Avaya Configuring IP Services Manual do Utilizador Página 185

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Customizing BGP Services
114065 Rev. A 6-19
Specifying a Holddown Time
The holddown time is the amount of time either peer will wait for a Keepalive or
Update message before declaring the connection down.
A BGP speaker that is initiating a connection inserts a holddown time value into
the Open message. The responding peer responds with an Open message that also
contains a holddown time value. If the BGP speakers establish a session, they use
the lesser value (which must be greater than 2). There are two exceptions to this
rule:
If one peer sends a zero holddown time, the peers use the nonzero holdtime on the
session.
If both peers send zero holddown times, the peers observe no holddown time on
the session.
By default, BGP inserts a value of 90 seconds into the Open message. You can use
Site Manager to specify a holddown time value or disable the holddown function.
Setting a Minimum AS Origination Interval
By default, a BGP speaker that issues an update to advertise a change in the AS
must wait at least 15 seconds before advertising a subsequent change. You can use
Site Manager to specify a different interval.
Site Manager: Holdtime parameter: page A-9
Site Manager: Min AS Origination Interval parameter: page A-10
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