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Implementing BGP on Cisco IOS XR Software
How to Implement BGP on Cisco IOS XR Software
RC-82
Cisco IOS XR Routing Configuration Guide
OL-14356-01
DETAILED STEPS
Command or Action Purpose
Step 1
configure
Example:
RP/0/RP0/CPU0:router# configure
Enters global configuration mode.
Step 2
router bgp as-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 {ipv4 unicast | ipv4 multicast |
ipv4 tunnel | ipv4 mdt | ipv6 unicast | ipv6
multicast | vpnv4 unicast | vpnv6 unicast}
Example:
RP/0/RP0/CPU0:router(config-bgp)#
address-family ipv4 unicast
Enters address family configuration mode for the specified
address family.
Step 4
nexthop trigger-delay {critical delay |
non-critical delay}
Example:
RP/0/RP0/CPU0:router(config-bgp-af)# nexthop
trigger-delay critical 15000
Sets the critical next-hop trigger delay.
Step 5
end
or
commit
Example:
RP/0/RP0/CPU0:router(config-bgp-af)# end
or
RP/0/RP0/CPU0:router(config-bgp-af)# commit
Saves configuration changes.
• When you issue the end command, the system prompts
you to commit changes:
Uncommitted changes found, commit them before
exiting(yes/no/cancel)?
[cancel]:
–
Entering yes saves configuration changes to the
running configuration file, exits the configuration
session, and returns the router to EXEC mode.
–
Entering no exits the configuration session and
returns the router to EXEC mode without
committing the configuration changes.
–
Entering cancel leaves the router in the current
configuration session without exiting or
committing the configuration changes.
• Use the commit command to save the configuration
changes to the running configuration file and remain
within the configuration session.