Cisco Systems OL-1911-05 manual Configuring Bridging, Switchconfig# interface fastethernet, 24-24

Chapter 24 Configuring ATM Router Module Interfaces

Configuring Bridging

Configuring Bridging

All PVCs configured on ATM router module interfaces are used for bridging.

To configure bridging on an ATM router module interface, use the following commands, beginning in global configuration mode:

	Command	Purpose
Step 1
	Switch(config)# interface atm card/subcard/port	Specifies the interface on the ATM router module
	Switch(config-if)#	to configure.
Step 2 Switch(config-if)#atm pvc 2 vci interface atm		Configures a PVC.
	card/subcard/port vpi	Note The VPI number on the ATM router
		module interface must be 2.
Step 3
	Switch(config-if)# bridge-groupnumber	Assigns the interface to a bridge group.
Step 4
	Switch(config-if)# end	Returns to global configuration mode.
	Switch(config)#
Step 5
	Switch(config)# interface fastethernet	Specifies the Fast Ethernet interface to configure.
	card/subcard/port
	Switch(config-if)#
Step 6
	Switch(config-if)# no cdp enable	Disables Cisco Discovery Protocol on the
		interface.
Step 7
	Switch(config-if)# bridge-groupnumber	Assigns the interface to a bridge group.
Step 8
	Switch(config-if)# end	Returns to global configuration mode.
	Switch(config)#
Step 9
	Switch(config)# bridge number protocol ieee	Specifies the IEEE 802.1D Spanning-Tree
		Protocol for the bridge group.

Example

The following example shows how to configure bridging on a Catalyst 8540 MSR with a Fast Ethernet interface module in slot 0, an ATM interface module in slot 1, and an ATM router module in slot 3.

Figure 24-8shows an example bridging network.

Figure 24-8 Example Network for Bridging

ATM switch
Cisco 7500 router A	router	Cisco 7500 router B
IF = atm 1/0/0		IF = fa 0/0/0
10.10.10.2		10.10.10.1
IF = atm 0		IF = e0
MAC addr = 0000.0CAC.BE94		MAC addr = 0060.3E59.C63C

38492

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