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BGP and BGP4+ Introduction
Software Reference Supplement for SwitchBlade® x8112, x908, x900 and x610 Series Switches
1.38 AlliedWare Plus
TM
Operating System - Software Version 5.4.3-2.6 C613-50032-01 REV D
How to adjust the AS origination interval
With the default value of 15 seconds for iBGP neighbors with a prefix in the same AS, BGP
routing updates are sent only every 15 seconds, even if a route is flapping many times
during this 15 second interval.
To assign a different as-origination-interval value for iBGP peers with a prefix in the same
AS, use the following command in Router Configuration mode: :
Use this command instead of the neighbor advertisement-interval (BGP and BGP4+)
command for iBGP peers with prefixes in the same AS for updates only within a local AS.
BGP dampening can also be used to control the effects of flapping routes. See the BGP
and BGP4+ Route Dampening section in this chapter, and the bgp dampening (BGP
and BGP4+) command in the BGP and BGP4+ Commands chapter for more information.
intro_bgp_5
Peer 2
Peer 1
Peer 3
AS1000
10.10.7.3
10.10.9.1
advertisement
iBGP 15 second
interval with
prefixes in
the same AS
awplus(config-router)#
neighbor <neighbor_address>
as-origination-interval <time>
This command sets the minimum interval between sending
iBGP routing updates with a 15 second iBGP default interval to
report changes in the local AS for iBGP peers with prefixes in
the same local AS.