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24-27
ATM and Layer 3 Switch Router Software Configuration Guide
OL-1911-05
Chapter 24 Configuring ATM Router Module Interfaces
Configuring IP Multicast
Configuring IP Multicast
To configure IP multicast over an RFC 1483 permanent virtual connection (PVC) on an ATM router
module, use the following commands, beginning in global configuration mode:
Example
Switch(config)# ip multicast-routing
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)# ip pim dense-mode
Switch(config-subif)# exit
Switch(config)# map-list net1011
Switch(config-map-list)# ip 10.1.1.2 atm-vc 1011 broadcast
Note For more information on IP multicast, refer to the Layer 3 Software Configuration Guide.
About Rate Limiting
Rate limiting is available on the Catalyst 8540 MSR, Catalyst 8510 MSR, Catalyst 8540 CSR, and
Catalyst 8510 CSR. This feature is similar to the IOS committed access rate (CAR) feature. You can
deploy rate limiting on your switch router to ensure that a packet, or data source, adheres to a stipulated
contract, and to determine the QoS for a packet.
Command Purpose
Step 1
Switch(config)# ip multicast-routing Enables IP multicast routing.
Step 2
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 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] interface atm card/subcard/port[.vpt#]
vpi-b vci-b [upc upc] encap aal5snap
Configures the PVC.
Note The VPI number on the ATM router module
interface must be 2.
Step 5
Switch(config-subif)# ip pim dense-mode Enables Protocol Independent Multicast dense mode
on the subinterface.
Step 6
Switch(config-subif)# exit
Switch(config)#
Returns to global configuration mode.
Step 7
Switch(config)# map-list name
Switch(config-map-list)#
Creates a map list by naming it, and enters map-list
configuration mode.
Step 8
Switch(config-map-list)# ip ip-address
{atm-nsap address | atm-vc vci} broadcast
Associates a protocol and address with a specific
virtual circuit.
Step 9
Switch(config-map-list)# end
Switch#
Returns to privileged EXEC mode.