Specifying the interval for sending IS-IS hello packets
If a neighbor does not receive any hello packets from the router within the advertised hold time, it considers the router down and recalculates the routes. The hold time is the hello multiplier multiplied by the hello interval.
To specify the interval for sending hello packets:
Step | Command | Remarks |
|---|---|---|
1. Enter system view. | system-view | N/A |
2. Enter interface view. | interface interface-type interface-number | N/A |
3. Specify the interval for sending hello packets. | isis timer hello seconds [ level-1 | level-2 ] | The default setting is 10 seconds. The interval between hello packets sent by the DIS is 1/3 the hello interval set with the isis timer hello command. |