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Configuring the LDP Hold Time

The hold time determines how long an LDP node should wait for a hello message before declaring a neighbor to be down. This value is sent as part of a hello message so that each LDP node tells its neighbors how long to wait. The values sent by each neighbor do not have to match.

The hold time should normally be at least three times the hello interval. The default is 15 seconds for link hello messages and 45 seconds for targeted hello messages. However, it is possible to configure an LDP hold time that is close to the value for the hello interval.

Note: Configuring an LDP hold time that is close to the hello interval can cause the router to declare an LDP neighbor down that is still functioning normally. For more information, see Configuring the LDP Hello Interval.

To modify the hold time, include the hold-time statement:




hold-time seconds;

For a list of hierarchy levels at which you can include this statement, see the statement summary section for this statement.

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