Changing the maximum LSP lifetime

1. Enter the configure terminal command to access global configuration mode.
   

   device# configure terminal

2. Enter the router isis command to enter IS-IS router configuration mode and enable IS-IS on the device.
   

   device(config)# router isis
   

3. Enter the max-lsp-lifetime command and specify a value to globally configure the maximum LSP lifetime.
   

   device(config-isis-router)# max-lsp-lifetime 2400
   

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