Configuring Multiprotocol Bgp On The Pe Routers And Route Reflectors - Cisco CRS Configuration Manual

Configuring the Core Network
Forwarding module in the Cisco IOS XR IP Addresses and Services Configuration Guide for the Cisco CRS
Router.

Configuring Multiprotocol BGP on the PE Routers and Route Reflectors

Perform this task to configure multiprotocol BGP (MP-BGP) connectivity on the PE routers and route reflectors.
SUMMARY STEPS
1. configure
2. router bgp autonomous-system-number
3. address-family vpnv4 unicast or address-family vpnv6 unicast
4. neighbor ip-address remote-as autonomous-system-number
5. address-family vpnv4 unicast or address-family vpnv6 unicast
6. Use the commit or end command.
DETAILED STEPS
Step 1
configure
Example:
RP/0/RP0/CPU0:router# configure
Enters the Global Configuration mode.
Step 2
router bgp autonomous-system-number
Example:
RP/0/RP0/CPU0:router(config)# router bgp 120
Enters BGP configuration mode allowing you to configure the BGP routing process.
Step 3 address-family vpnv4 unicast or address-family vpnv6 unicast
Example:
RP/0/RP0/CPU0:router(config-bgp)# address-family vpnv4 unicast
Enters VPNv4 or VPNv6 address family configuration mode for the VPNv4 or VPNv6 address family.
Step 4 neighbor ip-address remote-as autonomous-system-number
Example:
RP/0/RP0/CPU0:router(config-bgp)# neighbor 172.168.40.24 remote-as 2002
Creates a neighbor and assigns it a remote autonomous system number.
Step 5 address-family vpnv4 unicast or address-family vpnv6 unicast
Cisco IOS XR Virtual Private Network Configuration Guide for the Cisco CRS Router, Release 6.1.x
198
Implementing MPLS Layer 3 VPNs