ASR 9000 Enhanced Ethernet Line
Card
ASR 9000 Ethernet Line CardFeature Name
YesNoMultiple I-SID Registration
Protocol Lite
YesNoPBB VPLS
YesNoPBB EVPN
YesNoMMRP for PBB VPLS Flood
Optimization
• Prerequisites for Implementing 802.1ah Provider Backbone Bridge, on page 356
• Information About Implementing 802.1ah Provider Backbone Bridge, on page 356
• How to Implement 802.1ah Provider Backbone Bridge, on page 370
• Configuration Examples for Implementing 802.1ah Provider Backbone Bridge, on page 398
• Configuring PBB-EVPN: Example, on page 401
Prerequisites for Implementing 802.1ah Provider Backbone
Bridge
This prerequisite applies to implementing 802.1ah Provider Backbone Bridge:
• 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.
• You must be familiar with the multipoint bridging concepts. Refer to the Implementing Multipoint Layer
2 Services module.
Information About Implementing 802.1ah Provider Backbone
Bridge
To implement 802.1ah, you must understand these concepts:
Benefits of IEEE 802.1ah standard
The benefits of IEEE 802.1ah provider backbone bridges are as follows:
• Increased service instance scalability—Enables a service provider to scale the number of services (service
VLANs or service instances) in a Provider Bridged Network (PBN).
• MAC address scalability—Encapsulates the customer packet, including MAC addresses, into a new
ethernet frame with new MAC addresses (the backbone bridge MAC addresses). This eliminates the
need for backbone core bridges to learn all MAC addresses of every customer and also eases the load
on backbone edge bridges.
L2VPN and Ethernet Services Configuration Guide for Cisco ASR 9000 Series Routers, IOS XR Release 6.3.x
356
Implementing IEEE 802.1ah Provider Backbone Bridge
Prerequisites for Implementing 802.1ah Provider Backbone Bridge