
Configuring IP Exterior Gateway Protocols (BGP and EGP)
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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 initiates a connection inserts a holddown time value into the
open message. The 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 to
disable the holddown function by setting this value to 0.
4. Choose
Peers
. The IP Interface List for BGP window
opens.
5. Click on the IP interface for which you
want to edit BGP peer parameters.
6. Click on
BGP Peers
. The BGP Peer List window opens.
7. Click on the peer for which you want to
edit parameters.
The parameters for that peer appear in
the window.
8. Set the
External Advertisement Timer
parameter. Click on
Help
or see the
parameter description on page A-13
.
9. Click on
Apply
, and then click on
Done
. Site Manager returns you to the IP
Interface List for BGP window.
Site Manager Procedure
(continued)
You do this System responds
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