Configuring Bgp Route Distinguisher And Core-Facing Sessions - Cisco CRS Configuration Manual

Implementing MPLS Layer 3 VPNs
Configures a VRF instance and enters VRF configuration mode.
Step 3 address-family ipv6 unicast
Example:
RP/0/RP0/CPU0:router(config-vrf)# address-family ipv4 unicast
Enters VRF address family configuration mode for the IPv6 address family.
Step 4 import route-target [ as-number:nn | ip-address:nn ]
Example:
RP/0/RP0/CPU0:router(config-vrf-af)# import route-target 120:1
Configures a VPN routing and forwarding (VRF) import route-target extended community.
Step 5 export route-target [ as-number:nn | ip-address:nn ]
Example:
RP/0/RP0/CPU0:router(config-vrf-af)# export route-target 120:2
Associates the local VPN with a route target. When the route is advertised to other provider edge (PE) routers, the export
route target is sent along with the route as an extended community.
Step 6 Use the commit or end command.
commit - Saves the configuration changes and remains within the configuration session.
end - Prompts user to take one of these actions:
• Yes - Saves configuration changes and exits the configuration session.
• No - Exits the configuration session without committing the configuration changes.
• Cancel - Remains in the configuration mode, without committing the configuration changes.

Configuring BGP Route Distinguisher and Core-facing Sessions

Perform this task to configure VRF route distinguisher values and core-facing neighbors under BGP.
Note Before you perform this task, you must first configure a VRF and map the VRF to an interface. For more
information, see Implementing MPLS VPNs over IP Tunnels
Cisco IOS XR Virtual Private Network Configuration Guide for the Cisco CRS Router, Release 6.1.x
Configuring BGP Route Distinguisher and Core-facing Sessions
on Cisco IOS XR Software.
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