
Configuring IP Services
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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 holddown
time 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 the BCC or Site Manager to specify a holddown time value or disable
the holddown function.
Using the BCC
Navigate to a BGP peer-specific prompt and enter
holddown
seconds
seconds is an integer indicating the number of seconds that BGP waits for a
keepalive message before declaring the connection down.
For example, the following command sets the holddown timer to 60 seconds for
the peer connection established between interfaces 2.2.2.2 and 2.2.2.5.
peer/2.2.2.2/2.2.2.5/5# holddown 60
peer/2.2.2.2/2.2.2.5/5#
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