
Configuring IP Exterior Gateway Protocols (BGP and EGP)
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308628-14.00 Rev 00
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 the BCC or Site Manager to specify BGP-3 as the minimum or
maximum acceptable version.
Using the BCC
To specify the minimum version, navigate to a BGP peer prompt and enter:
min-version
<
version>
version
is one of the following:
/jointfilesconvert/106988/bgp3
/jointfilesconvert/106988/bgp4
(default)
To specify the maximum version, navigate to a BGP peer prompt and enter:
max-version
<
version>
version
is one of the following:
/jointfilesconvert/106988/bgp3
/jointfilesconvert/106988/bgp4
(default)
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