Configuring system-level IS-IS parameters

Use the following procedure to configure system-level IS-IS parameters.

Procedure

  1. In the navigation pane, expand Configuration > IS-IS > IS-IS.
  2. Click the System Level tab.
  3. Configure the IS-IS system level parameters.
  4. Click Apply.

System Level field descriptions

Use the data in the following table to use the System Level tab.

Name

Description

Index

Specifies the level: l1 or l2.

Only l1 is supported.

State

Specifies the state of the database at this level. The value 'off' indicates that IS-IS is not active at this level. The value 'on' indicates that IS-IS is active at this level, and not overloaded. The value 'waiting' indicates a database that is low on an essential resources, such as memory. The administrator may force the state to 'overloaded' by setting the object SetOverload. If the state is 'waiting' or 'overloaded', you originate LSPs with the Overload bit set.

SetOverload

Sets or clears the overload condition. The possible values are true or false.

The default value is false.

SetOverloadUntil

Sets the IS-IS overload-on-startup value in seconds. The overload-on-startup value is used as a timer to control when to send out LSPs with the overload bit cleared after IS-IS startup.

Note:

If you configure SetOverloadUntil to a number other than zero, then the overload bit is set at this level when the AdminState variable goes to the state 'on' for this Intermediate System.

After the SetOverloadUntil seconds elapse, the overload flag remains set if the implementation runs out of memory or if you configured it manually using SetOverload to true.

If SetOverload is false, the system clears the overload bit after SetOverloadUntil seconds elapse, if the system has not run out of memory.

The default value is 20.

MetricStyle

Specifies the IS-IS metric type. Available values are narrow, wide or both. Only wide is supported.