
Configuring IP Services
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Initiating a Peer-to-Peer Connection
A BGP speaker that wants to initiate peer-to-peer connections periodically issues
an Open message.
BGP speakers respond to connection requests by returning an Open message. In
Figure 6-4, for example, BGP Speaker A sends an Open message to BGP Speaker
B to request a connection; BGP Speaker B responds by sending an Open message
to BGP Speaker A.
Figure 6-4. Establishing and Confirming a Connection between BGP
Peers
All BGP speakers respond to connection requests from other speakers.
By default, BGP attempts to initiate a connection on each interface configured for
peer-to-peer communications. If the attempt is unsuccessful, BGP retries every
120 seconds.
You can use Site Manager to specify a retry interval or disable the initiation
function.
Site Manager: Connect Retry Timer parameter: page A-9
BGP
Speaker B
BGP
Speaker A
Open Message A to B
Open Message B to A
BGP
Speaker B
BGP
Speaker A
Keepalive Message A to B
Keepalive Message A to B
IP0022A
BGP
Speaker B
BGP
Speaker B
BGP
Speaker A
BGP
Speaker A
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