVC or an interface.

• In the following example, the class named boston is applied to subinterface 5/0/0.1.

Router(config)# interface atm 5/0/0.1 Router(config-subif)# class-int boston Router(config-subif)#

• In the following example, the class named boston is applied to a new PVC (0/102) in subinterface

5/0/0.2.

Router(config)# interface atm 5/0/0.2 Router(config-subif)# pvc 0/102 Router(config-if-atm-vc)# class-vc boston Router(config-if-atm-vc)#

You have completed the steps for assigning a VC class to a PVC.

Enabling ILMI PVC Discovery

Chapter 3 1-Port OC-12 ATM Line Card Configuration

You can enable ILMI to automatically discover PVCs on neighboring switches and duplicate those PVC entries on the 1-Port OC-12 ATM line card.

To enable ILMI

Step 1 Create PVC 0/16 on the main interface, as shown in the following example:

Router(config)# interface atm 5/0/0 Router(config-if)# pvc 0/16 ilmi Router(config-if-atm-vc)# exit Router(config-if)#

Step 2 In the following example, ILMI PVC discovery is enabled for the 1-Port OC-12 ATM line card.

Router(config-if)# atm ilmi-pvc-discovery

You have completed the steps required for running ILMI PVC discovery. You can use the show atm pvc command to display the PVCs on the Cisco 10000 series router.

Completing a Configuration

This section offers general information on completing a configuration of an 1-Port OC-12 ATM line card.

3-6

Step 1 After you configure the interfaces for ATM, you may need to enter interface configuration mode and

specify routing protocols, network addresses, and so on.

Step 2 After you have included all of the configuration subcommands to complete the configuration, enter

Ctrl-Z (hold down the Control key while you press Z) to exit configuration mode.

Step 3 Write the new configuration to memory:

Router# copy running-config startup-config

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The system displays an OK message when the configuration is stored. After you have completed your configuration, you can check it by using show

Commands

The 1-Port OC-12 ATM line card consists of a single OC-12 interface. You can put all the PVCs on this interface, or you can create subinterfaces. This section describes the principal commands for customizing interfaces and PVCs:

• Global Configuration Command, page 3-7

• Interface and Subinterface Commands, page 3-7

• ATM PVC Commands, page 3-15

• Useful show Commands, page 3-19

Global Configuration Command

Commands

commands.

A PVC boilerplate is a PVC description that you can apply to one or more PVCs or interfaces

To create a PVC boilerplate, use the global configuration mode vc-class atm command.

vc-class atm class_name

Where class_name is any word that describes the class.

After you create the class, you enter VC class configuration mode. In this mode, you describe the action you want the class to take by entering commands and arguments. These commands and arguments are described in the

In the following example, an ATM VC class named cambridge is created and defined. This example shows how to specify that the class uses AAL5+MUX encapsulation and a VBR-NRT PVC.

Router(config)# vc-class atm cambridge Router(config-vc-class)# encaps aal5mux ip Router(config-vc-class)# vbr-nrt 30000 20000 128 Router(config-vc-class)# exit Router(config)#

For information on applying a VC class name, see the “Attaching an ATM VC Class to an Interface”

section on page 3-9 and the “Attaching an ATM VC Class to a PVC” section on page 3-17.

“ATM PVC Commands” section on page 3-15.

Interface and Subinterface Commands

This section describes principal commands for configuring ATM interfaces and subinterfaces. This section describes the following global configuration commands:

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• Creating and Entering Subinterfaces, page 3-8

• Attaching an ATM VC Class to an Interface, page 3-9

• Creating ATM PVPs, page 3-9

• Creating a PVC, page 3-10

• Enabling ATM ILMI, page 3-11

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3-7

Commands

• Activating ATM ILMI PVC Discovery, page 3-11

• Specifying the ATM ILMI Keepalive Rate, page 3-12

• Configuring ATM Clock, page 3-12

• Specifying the ATM Flag, page 3-12

• Controlling ATM Alarm Reporting, page 3-12

• Specifying the ATM Alarm Thresholds, page 3-13

• Controlling the S1 SONET Overhead Byte, page 3-14

• Running Loopbacks, page 3-14

Creating and Entering Subinterfaces

Use the interface command to divide the 1-Port OC-12 ATM line card interface into multiple subinterfaces to simplify management of the card, create interfaces with different MTU sizes, and create connections to different networks.

interface atm slot/subslot/port.subinterface type no interface atm slot/subslot/port.subinterface type

Chapter 3 1-Port OC-12 ATM Line Card Configuration

Where:

• slot is 1 to 8

• subslot and port are both 0

• subinterface is a number from 1 to 4,294,967,295

• type is point-to-point or multipoint

To enter the subinterface at a later time, you do not need to specify the type.

To remove a subinterface and its PVCs, use the no interface command. To change a subinterface type, you must first remove the subinterface.

Examples:

• Create subinterface number 1 for an 1-Port OC-12 ATM line card in slot 1.

Router(config)# interface atm 1/0/0.1 point-to-point Router(config-subif)#

• Enter an existing subinterface.

Router(config)# interface atm 1/0/0.1 Router(config-subif)#

• Use a multipoint subinterface.

If you want multiple PVCs to go to the same network, you must create a multipoint subinterface. For example:

Router(config)# interface atm 4/0/0.2 multipoint Router(config-subif)#

3-8

After creating the subinterface, you can create PVCs that go to the same network. Figure 3-1 shows a multipoint subinterface on a fully meshed network. Fully meshed indicates that any workstation can communicate with any other workstation.

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Chapter 3 1-Port OC-12 ATM Line Card Configuration

Router A

Cisco 10000 ESR

46927

Router B

Router C

ATM

131.108.168.0

131.108.168.1

131.108.171.0

131.108.168.2

int atm 2/0/0.1

int atm 5/0/0.1

int atm 4/0/0.2

131.108.168.3

131.108.169.0

131.108.169.2

131.108.170.3

131.108.170.0

Figure 3-1 Multipoint ATM Configuration

Table 3-6 provides the configuration commands used to configure the multipoint connections in the

network shown in Figure 3-1.

Ta b l e 3-6 Multipoint Configuration Example

Router A Router B Router C

interface atm 4/0/0.2 multi ip address 131.108.168.1

255.255.255.0 pvc 0/35 protocol ip 131.108.168.2 broadcast pvc 0/36 protocol ip 131.108.168.3 broadcast

interface atm 2/0/0.1 multi ip address 131.108.168.2

255.255.255.0 pvc 0/35 protocol ip 131.108.168.1 broadcast pvc 0/37 protocol ip 131.108.168.3 broadcast

Commands

interface atm 5/0/0.1 multi ip address 131.108.168.3

255.255.255.0 pvc 0/36 protocol ip 131.108.168.1 broadcast pvc 0/37 protocol ip 131.108.168.2 broadcast

Attaching an ATM VC Class to an Interface

To attach an ATM VC class to an interface, use the class-int command. If you customize a PVC, its customization takes precedence over the interface class.

class-int class_name

Where class_name is the name of the class created using the global configuration class-vc atm command.

In the following example, a VC class named cambridge is created and attached to subinterface 3/0/0.1.

Creating ATM PVPs

To create a permanent virtual path (PVP) used to multiplex one or more VBR-NRT VCs, use the atm pvp interface configuration command.

atm pvp vpi peak-rate [no-f4-oam] no atm pvp vpi

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Commands

Chapter 3 1-Port OC-12 ATM Line Card Configuration

Where:

• vpi is the ATM network virtual path identifier (VPI) of the VC used to multiplex the permanent

virtual path. The range is 0 to 255. You must use a VPI value that is not already in use (by a VC).

• peak-rate is the maximum rate in Kbps at which the PVP can transmit data. You can enter values

from 84 Kbps to 299,520 Kbps and you can also enter 599,040 Kbps. The PVP peak rate value supersedes all cell rate values set for VBR-NRT PVCs.

• no-f4-oam (optional) restricts the PVP from passing operations/administration/maintenance (OAM)

packets. When you create a PVP, the system creates PVCs with VCI values of 3 and 4 for each PVP, which pass OAM packets.

To verify the configuration of a PVP, use the show atm vp EXEC command.

The following example shows how to create a PVP with a peak rate of 50000 Kbps. The subsequent VCs created are multiplexed onto this virtual path.

Creating a PVC

Note You can only create one PVC on a point-to-point interface. Multiple PVCs can be created on a multipoint

You can create a unspecified bit rate (UBR) PVC by entering the pvc command:

pvc [word] [vpi_value/]{vci_value} [ilmi]

Where:

• vpi_value is in the range from 0 to 255. If you do not specify a VPI value, the system assigns the

value of 0.

• vci_value is in the range from 1 to 65535. The VCI value should be at least 33, because all of the

lower-numbered PVCs are generally used for specific purposes.

• word is a name referring to this connection.

• the ilmi parameter maps the ILMI channel to the PVC for this interface. You can only use this

argument for PVCs created on the main interface. It is highly recommended that you use this argument with PVC 0/16. For more information about activating ILMI, see the section

“Activating

ATM ILMI PVC Discovery” section on page 3-11.

By default, the pvc command creates a UBR PVC; to create a VBR-NRT PVC, see the “Configuring

VBR-NRT” section on page 3-17.

interface.

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Chapter 3 1-Port OC-12 ATM Line Card Configuration

Examples:

• Create PVC 0/105 on the main interface.

Router(config)# interface atm 5/0/0 Router(config-if)# pvc 105 Router(config-if-atm-vc)

• Create PVC 2/102 on a subinterface.

Router(config)# interface atm 5/0/0.1 Router(config-subif)# pvc 2/102 Router(config-if-atm-vc)#

Enabling ATM ILMI

Use the atm ilmi-enable interface configuration command to enable the ILMI on a port.

atm ilmi-enable no atm ilmi-enable

The default is ILMI is enabled, but you should disable the ILMI if the peer does not support ILMI. In order for peers to exchange ILMI information, you must create PVC 0/16, using the ilmi argument.

Commands

The following example disables ILMI:

Router(config)# interface atm 5/0/0 Router(config-if)# no atm ilmi-enable

Activating ATM ILMI PVC Discovery

To activate ATM PVC discovery, use the atm ilmi-pvc-discovery interface configuration command. This command causes ILMI-compliant devices to propagate PVCs.

atm ilmi-pvc-discovery [subinterface] no atm ilmi-pvc-discovery [subinterface]

Where:

• subinterface instructs the software to associate all PVCs with existing subinterface numbers equal

to their VPI numbers. For example: PVC 2/102 would be listed under subinterface 7/0/0.2, PVC 12/156 would be listed under 7/0/0.12, and so on.

Note The subinterface argument associates PVCs only with subinterfaces that have already been

created. If there is no subinterface for a VPI value, the system associates the PVC with the main interface.

The following example shows how to enable PVC Discovery on the ATM main interface 7/0/0 on an 1-Port OC-12 ATM line card that has ILMI enabled.

Router(config)# interface atm 7/0/0 Router(config-if)# pvc 0/16 ilmi Router(config-if-atm-vc)# exit Router(config-if)# atm ilmi-pvc-discovery

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Commands

Specifying the ATM ILMI Keepalive Rate

To specify the ILMI keepalive rate, enter the atm ilmi-keepalive command.

atm ilmi-keepalive [seconds [retry counts]]

Where:

• seconds is a value from 1 to 65535

• retry counts is a value from 2 to 5

The default value for seconds is 5000 and for retry counts is 4.

The following example shows how to enable ILMI keepalives for the ATM interface 5/0/0:

Router(config)# interface atm 5/0/0 Router(config-if)# atm ilmi-keepalive 10000 retry 3

Configuring ATM Clock

To configure the clock source as internal, use the atm clock internal command:

atm clock internal no atm clock internal

Chapter 3 1-Port OC-12 ATM Line Card Configuration

The default clock setting is no atm clock internal, which means that clocking is derived from the line.

In the following example, clocking is set from the router.

Router(config)# interface atm 5/0/0 Router(config-if)# atm clock internal

Specifying the ATM Flag

To specify the ATM flag value for the s1s0 bit, use the atm flag s1s0 command. This command is typically used to meet a standards requirement or to ensure interoperability with another vendor's equipment.

atm flag s1s0 value

Where:

• s1s0 is part of the payload pointer byte

• value is from 0 to 3

The default s1s0 value is 0.

The following example assigns a value of 2 to the ATM flag:

Router(config)# interface atm 5/0/0 Router(config-if)# atm flag s1s0 2

Controlling ATM Alarm Reporting

3-12

To control selected SONET alarms so that they are logged to the console for an ATM interface, use the atm report interface configuration command.

atm report {b1-tca | b2-tca | b3-tca | lais | lcd | lrdi | pais | plop | prdi | rdool | sd-ber | sf-ber | slof | slos}

no atm report {b1-tca | b2-tca | b3-tca | lais | lcd | lrdi | pais | plop | prdi | rdool | sd-ber | sf-ber | slof | slos}

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Chapter 3 1-Port OC-12 ATM Line Card Configuration

Where:

• b1-tca—B1 bit error rate (BEF) threshold crossing alarm

• b2-tca—B2 BER threshold crossing alarm

• b3-tca—B3 BER threshold crossing alarm

• lais—Line Alarm Indication Signal

• lcd—Loss of cell delineation

• lrdi—Line Remote Defect Indication

• pais—Path Alarm Indication Signal

• plop—Path Loss of Pointer

• prdi—Path Remote Defect Indication

• rdool—Receive Data Out Of Lock

• sd-ber—Line bit interleave parity error (LBIP) BER in excess of signal degrade (SD) threshold

• sf-ber—LBIP BER in excess of signal fail (SF) threshold

• slof—Section Loss of Frame

• slos—Section Loss of Signal

Commands

To disable logging of select SONET alarms, use the no form of this command.

The following example shows how to enable reporting of SD-BER and LAIS alarms on the interface:

Router(config)# interface atm 3/0/0 Router(config-if)# atm report sd-ber Router(config-if)# atm report lais Router(config-if)# end Router#

Specifying the ATM Alarm Thresholds

Specify the bit error rate (BER) threshold by using the atm threshold command:

atm threshold {b1-tca | b2-tca | b3-tca | sd-ber | sf-ber} value

Where:

• b1-tca—B1 BER threshold crossing alarm

• b2-tca—B2 BER threshold crossing alarm

• b3-tca—B3 BER threshold crossing alarm

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• sd-ber—Set Signal Degrade BER threshold

• sf-ber—Set Signal Fail BER threshold

• value is an exponential value from 10

–3

to 10

–9

representing the BER at which an alarm occurs.

The default for all thresholds, except sf-ber, is 10-6. The default for sf-ber is 10-3.

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Commands

The following example shows how to specify the B1 BER threshold crossing alarm value of 4:

Router(config)# interface atm 5/0/0 Router(config-if)# atm threshold b1-tca 4

Controlling the S1 SONET Overhead Byte

Controlling a Transmitted S1 Overhead Byte

In Cisco IOS Release 12.2(28)SB, use the pos flag s1-byte tx command in interface configuration mode to control the transmission of the S1 SONET overhead byte.

pos flag s1-byte tx value

Where:

• value is in the range of 0x0 to 0xF

• 0x0 is the default value

In the following example the S1 SONET overhead byte is set to 0xF:

pos flag s1-byte tx 0xF

Chapter 3 1-Port OC-12 ATM Line Card Configuration

Reacting to a Received S1 Overhead Byte

The S1 overhead byte is ignored by the receiving router unless the pos flag s1-byte rx-communicate command is issued.

pos flag s1-byte rx-communicate

no pos flag s1-byte rx-communicate

The following example directs the router to switch to internal clocking when it receives an S1 SONET overhead byte with a value of 0xF:

pos flag s1-byte rx-communicate

The default for the pos flag s1-byte rx-communicate command is disabled or off.

Running Loopbacks

You can run a loopback by using the loopback command:

loopback {line | diagnostic {parallel | path | serial}} no loopback {line | diagnostic {parallel | path | serial}}

Where:

• line is the line loopback

3-14

• diagnostic starts an internal diagnostic loopback

• parallel is the internal diagnostic parallel loopback

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Chapter 3 1-Port OC-12 ATM Line Card Configuration

• path is the internal diagnostic path loopback

• serial is the internal diagnostic serial loopback

The following example shows hot to run the diagnostic serial loopback:

Router(config)# interface atm 5/0/0 Router(config-if)# loopback diagnostic serial

ATM PVC Commands

After you create a PVC using the pvc command, you can customize the PVC or a VC class by using the commands described in this section.

• Specifying a Protocol, page 3-15

• Configuring a Broadcast, page 3-16

• Configuring Inverse ARP, page 3-16

• Attaching an ATM VC Class to a PVC, page 3-17

• Configuring VBR-NRT, page 3-17

• Specifying Encapsulation, page 3-18

Commands

• Enabling ILMI Management, page 3-18

• Configuring OAM Retry, page 3-18

• Enabling OAM Loopback Cell Generation and Management, page 3-19

Specifying a Protocol

Use the protocol ip command in interface-ATM-VC configuration mode or VC-class configuration mode to do one or both of the following:

• Configure a static map for an ATM PVC or VC class.

• Enable Inverse ARP or Inverse ARP broadcasts on an ATM PVC by either configuring Inverse ARP

protocol ip {protocol-address | inarp} [[no] broadcast] no protocol ip {protocol-address | inarp} [[no] broadcast]

Where:

• protocol-address is the peer destination address that is being mapped to a PVC.

• inarp (valid only for IP protocols on PVCs) enables Inverse ARP on an ATM PVC. If you specify

• [no] broadcast (optional) indicates that this PVC sends out broadcast packets (for example, IGRP

directly on the PVC or in a VC class (applies to IP

protocols only).

a protocol-address instead of inarp, Inverse ARP is automatically disabled for that protocol.

updates). Pseudo broadcasting is supported. The broadcast keyword of the protocol ip command takes precedence if you previously configured the broadcast command on the ATM PVC.

For PVCs created under point-to-point subinterfaces, broadcast is enabled by default. For PVCs created under multipoint subinterfaces, you should use the broadcast argument if you want to propagate IP routes.

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Use the no form of this command to remove a static map or disable Inverse ARP.

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Commands

Note Use the inarp command to configure Inverse ARP frequency.

The following example shows how to specify IP protocol on an ATM PVC:

Router(config)# interface atm 5/0/0 Router(config-if)# pvc 0/105 Router(config-if-atm-vc)# protocol ip 172.16.32.49

Configuring a Broadcast

To configure broadcast packet duplication and transmission for an ATM PVC or VC class, use the broadcast command.

Chapter 3 1-Port OC-12 ATM Line Card Configuration

Note The broadcast argument within the protocol ip command takes precedence over the broadcast

command. See the protocol ip command.

Use the default form of this command to restore the default behavior described below.

broadcast no broadcast

The default is broadcast. Use the no form of this command to disable transmission of broadcast packets.

The following example shows how to use the broadcast command to restore the default behavior:

Router(config)# interface atm 5/0/0.4 Router(config-subif)# pvc 0/105 Router(config-if-atm-vc)# broadcast Router(config-if-atm-vc)#

Configuring Inverse ARP

To configure the Inverse ARP time period for an ATM PVC or VC class, use the inarp command in interface-ATM-VC configuration mode or VC-class configuration mode.

inarp minutes no inarp minutes

“Specifying a Protocol” section on page 3-15 for additional information about the

3-16

Where minutes is the Inverse ARP frequency from 1 to 60 minutes.

The default frequency is 15 minutes.

Use the no form of this command to restore the default Inverse ARP time period behavior.

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Chapter 3 1-Port OC-12 ATM Line Card Configuration

Note This command is supported only for AAL5+SNAP encapsulation (the default) when Inverse ARP is

enabled. Use the encapsulation command to configure AAL5+SNAP encapsulation and the protocol command to enable Inverse ARP.

The following example shows how to specify an Inverse ARP frequency of 40 minutes on an ATM PVC:

Router(config)# interface atm 5/0/0 Router(config-if)# pvc 0/105 Router(config-if-atm-vc)# inarp 40

Attaching an ATM VC Class to a PVC

To attach an ATM VC class to a PVC, use the class-vc command.

class-vc name

Where:

• name is the name of the class created with the global configuration class-vc atm command.

The following example shows how to assign an ATM VC class named boston to an ATM PVC:

Router(config)# interface atm 5/0/0.4 Router(config-subif)# pvc 2/100 Router(config-if-atm-vc)# class-vc boston

Commands

Configuring VBR-NRT

To configure the variable bit rate-nonreal time (VBR-NRT) traffic management type and specify output peak cell rate, output sustainable cell rate, and output maximum burst cell size for an ATM PVC or VC class, use the vbr-nrt command. Use vbr-nrt in interface-ATM-VC configuration mode or VC-class configuration mode.

vbr-nrt peak_cell_rate sustainable_cell_rate maximum_burst_size no vbr-nrt peak_cell_rate sustainable_cell_rate maximum_burst_size

Where:

• peak is the peak cell rate (PCR) from 84 Kbps to 299,520 Kbps and 599,040 Kbps.The PCR must

• sustainable is the sustainable cell rate (SCR) from 84 Kbps to 299,520 Kbps and 599,040 Kbps.

• maximum is a number from 1 to 256 that represents Maximum Burst Size (MBS) in cells

The default class of service is unspecified bit rate (UBR) running at the maximum line rate of the physical interface.

Use the no form of this command to remove the VBR-NRT parameters and return the PVC to its default of unspecified bit rate (UBR).

You can create up to 254 VBR-NRT PVCs on an 1-Port OC-12 ATM line card.

The following example shows how to configure the VBR-NRT traffic parameters on an ATM PVC:

Router(config)# interface atm 5/0/0 Router(config-if)# pvc 0/105 Router(config-if-atm-vc)# vbr-nrt 50000 20000 200

be at least equal to the sustainable cell rate (SCR)

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Commands

Specifying Encapsulation

To specify the ATM adaptation layer (AAL) and encapsulation type for an ATM PVC or VC class, use the encapsulation command in interface-ATM-VC mode.

encapsulation {aal5mux ip | aal5snap} no encapsulation {aal5mux ip | aal5snap}

Where:

• aal5mux ip is AAL5+MUX encapsulation

• aal5snap is AAL5+LLC/SNAP encapsulation (the default)

Use the no form of this command to remove an encapsulation from a PVC or VC class.

The following example shows how to specify aal5mux ip encapsulation for an ATM PVC:

Router(config)# interface atm 5/0/0.4 Router(config-subif)# pvc 0/105 Router(config-if-atm-vc)# encaps aal5mux ip

Enabling ILMI Management

Chapter 3 1-Port OC-12 ATM Line Card Configuration

configuration mode or VC-class configuration

To enable ILMI management on an ATM PVC, use the ilmi manage command in interface-ATM-VC configuration mode or VC-class configuration mode. This command changes the convergence of higher-level protocols based on link-state changes.

ilmi manage no ilmi manage

Use the no form of this command to disable ILMI management.

The following example shows how to enable ILMI management on an ATM PVC:

Router(config)# interface atm 5/0/0 Router(config-if)# pvc 0/105 Router(config-if-atm-vc)# ilmi manage

Configuring OAM Retry

To configure OAM retry, use the oam retry command in interface-ATM-VC configuration mode or VC-class configuration mode.

oam retry up_value [down_value frequency] no oam retry up_value [down_value frequency]

Where:

• up_value is a number from 1 to 600 that represents the OAM retry count before declaring a VC is up.

Default is 3 retries.

• down_value is a number from 1 to 600 that represents the OAM retry count before declaring a VC

is down.

Default is 5 retries.

3-18

• frequency is a number from 1 to 1000 that represents the OAM retry polling frequency, in seconds.

Default is 1 second.

Use the no form of the command to remove oam retry parameters.

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Chapter 3 1-Port OC-12 ATM Line Card Configuration

The following example shows how to configure OAM retry to an ATM PVC:

Router(config)# interface atm 5/0/0 Router(config-if)# pvc 0/105 Router(config-if-atm-vc)# oam retry 10 10 5

Enabling OAM Loopback Cell Generation and Management

To enable end-to-end F5 OAM loopback cell generation and OAM management for an ATM PVC or VC class, use the oam-pvc command in interface-ATM-VC mode.

oam-pvc [manage] [frequency] no oam-pvc [manage] [frequency]

Where:

• manage is an optional keyword that brings down the line if the PVC loopback fails.

• frequency (optional) is the number of seconds between transmitting OAM loopback cells. Values

range from 0 to 600 seconds.

The default value is 10 seconds.

Use the no form of this command to disable generation of OAM loopback cells and OAM management.

Commands

configuration mode or VC-class configuration

The following example enables OAM loopback cell and OAM management to an ATM PVC:

Router(config)# interface atm 5/0/0 Router(config-if)# pvc 0/105 Router(config-if-atm-vc)# oam-pvc 300

Useful show Commands

show atm vc

Use the show atm vc command to display information about the VCs on the interface.

Router# show atm vc VCD / Peak Avg/Min Burst Interface Name VPI VCI Type Encaps Kbps Kbps Cells Sts 2/0/0 1 0 16 PVC ILMI 599040 UP 2/0/0 9 0 100 PVC MUX 599040 UP 2/0/0.2 7 2 32 PVC SNAP 599040 UP 2/0/0 8 2 33 PVC SNAP 599040 UP 2/0/0 18 2 100 PVC SNAP 599040 UP 2/0/0.2 6 4 24 PVC SNAP 599040 UP 2/0/0 2 25 3 PVC F4-OAM 50000 UP 2/0/0 3 25 4 PVC F4-OAM 50000 UP 2/0/0 14 25 100 PVC SNAP 50000 50000 0 UP 2/0/0 16 25 101 PVC SNAP 50000 50000 0 UP 2/0/0 17 25 102 PVC SNAP 50000 50000 0 UP 2/0/0 10 26 3 PVC F4-OAM 50000 UP 2/0/0 11 26 4 PVC F4-OAM 50000 UP 2/0/0 12 27 3 PVC F4-OAM 50000 UP 2/0/0 13 27 4 PVC F4-OAM 50000 UP 2/0/0 19 33 100 PVC SNAP 10000 8000 10 UP Router#

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show atm vp

Use the show atm vp command to display information about the VPs on the interface.

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Commands

Chapter 3 1-Port OC-12 ATM Line Card Configuration

Router# show atm vp Data CES Peak CES Interface VPI VCs VCs Kbps Kbps Status ATM2/0/0 25 3 0 50000 0 ACTIVE ATM2/0/0 26 0 0 50000 0 ACTIVE ATM2/0/0 27 0 0 50000 0 ACTIVE Router#

show atm pvc

Use the show atm pvc vpi_number/vci_number command to display detailed information about a specific PVC.

Router# show atm pvc 0/100

ATM2/0/0: VCD: 9, VPI: 0, VCI: 100 UBR, PeakRate: 599040 AAL5-MUX, etype:0x800, Flags: 0xC23, VCmode: 0x0 OAM frequency: 0 second(s), OAM retry frequency: 1 second(s) OAM up retry count: 3, OAM down retry count: 5 OAM Loopback status: OAM Disabled OAM VC state: Not Managed ILMI VC state: Not Managed InARP DISABLED InPkts: 0, OutPkts: 0, InBytes: 0, OutBytes: 0 InPRoc: 0, OutPRoc: 0, Broadcasts: 0 InFast: 0, OutFast: 0, InAS: 0, OutAS: 0 InPktDrops: 0, OutPktDrops: 0 Out CLP=1 Pkts: 0 OAM cells received: 0 F5 InEndloop: 0, F5 InSegloop: 0, F5 InAIS: 0, F5 InRDI: 0 OAM cells sent: 0 F5 OutEndloop: 0, F5 OutSegloop: 0, F5 OutRDI: 0 OAM cell drops: 0 PVC Discovery: NOT_VERIFIED Status: UP Router#

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ART

Channelized Line Cards

CHAP TER

4-Port Channelized T3 Half-Height Line Card Configuration

This chapter describes the Cisco 10000 series 4-Port Channelized T3 Half-Height line card, hereafter known as the 4-Port Channelized T3 Half-Height line card.

The 4-Port Channelized T3 Half-Height line card provides the Cisco 10000 router with four DS3 ports of high-density T3 service (eight T3 ports per slot).

This chapter contains the following sections:

• Software Support, page 4-1

• Feature Overview, page 4-2

• Default Values, page 4-3

• Interface Syntax, page 4-4

• Interface Configuration Sample, page 4-4

• Unchannelized T3 Commands, page 4-6

• Channelized T3 Commands, page 4-12

• Channel-Group Command for DS0 Time Slots and T1s, page 4-17

• Channelized T1 Commands, page 4-19

• High Availability Using Line Card Redundancy, page 4-24

• Command Reference, page 4-31

Software Support

Table 4-1 shows the minimum Cisco IOS release on each release train that supports the 4-Port

OC-3/STM-1 ATM line card.

Ta b l e 4-1 4-Port OC-3/STM-1 ATM Line Card Software Support

Required PRE Minimum Cisco IOS Releases

PRE2 Cisco IOS Release 12.2(28)SB and later releases of Cisco IOS 12.2SB

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Chapter 4 4-Port Channelized T3 Half-Height Line Card Configuration

Feature Overview

Checking Hardware and Software Compatibility

The PRE installed in the Cisco 10000 series router chassis must support the Cisco IOS software running on the router. Use the show version command to check the PRE version installed.

http://www.cisco.com/cgi-bin/Support/CompNav/Index.pl

This tool does not verify whether line cards within a system are compatible, but does provide the minimum Cisco IOS requirements for individual hardware line cards, modules, or options.

You must be a registered user on Cisco.com to access this tool.

Feature Overview

The 4-Port Channelized T3 Half-Height line card is very similar in function to the 6-Port Channelized T3 line card. The differences are summarized in the following features list for the 4-Port Channelized T3 Half-Height line card:

• Provides the Cisco 10000 series router with four DS3 ports of high-density T3 service (eight T3

ports per slot)

• Supports full line rate transfers of packet sizes from 64 bytes to 8000 bytes

• Supports 256 serial data channels for the first three ports, and 255 serial data channels for the last

port, or 1023 channels per half-height module

• The 256 (255) serial data channels per port are configurable up to:

–

1 DS3 interface

–

28 DS1 interfaces

–

256 (255) N x DS0 interfaces

–

Or any combination of these interfaces that does not exceed the bandwidth of the port

Note Port 3 supports only 255 channels.

• Provides high availability when two 4-Port Channelized T3 Half-Height line cards are installed and

interconnected with a Y-cable in a redundant configuration

• Supports six T1 BER tests simultaneously for each set of two ports

• Adds new BER test patterns (3in24, 1in8, and 2in8) and the show bert command to display BER

test statistics

• Adds remote loopback inband looping codes (2in5 and 3in5) for T1 SF and ESF framing

Note For information on installing half-height line cards in subslots, refer to the Cisco 10000 Series Routers

Line Card Hardware Installation Guide.

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Chapter 4 4-Port Channelized T3 Half-Height Line Card Configuration

Default Values

Table 4-2 lists default values for the 4-Port Channelized T3 Half-Height line card and indicates which

values apply to which line speeds. The table includes the command used for modifying a default value and indicates whether a value needs to be the same (or opposite) on the remote end of the connection.

Ta b l e 4-2 4-Port Channelized T3 Half-Height Line Card Default Values

Default Values

Default

Command Name

Controller Configuration Mode

Setting

cable length 249

channelized channelized

clock source internal

T1 clock source internal

framing auto-detect

T1 framing esf

idle pattern 0x7e (flags)

Interface Configuration Mode

crc (cyclical

redundancy check)

dsu bandwidth 44,210

dsu mode cisco

encapsulation HDLC

framing c-bit

idle character flags (0x7e)

keepalive keepalive

(10 sec)

mtu (maximum

1500

transmission unit)

scramble No

scrambling

Command Syntax

cablelength feet

[no] channelized

clock source [line | internal]

t1 t1-number clock source [line | internal]

framing [c-bit | m23 | auto-detect]

t1 t1-number framing [esf | sf [hdlc-idle {0x7e | 0xff}]]

idle pattern [0x0 to 0xff]

[no] crc [16 | 32]

dsu bandwidth bandwidth

dsu mode mode

encapsulation [hdlc | ppp | frame-relay]

framing [c-bit | m13]

idle character [flags | marks]

keepalive

mtu size

[no] scramble

Remote Side Setting

DS 0 T1 Ch T3

— x x

At least one

x x

side set to

internal

At least one

side set to

internal

Same x

Same x x

Same x x x

Same x

Same x x x

Same x

Same x x x

Same x

Unch T3

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4-3

Interface Syntax

To specify an interface number in a configuration command, use the syntax in Tab le 4-3 to identify interfaces on the 4-Port Channelized T3 Half-Height line card.

Ta b l e 4-3 4-Port Channelized T3 Half-Height line card Interface Syntax

Type of Interface Slot Subslot

Unchannelized 1 to 8/ 0 or 1/ 0 to 3 — —

Channelized 1 to 8/ 0 or 1/ 0 to 3/ 1 to 28 0 to 23

Examples:

• Modifying T1 interface 6 in controller configuration mode:

Router(config)# controller t3 2/0/0 Router(config-controller)# t1 6

Chapter 4 4-Port Channelized T3 Half-Height Line Card Configuration

Channel Port (T3 Number)

T1 Number

Group

Number

• Modifying T1 interface 6, channel group number 8 in interface configuration mode:

Router(config)# interface serial 2/0/0/6:8 Router(config-if)#

Interface Configuration Sample

Each T3 controller can be configured as a single T3 interface (full or subrate), as 28 T1 interfaces, or as an even larger number of fractional T1s. The following procedure walks you through the basic steps for creating full-rate and subrate T3

Step 1 Create an interface. In the following examples, each type of interface is created in a different T3

controller (2/0/0 through 2/0/3).

Full-Rate T3 Interface

a. Enter controller configuration mode.

Router(config)# controller t3 2/0/0 Router(config-controller)#

b. To create a full-rate T3 interface, you must eliminate the T1 interfaces by entering the no

channelized command.

Router(config-controller)# no channelized Router(config-controller)# exit Router(config)#

interfaces, as well as T1 and fractional T1 interfaces:

4-4

c. Go to interface configuration mode:

Router(config)# interface serial 2/0/0

d. You can now continue to Step 2.

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Chapter 4 4-Port Channelized T3 Half-Height Line Card Configuration

Subrate T3 Interface

a. Enter controller configuration mode.

Router(config)# controller t3 2/0/1 Router(config-controller)#

b. To create a subrate T3 interface, first create a full-rate one.

Router(config-controller)# no channelized Router(config-controller)# exit Router(config)#

c. Then go into interface configuration mode, where you can use the dsu bandwidth command to

create a subrate T3 interface. In this example, a subrate T3 interface is created that has a bandwidth of 16,000 kbps.

Router(config)# interface serial 2/0/1 Router(config-if)# dsu mode digital-link Router(config-if)# dsu bandwidth 16000

d. You can now continue to Step 2.

Full T1 Interface

a. Enter controller configuration mode.

Router(config)# controller t3 2/0/2 Router(config-controller)#

Interface Configuration Sample

b. Use the t1 channel group command to create a T1 interface. In the following example, T1 interface

1 (of 28) is defined as being made up of a single channel group, number 20 (any number between 0 and 23). This channel group consists of all 24 DS0 time slots.

Router(config-controller)# t1 1 channel-group 20 timeslots 1-24

c. Go to interface configuration mode for the channel group you just created.

Router(config)# interface serial 2/0/2/1:20

d. You can now continue to Step 2.

Fractional T1 Interface

a. Enter controller configuration mode.

Router(config)# controller t3 2/0/3 Router(config-controller)#

b. Use the t1 channel group command to create fractional T1 interfaces. In the following example, T1

interface 3 (of 28) is defined as being made up of three channel groups, numbers 19, 20, and 21. (Numbers between 0 and 23 are allowed.) The channel groups consist of a total of 24 DS0 time slots. Each channel group represents a separate interface.

Router(config-controller) t1 3 channel-group 19 timeslots 1-6, 10 Router(config-controller) t1 3 channel-group 20 timeslots 7,8,9 Router(config-controller) t1 3 channel-group 21 timeslots 11-24

c. Go to interface configuration mode for one of the channel groups; for example:

Router(config)# interface serial 2/0/3/3:19

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d. You can now continue to Step 2.

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4-5

Unchannelized T3 Commands

Step 2 Enter the encapsulation method. This example shows the command for using Frame Relay

encapsulation. You can also choose PPP or HDLC.

Router(config-if)# encapsulation frame relay

Step 3 If IP routing is enabled on the system, assign an IP address and subnet mask; for example:

Router(config-if)# ip address 172.16.32.49 255.255.0.0

Step 4 Add any configuration subcommands required to enable routing protocols and set the interface line

characteristics.

Step 5 Change the shutdown state to up, which enables the interface.

Router(config-if)# no shutdown

Step 6 When you have entered all of the configuration subcommands to complete the configuration, press Ctrl-Z

to exit configuration mode.

Step 7 To write the new configuration to NVRAM, type

Router# copy running-config startup-config

Chapter 4 4-Port Channelized T3 Half-Height Line Card Configuration

After you create an interface configuration, you can modify it at any time by using the appropriate Cisco IOS configuration commands.

Unchannelized T3 Commands

By default, a T3 interface on a 4-Port Channelized T3 Half-Height line card is channelized into 28 T1 interfaces. You must unchannelize the T3 interface in order to create a full-rate or subrate T3 This section describes the commands you use to create, customize, and test full-rate and subrate T3 interfaces. This section describes the following:

• Configuring a T3 Interface as Unchannelized, page 4-7

• Specifying the DSU Mode, page 4-7

• Specifying Subrate T3 Bandwidth, page 4-7

• Setting the Framing Type, page 4-8

• Enabling Scrambling, page 4-8

• Specifying an Idle Character, page 4-8

• Configuring a BER Test, page 4-9

• Specifying the Cable Length, page 4-10

• Entering MDL Messages, page 4-10

• Setting the Clock Source, page 4-11

• Configuring Loopback Mode, page 4-12

interface.

4-6

• Running Equipment Loopbacks, page 4-12

Note Configuring a T3 interface as unchannelized must occur in controller configuration mode. All other

configuration of an unchannelized T3 interface must occur in interface configuration mode.

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Chapter 4 4-Port Channelized T3 Half-Height Line Card Configuration

Configuring a T3 Interface as Unchannelized

The default value for a T3 interface is channelized. To create an unchannelized T3 interface, you must first enter controller configuration mode for the T3 controller you want to configure.

controller T3 slot/sub-slot/port

After entering controller configuration mode, you can configure the T3 interface as unchannelized (clear channel) by entering the no channelized command. Use the channelized command to return the interface to its default (channelized).

[no] channelized

Caution The no channelized command removes all channel groups from a channelized T3 interface. If you have

already configured channel groups, use this command with caution.

In the following example, an unchannelized T3 interface is created:

Router(config)# controller T3 1/0/0 Router(config-controller)# no channelized

Unchannelized T3 Commands

Specifying the DSU Mode

To specify a DSU mode for a selected T3 interface, use the dsu mode command from interface configuration mode. This command configures the line card to emulate a manufacturer’s proprietary multiplexing scheme.

]

The default DSU mode is cisco.

Use the no form of the command to return the DSU mode to its default.

In the following example, the DSU mode is set to cisco:

Router(config)# interface serial 1/0/0 Router(config-if)# dsu mode cisco

Specifying Subrate T3 Bandwidth

To specify subrate T3 bandwidth, use the dsu bandwidth bandwidth command from interface configuration mode.

[no] dsu bandwidth bandwidth

Where bandwidth is a numeric value between 0 and 44210 kbps.

The default bandwidth is 44210 kbps.

To return to the default bandwidth, use the no form of this command.

When you specify a value, the software sets the bandwidth to the closest acceptable bandwidth, based on the time slot size for the current DSU mode.

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To use the dsu bandwidth command, the remote side of the connection must also support the same DSU modes.

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4-7

Unchannelized T3 Commands

In the following example, a bandwidth of 16000 kbps is specified:

Router(config)# interface serial 1/0/0 Router(config-if)# dsu bandwidth 16000

Setting the Framing Type

To specify a framing type for the unchannelized T3 controller, use the framing command.

[no] framing [c-bit | m13]

The default framing type is C-bit.

Use the no form of this command to restore the default framing type.

In the following example, framing is set to m13:

Router(config)# interface serial 1/0/0 Router(config-if)# framing m13

Chapter 4 4-Port Channelized T3 Half-Height Line Card Configuration

Enabling Scrambling

To enable scrambling on an unchannelized T3 interface, use the scramble command from interface configuration mode.

[no] scramble

The default setting for this command is no scramble (scrambling disabled).

Both sides of the link should have the same scrambling setting.

In the following example, scrambling is enabled on the specified T3 interface:

Router(config)# interface serial 1/0/0 Router(config-if)# scramble

Specifying an Idle Character

To set a specific character on the unchannelized T3 interface to be transmitted between HDLC packets, use the idle character command from interface configuration mode.

[no] idle-character [flags | marks]

Where:

• flags sets an idle character of 0x7e.

• marks sets an idle character of all 0xff.

The default idle character is 0x7e.

4-8

Note Because flags is the default, the output of the show running-config command does not display the flags

idle character setting.

Use the no form of the command to return the idle character to its default.

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Chapter 4 4-Port Channelized T3 Half-Height Line Card Configuration

In the following example, the idle character is set to flags:

Router(config)# interface serial 1/0/0 Router(config-if)# idle-character flags

Note Some systems interpret marks (or 0xff) as an abort signal. Therefore, flags (or 0x7e) is preferred.

Configuring a BER Test

You can configure an unchannelized T3 interface to run a bit error rate (BER) test. The test can be used in checking cables and solving signal problems in the field. To send a BER test pattern on an unchannelized T3 interface, use the following interface configuration command:

[no] bert [errors number | pattern pattern] interval time

Where:

• errors number is 1 to 255.

• pattern pattern is

–

0s—Repetitive test pattern of all zeros (00000…)

–

1s—Repetitive test pattern of all ones (11111…)

Unchannelized T3 Commands

–

2^15—Pseudorandom O.151 test pattern (32,768 bits long)

–

2^20-O153—Pseudorandom O.153 test pattern (1,048,575 bits long)

–

QRSS-2^20—Pseudorandom QRSS O.151 test pattern (1,048,575 bits long)

–

2^23—Pseudorandom O.151 test pattern (8,388,607 bits long)

–

alt-0-1—Repetitive alternating test pattern of zeros (0s) and ones (1s), for example 01010101

• interval time is 1 to 1440 minutes.

You can terminate a BER test at any time using the no bert command.

For more information, refer to the online Cisco 10000 Series Internet Router Troubleshooting Guide.

The following are example of configuring a BER test:

• Send a BER test pseudorandom pattern of 2^20 through T3 interface 1/0/0 for 5 minutes.

Router(config)# interface serial 1/0/0 Router(config-if)# bert pattern 2^20 interval 5

• Send a repetitive pattern of all 1s through T3 interface 1/0/0 for 1440 minutes.

Router(config)# interface serial 1/0/0 Router(config-if)# bert pattern 1s interval 1440

To show BER test statistics, use the show controllers t3 slot/subslot/port bert command in EXEC or privileged EXEC mode:

Router# show controllers t3 6/1/0 bert T3 6/1/0 is up. BERT test result (done) Test Pattern : 2^15, Status : Not Sync, Sync Detected : 1 Interval : 5 minute(s), Time Remain : 0 minute(s) Bit Errors (since BERT started): 0 bits, Bits Received (since BERT started): 13025 Mbits Bit Errors (since last sync): 0 bits Bits Received (since last sync): 13025 Mbits

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Unchannelized T3 Commands

Specifying the Cable Length

To specify the cable length for the T3 controller, use the cablelength command.

[no] cablelength feet

Where feet is a number from 0 to 450.

The default value is 249 feet.

Use the no form of this command to restore the default cable length.

In the following example, the cable length value is set to 40 feet.

Router(config)# interface serial 1/0/0 Router(config-if)# cablelength 40

Note This command causes the system to use one of two settings for impedance matching and pulse shaping,

one setting for any cable length between 0 and 249 feet and another setting for any cable length greater than 250 feet. The exact value you enter is stored in the configuration file.

Chapter 4 4-Port Channelized T3 Half-Height Line Card Configuration

Entering MDL Messages

You can configure maintenance data link (MDL) messages (as defined in the ANSI T1.107a-1990 specification) on the unchannelized T3 interface.

Note MDL messages are supported only when the T3 framing is set for C-bit parity. (See the “Setting the

Framing Type” section on page 4-8.)

To configure MDL messages, use the mdl command.

[no] mdl {transmit {path | idle-signal | test-signal} | string {eic | lic | fic | unit | pfi | port

| generator} id_string}

Where:

• transmit path enables transmission of the MDL path message.

• transmit idle-signal enables transmission of the MDL idle signal message.

• eic is the equipment identification code (up to 10 characters).

• lic is the location identification code (up to 11 characters).

• fic is the frame identification code (up to 10 characters).

• unit is the unit identification code (up to 6 characters).

• pfi is the facility identification code to include in the MDL path message

(up to 38 characters).

• port is the equipment port (which initiates the idle signal) to include in the MDL idle signal message

(up to 38 characters).

4-10

• generator is the generator number to include in the MDL test signal message (up to 38 characters).

The default is that no MDL message is configured.

Use the no form of the command to remove an MDL message.

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Chapter 4 4-Port Channelized T3 Half-Height Line Card Configuration

Examples of configuring MDL messages follow:

• Enable the MDL path message transmission.

Router(config)# interface serial 1/0/0 Router(config-if)# mdl transmit path

• Enable the MDL idle signal message transmission.

Router(config-if)# mdl transmit idle-signal

• Enable the MDL test signal message transmission.

Router(config-if)# mdl transmit test-signal

• Enter the equipment identification code.

Router(config-if)# mdl string eic router A

• Enter the location identification code.

Router(config-if)# mdl string lic test network

• Enter the frame identification code.

Router(config-if)# mdl string fic building b

Unchannelized T3 Commands

• Enter the unit identification code.

Router(config-if)# mdl string unit abc

• Enter the facility identification code.

Router(config-if)# mdl string pfi string

• Enter the port number to send in the MDL idle signal message.

Router(config-if)# mdl string port string

• Enter the generator number to send in the MDL test signal message.

Router(config-if)# mdl string generator string

Setting the Clock Source

At the prompt, set the internal or line clock source for the selected T3 controller using the clock source command. This command is set in controller configuration mode.

clock source {internal | line}

Where:

• internal specifies that the internal clock source is used.

• line specifies that the network clock source is used.

The default is clock source internal.

In this example, a T3 controller is instructed to use a line clock source.

Router(config)# interface serial 1/0/0 Router(config-if)# clock source line

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Note The clock source cannot be specified as line on both ends of the connection.

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Channelized T3 Commands

Configuring Loopback Mode

You can configure the T3 controller for loopback mode using the loopback command.

[no] loopback [local | network | remote]

Local and network loopbacks are the same.

To cancel a loopback, use the no form of the command.

For more information on the loopback command, refer to the online Cisco 10000 Series Internet Router

Troubleshooting Guide.

Examples:

• Configure the T3 controller for local loopback.

Router(config)# interface serial 1/0/0 Router(config-if)# loopback local

• Configure the T3 controller for remote loopback.

Router(config)# interface serial 1/0/0 Router(config-if)# framing c-bit Router(config-if)# loopback remote

Chapter 4 4-Port Channelized T3 Half-Height Line Card Configuration

Note Remote loopback works only when framing is set to c-bit.

Running Equipment Loopbacks

Use the equipment loopback command to run loopbacks in conjunction with remote equipment.

[no] equipment [customer | network] loopback

Where:

• customer enables the line card to respond to remote T3 loopback commands from the remote T3

equipment.

• network causes the line card to ignore remote T3 loopback commands.

Use the no form of the command to terminate the loopback.

For more information on the loopback command, refer to the online Cisco 10000 Series Internet Router

Troubleshooting Guide.

In the following example, an equipment network loopback is configured:

Router(config)# interface serial 1/0/0 Router(config-if)# equipment network loopback

Channelized T3 Commands

4-12

By default, a T3 interface on a 4-Port Channelized T3 Half-Height line card is channelized into 28 T1 interfaces. This section describes the commands you use to customize and test a channelized T3 interface. This section describes:

• Configuring a T3 Interface as Channelized, page 4-13

• Specifying the Cable Length, page 4-14

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Cisco 10000 Series Configuration Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Cisco 10000 Series Router Line Card Configuration Guide

CONTENTS

About This Guide

Guide Revision History

Audience

Document Organization

Document Conventions

Related Documentation

Obtaining Documentation and Submitting a Service Request

4-Port OC-3/STM-1 ATM Line Card Configuration

Software Support

Default Values

Checking Hardware and Software Compatibility

Line Card VC Limitations

Interface Syntax

Interface Configuration Examples

Creating a Subinterface

Creating a PVC

Creating a VC Class

Applying a VC Class

Enabling ILMI PVC Discovery

ATM Commands

Completing a Configuration

Global Configuration Command

Interface and Subinterface Commands

Creating and Entering Subinterfaces

Attaching an ATM VC Class to an Interface

Creating ATM PVPs

Creating a PVC

Enabling ATM ILMI

Activating ATM ILMI PVC Discovery

Specifying the ATM ILMI Keepalive Rate

Configuring the ATM Clock

Specifying the ATM Flag

Controlling ATM Alarm Reporting

Specifying the ATM Alarm Thresholds

Controlling the S1 SONET Overhead Byte

Controlling a Transmitted S1 Overhead Byte

Reacting to a Received S1 Overhead Byte

Running Loopbacks

ATM PVC Commands

Specifying a Protocol

Configuring a Broadcast

Configuring Inverse ARP

Attaching an ATM VC Class to a PVC

Configuring VBR-NRT

Specifying Encapsulation

Enabling ILMI Management

Configuring OAM Retry

Enabling OAM Loopback Cell Generation and Management

Useful show Commands

8-Port E3/DS3 ATM Line Card Configuration

Software Support

Checking Hardware and Software Compatibility

Default Values

Line Card VC Limitations

Interface Syntax

Line Card Interface Configuration Examples

Creating a Subinterface

Creating a PVC

Creating an ATM VC Class

Applying a VC Class

Enabling ILMI PVC Discovery

Line Card Commands

Completing a Configuration

Global Configuration Commands

ATM Interface and Subinterface Commands

Setting the Line Card to E3 or T3 mode

Changing the Mode of the Line Card

Setting the Line Card Framing

Setting T3 ADM Framing

Setting T3 PLCP Framing

Setting E3 ADM Framing

Setting E3 PLCP Framing

Creating and Entering Subinterfaces

Attaching an ATM VC Class to an Interface or Subinterface