Cisco CRS Configuration Manual page 273

Implementing MPLS Layer 3 VPNs
Step 9
dot1q native vlan vlan-id
Example:
RP/0/RP0/CPU0:router(config-if)# dot1q native
vlan 1
Assigns the native VLAN ID of a physical interface trunking 802.1Q VLAN traffic.
Step 10 router bgp as-number
Example:
RP/0/RP0/CPU0:router(config)# router bgp 1
Specifies the autonomous system number and enters the BGP configuration mode, allowing you to configure the BGP
routing process.
Step 11
nsr
Example:
RP/0/RP0/CPU0:router(config-bgp)# nsr
Activates BGP NSR.
Step 12 bgp router-id ip-address
Example:
RP/0/RP0/CPU0:router(config-bgp)# bgp router-id 1.1.1.1
Configures the local router with a specified router ID.
Step 13
address-family {vpnv4 | vpnv6} unicast
Example:
RP/0/RP0/CPU0:router(config-bgp)# address-family vpnv4 unicast
Enters address family configuration submode for the specified address family.
Step 14 neighbor ip-address
Example:
RP/0/RP0/CPU0:router(config-bgp)# neighbor 4.4.4.4
Places the router in neighbor configuration mode for BGP routing and configures the neighbor IP address as a BGP peer.
Step 15 remote-as as-number
Example:
RP/0/RP0/CPU0:router(config-bgp-nbr)#remote-as 1
Creates a neighbor and assigns a remote autonomous system number to it..
Step 16 update-source type interface-path-id
Cisco IOS XR Virtual Private Network Configuration Guide for the Cisco CRS Router, Release 6.1.x
Configuring L3VPN over GRE
259