Cisco Systems OL-1911-05 manual Configuring Packet Flooding on a PVC, Broadcast, 24-25

Chapter 24 Configuring ATM Router Module Interfaces

Configuring Bridging

Switch(config)# interface atm 3/0/0

Switch(config-if)#atm pvc 2 200 interface atm 1/0/0 0 200

Switch(config-if)# bridge-group 5

Switch(config-if)# end

Switch(config)# interface fastethernet 0/0/0

Switch(config-if)# no cdp enable

Switch(config-if)# bridge-group 5

Switch(config-if)# end

Switch(config)# bridge 5 protocol ieee

Configuring Packet Flooding on a PVC

Typically, a specific static map list configuration is not required for bridging to occur. In case of packet flooding, the bridging mechanism individually sends the packet to be flooded on all PVCs configured on the interface. To restrict the broadcast of the packets to only a subset of the configured PVCs you must define a separate static map list. Use the broadcast keyword in the static-mapcommand to restrict packet broadcasting.

	Command	Purpose
Step 1
	Switch(config)# interface atm card/subcard/port	Specifies the interface to configure on the ATM
	Switch(config-if)#	router module.
Step 2
	Switch(config-if)# no ip address	Disables IP processing.
Step 3
	Switch(config-if)#no ip directed-broadcast	Disables the translation of directed broadcasts to
		physical broadcasts.
Step 4
	Switch(config-if)# map-groupnumber	Enters the map group name associated with this
		PVC.
Step 5 Switch(config-if)#atm pvc 2 vci-Ainterface atm		Configures a PVC.
	card/subcard/port vpi-B	Note The VPI number on the ATM router
		module interface must be 2.
Step 6
	Switch(config-if)# bridge-groupnumber	Assigns the interface to a bridge group.
Step 7
	Switch(config-if)# end	Returns to global configuration mode.
	Switch(config)#
Step 8
	Switch(config)# map-listname	Creates a map list by naming it, and enters
	Switch(config-map-list)#	map-list configuration mode.
Step 9
	Switch(config-map-list)# bridge atm-vcnumber	Enables packet flooding on a PVC.
	broadcast

	ATM and Layer 3 Switch Router Software Configuration Guide
OL-1911-05		24-25