Configuring optional IS-IS interface parameters
Use the following procedure to configure optional IS-IS interface parameters.
Important
Save your configuration using save config for the updates to be available after reboot. Saving the configuration also ensures that any authentication keys (passwords) specified during the configuration are properly encrypted.
Procedure
Example
Switch:1> enable
Switch:1# configure terminal
Switch(config):1# interface gigabitethernet 1/1
Switch(config-if):1# isis
Switch(config-if):1# isis hello-auth type hmac-md5 key test
Switch(config-if):1# isis l1–dr-priority 100
Switch(config-if):1# isis l1–hello-interval 20
Switch(config-if):1# isis l1–hello-multiplier 10
Switch(config):1# save config
Variable definitions
The following table defines parameters for the isis command.
Variable |
Value |
---|---|
hello-auth type {none|simple|hmac-md5|hmac-sha-256}][key [key WORD<1–16> ] [key-id <1–255> ] |
Specifies the authentication type used for IS-IS hello packets on the interface. type can be one of the following:
The default is none. Use the no or default options to set the hello-auth type to none. |
l1-dr-priority <0–127> |
Configures the level 1 IS-IS designated router priority to the specified value. The default value is 64. Use the no or default options to set this parameter to the default value of 64. Note:
This parameter is not used for SPBM because SPBM only runs on point-to-point interfaces. This parameter is for designated router election on a broadcast LAN segment, which is not supported. |
l1-hello-interval <1–600> |
Configures the level 1 hello interval. The default value is 9 seconds. Use the no or default options to set this parameter to the default value of 9 seconds. |
l1-hello-multiplier <1–600> |
Configures the level 1 hello multiplier. The default value is 3 seconds. Use the no or default options to set this parameter to the default value of 3 seconds. |