Prerequisites For Implementing Multipoint Layer 2 Services - Cisco CRS Configuration Manual

Prerequisites for Implementing Multipoint Layer 2 Services

Release
Release 4.1.0
Release 4.2.0
Release 4.2.1
Release 4.3.0
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Prerequisites for Implementing Multipoint Layer 2 Services
Before you configure Multipoint Layer 2 Services, ensure that the network is configured as follows:
• To perform these configuration tasks, your Cisco IOS XR software system administrator must assign
• Configure IP routing in the core so that the provider edge (PE) routers can reach each other through IP.
• Configure MPLS and Label Distribution Protocol (LDP) in the core so that a label switched path (LSP)
• Configure a loopback interface to originate and terminate Layer 2 traffic. Make sure that the PE routers
Cisco IOS XR Virtual Private Network Configuration Guide for the Cisco CRS Router, Release 6.1.x
58
Prerequisites for Implementing Multipoint Layer 2 Services, page 58
Restrictions for Implementing Multipoint Layer 2 Services, page 59
Information About Implementing Multipoint Layer 2 Services, page 59
How to Implement Multipoint Layer 2 Services, page 70
Configuration Examples for Multipoint Layer 2 Services, page 117
you to a user group associated with a task group that includes the corresponding command task IDs. All
command task IDs are listed in individual command references and in the Cisco IOS XR Task ID Reference
Guide.
If you need assistance with your task group assignment, contact your system administrator.
exists between the PE routers.
can access the other router's loopback interface.
Implementing Multipoint Layer 2 Services
Modification
Support for Pseudowire Headend feature was added.
Support was added for:
• VPLS pseudowire on LDP over TE and
Preferred TE path
• VPLS with Traffic Engineering Fast Reroute
(TE FRR)
Support was added for:
• Pseudowire Headend on Cisco CRS-3 router
• IPv6 packets over PWHE interfaces
Support was added for the Pseudowire Grouping
feature.