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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.