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Configuring Integrated IS-IS
IS-IS Interface Parameters Configuration Task List
IPC-282
Cisco IOS IP Configuration Guide
Setting the Hello Multiplier
To specify the number of IS-IS hello packets a neighbor must miss before the router should declare the
adjacency as down, use the following command in interface configuration command. The default value
is 3.
Specifying Designated Router Election
You can configure the priority to use for designated router election. Priorities can be configured for
Level 1 and Level 2 individually.
To specify the designated router election, use the following command in interface configuration mode:
Specifying the Interface Circuit Type
You can specify adjacency levels on a specified interface. This parameter is also referred to as the
interface circuit type.
To specify the interface circuit type, use the following command in interface configuration mode:
Assigning a Password for an Interface
You can assign different passwords for different routing levels. Specifying Level 1 or Level 2 configures
the password for only Level 1 or Level 2 routing, respectively. If you do not specify a level, the default
is Level 1. By default, authentication is disabled.
To configure a password for the specified level, use the following command in interface configuration
mode:
Command Purpose
Router(config-if)# isis hello-multiplier multiplier
[level-1 | level-2]
Sets the hello multiplier.
Command Purpose
Router(config-if)# isis priority number-value [level-1
| level-2]
Configures the priority to use for designated router
election.
Command Purpose
Router(config-if)# isis circuit-type [level-1 |
level-1-2 | level-2-only]
Configures the type of adjacency desired for neighbors on
the specified interface (the interface circuit type).
Command Purpose
Router(config-if)# isis password password [level-1 |
level-2]
Configures the authentication password for a specified
interface.