Cisco ATM and Layer 3 Switch Router OL-1911-05 User Manual

Page 17

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24-17

ATM and Layer 3 Switch Router Software Configuration Guide

OL-1911-05

Chapter 24

Configuring ATM Router Module Interfaces

Configuring Multiprotocol Encapsulation over ATM

Note

Traffic shaping and policing are not supported on the ATM router module interfaces; for traffic
shaping and policing on ATM connections, use VP tunnels. For more information on VP tunnels, see

Chapter 6, “Configuring Virtual Connections.”

To configure multiprotocol encapsulation over ATM on the ATM router module interface, use the
following commands, beginning in global configuration mode:

Example

The following example shows how to configure RFC 1483 on an ATM router module interface,
beginning in global configuration mode:

Switch(config)# interface atm 1/0/0.1011 multipoint

Switch(config-subif)# ip address 10.1.1.1 255.255.255.0

Switch(config-subif)# map-group net1011

Switch(config-subif)# atm pvc 2 1011 interface atm 3/0/0 0 1011 encap aal5snap

Switch(config-subif)# exit

Switch(config)# map-list net1011

Switch(config-map-list)# ip 10.1.1.2 atm-vc 1011

Switch(config-map-list)# end

Switch#

Command

Purpose

Step 1

Switch(config)# interface atm
card/subcard/port.subinterface# multipoint

Switch(config-subif)#

Creates the ATM router module
point-to-multipoint subinterface and enters
subinterface mode.

Note

The ATM router module only supports
point-to-multipoint subinterfaces.

Step 2

Switch(config-subif)# ip address ip-address mask Enters the IP address and subnet mask associated

with this interface.

Step 3

Switch(config-subif)# map-group name

Enters the map group name associated with this
PVC.

Step 4

Switch(config-subif)# atm pvc 2 vci-a [upc upc]
[pd pd] [rx-cttr index] [tx-cttr index] interface
atm
card/subcard/port[.vpt#] vpi-b vci-b
[upc upc] encap {aal5mux

1

| aal5snap}

1.

Only the Catalyst 8540 MSR enhanced ATM router module supports AAL5 MUX encapsulation.

Configures the PVC.

Note

The VPI number on the ATM router
module interface must be 2.

Step 5

Switch(config-subif)# exit

Switch(config)#

Returns to global configuration mode.

Step 6

Switch(config)# map-list name

Switch(config-map-list)#

Creates a map list by naming it, and enters
map-list configuration mode.

Step 7

Switch(config-map-list)# ip ip-address
{atm-nsap address | atm-vc vci} [broadcast]

Associates a protocol and address with a specific
virtual circuit.

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