Allied Telesis BGP4, VERSION 5.4.3-2.6 manual How to adjust the AS origination interval

BGP and BGP4+ Introduction

How to adjust the AS origination interval

AS1000

Peer 1

10.10.9.1

Peer 2

10.10.7.3

Peer 3

intro_bgp_5

iBGP 15 second advertisement interval with prefixes in the same AS

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-intervalvalue for iBGP peers with a prefix in the same AS, use the following command in Router Configuration mode: :

awplus(config-router)#

neighbor <neighbor_address> This command sets the minimum interval between sending as-origination-interval <time> 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.

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.

	Software Reference Supplement for SwitchBlade® x8112, x908, x900 and x610 Series Switches
1.38	AlliedWare PlusTM Operating System - Software Version 5.4.3-2.6	C613-50032-01 REV D