
Customizing BGP Services
114065 Rev. A 6-17
Negotiating the BGP Version
BGP peers negotiate the version of BGP that they will use to exchange routing
information. If you enable both BGP-3 and BGP-4, the router first attempts to use
BGP-4. If the BGP peer is not a BGP-4 speaker, the router uses BGP-3.
By default, BGP considers BGP-4 as both the minimum and maximum acceptable
version for negotiation.
You can use Site Manager to specify BGP-3 as the minimum or maximum
acceptable version.
Keeping the Connection Alive
Once a session has been established, BGP peers periodically issue a Keepalive
message to maintain the connection. By default, BGP issues a Keepalive message
every 30 seconds.
You can use Site Manager to specify how often BGP issues a Keepalive message
on this peer connection or to disable the Keepalive function.
Site Manager: Min BGP Version parameter: page A-7
Site Manager: Max BGP Version parameter: page A-8
Site Manager: Keepalive Timer parameter: page A-10
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