Sets the maximum number of seconds an unrefreshed Link State PDU (LSP) remains in the LSP database of a device.
The default maximum lifetime is 1200 seconds (20 minutes).
Specifies the maximum lifetime in seconds. Valid values range from 1 through 65535 seconds. The default is 1200 seconds.
IS-IS router configuration mode
IS-IS is supported only on devices based on the DNX chipset family. For a list of such devices, see "Supported Hardware".
The max-lsp-lifetime and lsp-refresh-interval commands must be configured in such a way that the LSPs are refreshed before the maximum LSP lifetime is reached. Otherwise, the device's originated LSPs may be timed out by neighbors of the device.
The no form of the command removes the configured period of time.
The following example changes the maximum LSP lifetime to 2400 seconds.
device# configure terminal device(config)# router isis device(config-isis-router)# max-lsp-lifetime 2400