Cisco ASR 9000 Series Routing Configuration Guide

Configuring L3VPN iBGP PE-CE
L3VPN iBGP PE-CE can be enabled on the neighbor, neighbor-group, or session-group. To configure L3VPN
iBGP PE-CE, follow these steps:
Before You Begin
The CE must be an internal BGP peer.
SUMMARY STEPS
1.
configure
2.
router bgp as-number
3.
vrf vrf-name
4.
neighbor ip-address internal-vpn-client
5.
commit
6.
show bgp vrf vrf-name neighbors ip-address
7.
show bgp {vpnv4|vpnv6 } unicast rd
DETAILED STEPS
PurposeCommand or Action
configure
Step 1
Specifies the autonomous system number and enters the BGP
configuration mode, allowing you to configure the BGP routing
process.
router bgp as-number
Example:
RP/0/RSP0/CPU0:router(config)# router bgp
120
Step 2
Configures a VRF instance.
vrf vrf-name
Example:
RP/0/RSP0/CPU0:router(config-bgp)# vrf blue
Step 3
Configures a CE neighboring device with which to exchange
routing information. The neighbor internal-vpn-client
neighbor ip-address internal-vpn-client
Example:
RP/0/RSP0/CPU0:router(config-bgp-vrf)#
neighbor 10.0.0.0 internal-vpn-client
Step 4
command stacks the iBGP-CE neighbor path in the VPN
attribute set.
commit
Step 5
Displays whether the iBGP PE-CE feature is enabled for the
VRF CE peer, or not.
show bgp vrf vrf-name neighbors ip-address
Step 6
Displays the ATTR_SET attributes in the command output
when the L3VPN iBGP PE-CE is enabled on a CE.
show bgp {vpnv4|vpnv6 } unicast rd
Step 7
Cisco ASR 9000 Series Aggregation Services Router Routing Configuration Guide, Release 5.3.x
133
Implementing BGP
L3VPN iBGP PE-CE

Cisco ASR 9000 Series Specifications

General

Brand	Cisco
Model	ASR 9000 Series
Category	Network Router
Language	English