Changing the LSP interval and retransmit interval

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 lsp-interval 45 command and specify a value to change the LSP interval from the default of 33 milliseconds.
   

   device(config-isis-router)# lsp-interval 42
   

4. Enter the retransmit-interval command and specify a value to change the retransmission interval from the default of 5 seconds.
   

   device(config-isis-router)# retransmit-interval 10
   

The following example changes the LSP interval to 45 milliseconds and changes the retransmission interval to 10 milliseconds.

device# configure terminal
device(config)# router isis
device(config-isis-router)# lsp-interval 42
device(config-isis-router)# retransmit-interval 10