Avaya Configuring IP Exterior Gateway Protocols (BGP and EGP) Instrukcja Użytkownika Pobierz pdf (Strona 86)

Configuring IP Exterior Gateway Protocols (BGP and EGP)

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308628-15.0 Rev 00

Initiating a Peer-to-Peer Session

A BGP speaker initiates a peer-to-peer connection by periodically issuing an open

message.

BGP speakers respond to connection requests by returning open

messages.

In Figure 4-1

, 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 4-1. 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 communication. If the attempt is unsuccessful, BGP retries every 120

seconds (default interval).

You can use the BCC or Site Manager to change the default retry interval or

disable the initiation function by setting the retry parameter to 0.

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 B to A

IP0022B

BGP

speaker B

BGP

speaker B

BGP

speaker A

BGP

speaker A

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Avaya Configuring IP Exterior Gateway Protocols (BGP and EGP) Instrukcja Użytkownika Strona 86