Cisco Systems A9014CFD manual Configuring Layer 2 Forwarding, 35-5

Chapter 35 Layer 2 Control Protocol Peering, Forwarding, and Tunneling

How to Configure Layer 2 Control Protocol Peering, Forwarding, and Tunneling

DETAILED STEPS

	Command	Purpose
Step 1	enable	Enables privileged EXEC mode.
			• Enter your password if prompted.
	Example:
	Router> enable
Step 2	configure terminal	Enters global configuration mode.
	Example:
	Router# configure terminal
Step 3	interface type number	Specifies an interface type and number and enters interface
		configuration mode.
	Example:
	Router(config)# interface gigabitethernet
	0/6
Step 4	service instance id ethernet	Configures an Ethernet service instance on an interface.
			• id—Integer that uniquely identifies a service instance on an
	Example:			interface.
	Router(config-if)# service instance 20
	ethernet
Step 5	encapsulation encapsulation-type	Defines the matching criteria to map untagged ingress Ethernet
		frames on an interface to the appropriate service instance.
	Example:
	Router(config-if-srv)# encapsulation
	untagged
Step 6	l2protocol peer [protocol]	Configures transparent Layer 2 protocol peering on the interface for
		a specified layer 2 protocol.
	Example:		• protocol—The protocol to be used. The options are: cdp, dtp,
	Router(config-if-srv)# l2protocol peer lacp			lacp, lldp, stp,and vtp.
		Note			The peer option is not supported for DTP protocol.

Configuring Layer 2 Forwarding

Complete the following steps to configure layer 2 forwarding:

Restrictions

•The layer 2 forwarding functionality is supported only on an untagged EFP (Only one untagged EFP exists per interface).

•Forwarding functionality is not supported with dot1q VLAN range encapsulation.

	Cisco ASR 901 Series Aggregation Services Router Software Configuration Guide
OL-23826-09		35-5