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Implementing BGP on Cisco IOS XR Software
How to Implement BGP on Cisco IOS XR Software
RC-93
Cisco IOS XR Routing Configuration Guide
OL-14356-01
Configuring Distributed BGP
Perform this task to configure distributed BGP. Configuring distributed BGP includes starting the speaker
process and allocating the speaker process to a neighbor.
Restrictions
If BGP is running in standalone mode, the clear bgp current-mode or clear bgp vrf all * command
must be used to switch from standalone mode to distributed mode.
SUMMARY STEPS
1. configure
2. router bgp as-number
3. distributed speaker id
4. commit
Step 5
soft-reconfiguration inbound [always]
Example:
RP/0/RP0/CPU0:router(config-bgp-nbr-af)#
soft-reconfiguration inbound always
Configures the software to store updates received from a
specified neighbor. Soft reconfiguration inbound causes the
software to store the original unmodified route in addition
to a route that is modified or filtered. This allows a “soft
clear” to be performed after the inbound policy is changed.
Soft reconfiguration enables the software to store the
incoming updates before apply policy if route refresh is not
supported by the peer (otherwise a copy of the update is not
stored). The always keyword forces the software to store a
copy even when route refresh is supported by the peer.
Step 6
end
or
commit
Example:
RP/0/RP0/CPU0:router(config-bgp-nbr-af)# end
or
RP/0/RP0/CPU0:router(config-bgp-nbr-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.
Command or Action Purpose