Avaya Configuring IP Exterior Gateway Protocols (BGP and EGP) Uživatelský manuál stáhnout pdf (Strana 103)

Establishing a Peer-to-Peer Session

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Setting the External Advertisement Timer

After a connection is established, the BGP speaker uses one or more update

messages to send the entire IP routing table (compliant with local BGP export

policies). BGP, however, does not require the entire routing table to be sent again.

Therefore, the BGP speaker must keep a current version of the routing

information received from all of its peers for as long as the connection to each

peer is valid. This information is updated via update messages whenever changes

occur.

By default, BGP examines the routing table for changes every 5 seconds. If a

change has occurred, BGP issues an update message on the connection.

You can use the BCC or Site Manager to specify a value for the external

advertisement timer.

Using the BCC

Navigate to a BGP peer-specific prompt and enter:

advertise-time

seconds>

seconds

is an integer specifying how often BGP issues an update message on this

peer session.

For example, the following command sets the external advertisement timer to 20

seconds for the peer session established between interfaces 2.2.2.2 and 2.2.2.5:

peer/2.2.2.2/2.2.2.5/5#

advertise-time 20

peer/2.2.2.2/2.2.2.5/5#

Using Site Manager

Site Manager Procedure

You do this System responds

1. In the Configuration Manager window,

choose

Protocols

The Protocols menu opens.

2. Choose

. The IP menu opens.

3. Choose

BGP

. The BGP menu opens.

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Avaya Configuring IP Exterior Gateway Protocols (BGP and EGP) Uživatelský manuál Strana 103