Cisco CRS Configuration Manual page 278

Configuring BGP Route Distinguisher and Core-facing Sessions
SUMMARY STEPS
1. configure
2. router bgp as-number
3. address-family ipv6 unicast
4. vrf vrf-name
5. rd { as-number:nn | ip-address:nn auto }
6. address-family ipv6 unicast
7. exit
8. neighbor ip-address remote-as as-number
9. address-family ipv6 unicast
10. Use the commit or end command.
DETAILED STEPS
Step 1 configure
Example:
RP/0/RSP0/CPU0:router#
Enters the Global Configuration mode.
Step 2 router bgp as-number
Example:
RP/0/RP0/CPU0:router(config)# router bgp 100
RP/0/RP0/CPU0:router(config-bgp)#
Enters router BGP configuration mode.
Step 3 address-family ipv6 unicast
Example:
RP/0/RP0/CPU0:router(config-bgp)# address-family vpnv6 unicast
RP/0/RP0/CPU0:router(config-bgp-af)
Enters address family configuration mode for the VPNv6 address family.
Step 4
vrf vrf-name
Example:
RP/0/RP0/CPU0:router(config-bgp)# vrf red
Configures a VPN VRF instance and enters VRF configuration mode.
Step 5
rd { as-number:nn | ip-address:nn auto }
Example:
RP/0/RP0/CPU0:router(config-bgp-vrf)# router bgp 100
Cisco IOS XR Virtual Private Network Configuration Guide for the Cisco CRS Router, Release 6.1.x
264
configure
Implementing MPLS Layer 3 VPNs