Configure the remote hello interval to change how often hello packets are sent out from an interface level.
default isis remote l1-hello-interval
isis remote l1-hello-interval <1-600>
no isis remote l1-hello-interval
The default Level 1 remote hello interval value is 9 seconds.
GigabitEthernet Interface Configuration
This command does not apply to all hardware platforms. For more information about feature support, see Fabric Engine and VOSS Feature Support Matrix.