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Implementing BGP on Cisco IOS XR Software
How to Implement BGP on Cisco IOS XR Software
RC-64
Cisco IOS XR Routing Configuration Guide
Disabling Next Hop Processing on BGP Updates
Perform this task to disable next hop calculation for a neighbor and insert your own address in the next
hop field of BGP updates. Disabling the calculation of the best next hop to use when advertising a route
causes all routes to be advertised with the network device as the next hop.
Note Next hop processing can be disabled for address family group, neighbor group, or neighbor address
family.
SUMMARY STEPS
1. configure
2. router bgp autonomous-system-number
3. neighbor ip-address
4. remote-as autonomous-system-number
5. address-family {ipv4 unicast | ipv4 multicast | ipv6 unicast | ipv6 multicast}
6. next-hop-self
7. end
or
commit
DETAILED STEPS
Command or Action Purpose
Step 1
configure
Example:
RP/0/RP0/CPU0:router# configure
Enters 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
neighbor
ip-address
Example:
RP/0/RP0/CPU0:router(config-bgp)# neighbor
172.168.40.24
Places the router in neighbor configuration mode for BGP
routing and configures the neighbor IP address
172.168.40.24 as a BGP peer.
Step 4
remote-as
autonomous-system-number
Example:
RP/0/RP0/CPU0:router(config-bgp-nbr)# remote-as
2002
Creates a neighbor and assigns it a remote autonomous
system number of 2002.