Cisco NCS 5500 Series Configuration Manual page 81

Implementing BGP
SUMMARY STEPS
1. configure
2. router bgp as-number
3. neighbor ip-address
4. remote-as as-number
5. update-source type interface-path-id
6. address-family {vpnv4 unicast | vpnv6 unicast}
7. accept-own [inheritance-disable]
DETAILED STEPS
Step 1 configure
Step 2 router bgp as-number
Example:
RP/0/RP0/CPU0:router(config)#router bgp 100
Specifies the autonomous system number and enters the BGP configuration mode, allowing you to configure the BGP
routing process.
Step 3 neighbor ip-address
Example:
RP/0/RP0/CPU0:router(config-bgp)#neighbor 10.1.2.3
Places the router in neighbor configuration mode for BGP routing and configures the neighbor IP address as a BGP peer.
Step 4 remote-as as-number
Example:
RP/0/RP0/CPU0:router(config-bgp-nbr)#remote-as 100
Assigns a remote autonomous system number to the neighbor.
Step 5
update-source type interface-path-id
Example:
RP/0/RP0/CPU0:router(config-bgp-nbr)#update-source Loopback0
Allows sessions to use the primary IP address from a specific interface as the local address when forming a session with
a neighbor.
Step 6 address-family {vpnv4 unicast | vpnv6 unicast}
Example:
RP/0/RP0/CPU0:router(config-bgp-nbr)#address-family vpnv6 unicast
Specifies the address family as VPNv4 or VPNv6 and enters neighbor address family configuration mode.
Step 7
accept-own [inheritance-disable]
Example:
RP/0/RP0/CPU0:router(config-bgp-nbr-af)#accept-own
Enables handling of self-originated VPN routes containing Accept_Own community.
BGP Configuration Guide for Cisco NCS 5500 Series Routers, IOS XR Release 6.2.x
Configure BGP Accept Own
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