> # About Dead Time Intervals

> You can set the FSPF dead time interval to specify the maximum interval for which a hello message must be received before the neighbor is considered lost and removed from the database. The integer value can range from 1 to 65,535 seconds.

> Note This value must be the same in the ports at both ends of the ISL.

> Caution | An error is reported at the command prompt if the configured dead time interval is less than the hello time interval.

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