Modify the LSP Interval

By default, the router sends one LSP packet out an interface every 100 milliseconds. To modify this interval, include the lsp-interval statement at the [edit protocols isis interface interface-name] hierarchy level (for routing instances, include the statement at the [edit routing-instances routing-instance-name protocols isis interface interface-name] hierarchy level):

[edit protocols isis interface interface-name]

lsp-interval milliseconds; 

To disable the transmission of all LSP packets, set the interval to 0.