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Specifying the Transit Delay

Before a link-state update packet is propagated out of an interface, the router must increase the age of the packet. If you have a very slow link (for example, one with an average propagation delay of multiple seconds), the age of the packet must be increased by a similar amount. Doing this ensures that you do not receive a packet back that is younger than the original copy.

The default transit delay is 1 second. You should never have to modify the default value. However, if you need to specify the approximate transit delay to use to age update packets, include the transit-delay statement:




transit-delay 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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