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Cisco ASR 901 Series Aggregation Services Router Software Configuration Guide
OL-23826-09
Chapter 16 Configuring MPLS VPNs
Configuring MPLS VPNs
Configuring MPLS VPNs
Layer 3 VPNs allow you to establish VPNs in a routed environment, improving the flexibility and ease
of maintenance of VPNs. For instructions on how to configure layer 3 VPNs, see the
MPLS Configuration Guide, Cisco IOS Release 15.1S.
The following restrictions apply to MPLS VPNs:
• When the port channel is on core, bridge ID must be equal to the encapsulation ID.
• Equal Cost Multipath (ECMP) is not supported for swap cases.
Configuration Examples for MPLS VPN
This section contains the following sample configurations involving three routers:
• PE1 Configuration, page 16-2
• Provider Configuration, page 16-5
• PE2 Configuration, page 16-6
PE1 Configuration
Current configuration : 3326 bytes
!
! Last configuration change at 20:37:37 UTC Thu Sep 29 2011
!
version 15.1
service timestamps debug datetime msec
service timestamps log datetime msec
!
hostname Router
!
boot-start-marker
boot-end-marker
!
!
!card type command needed for slot/vwic-slot 0/0
no logging console
!
no aaa new-model
ip source-route
ip cef
!
ip vrf customer_2
rd 1:2
route-target export 1:2
route-target import 1:2
!
!
!
no ip domain lookup
no ipv6 cef
!
!
multilink bundle-name authenticated
!
!
!
spanning-tree mode pvst