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Cisco ASR 901 Series Aggregation Services Router Software Configuration Guide
OL-23826-09
Chapter 35 Layer 2 Control Protocol Peering, Forwarding, and Tunneling
Configuration Examples
Associated Interface: GigabitEthernet0/4
Associated EVC:
L2protocol tunnel
CE-Vlans:
Encapsulation: untagged
Interface Dot1q Tunnel Ethertype: 0x8100
State: Up
EFP Statistics:
Pkts In Bytes In Pkts Out Bytes Out
0 0 0 0
EFP Microblocks:
****************
Microblock type: Bridge-domain
Bridge-domain: 9
Configuration Examples
This section provides sample configuration examples for Layer 2 Control Protocol Peering, Forwarding,
and Tunneling feature on the Cisco ASR 901 Routers.
• Example: Configuring Layer 2 Peering, page 35-10
• Example: Configuring Layer 2 Forwarding, page 35-10
• Example: Configuring Layer 2 Tunneling, page 35-11
Example: Configuring Layer 2 Peering
The following is a sample configuration of layer 2 peering.
!
interface GigabitEthernet0/0
negotiation auto
l2proto-forward tagged -- forwards all tagged frames, and drops untagged frames
cdp enable
service instance 9 ethernet
encapsulation dot1q 9
rewrite ingress tag pop 1 symmetric
bridge-domain 9
!
service instance 99 ethernet
encapsulation untagged
l2protocol peer cdp lldp -- peers lldp and cdp
bridge-domain 99
!
!
Example: Configuring Layer 2 Forwarding
The following is a sample configuration of layer 2 protocol forwarding at untagged EFP.
Building configuration...
Current configuration : 267 bytes
!
interface Port-channel1