CHAPTER 3
Ethernet Features
This chapter describes how to configure Layer 2 (L2) Ethernet features on the Cisco ASR 9000 Series
Aggregation Services Routers supporting Cisco IOS XR software.
For more information on configuring Ethernet interfaces, refer to The Carrier Ethernet Model module of this
configuration guide.
Feature History for Configuring Ethernet Interfaces on the Cisco ASR 9000 Series Routers
ModificationRelease
Support for Policy Based Forwarding and Layer 2
Protocol Tunneling features was added..
Release 3.9.1
• Prerequisites for Implementing Ethernet Features, on page 39
• Information About Implementing Ethernet Features, on page 39
• How to Implement Ethernet Features, on page 46
• Configuration Examples, on page 49
Prerequisites for Implementing Ethernet Features
You must be in a user group associated with a task group that includes the proper task IDs. The command
reference guides include the task IDs required for each command.
If you suspect user group assignment is preventing you from using a command, contact your AAA administrator
for assistance.
Information About Implementing Ethernet Features
To configure 10-Gigabit Ethernet interfaces, you must understand these concepts:
Policy Based Forwarding
The Cisco ASR 9000 Series Routers allow a single MAC address to be mapped to a VLAN that is different
from the port’s configured VLAN. To separate the traffic entering two different EFPs, you must define an
EFP using the source VLAN tag and the source MAC address.
L2VPN and Ethernet Services Configuration Guide for Cisco ASR 9000 Series Routers, IOS XR Release 6.3.x
39