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Disabling IS-IS on a Level

By default, IS-IS is enabled for IS-IS areas on all enabled interfaces on which the ISO protocol family is enabled (at the [edit interfaces interface unit logical-unit-number] hierarchy level). To disable IS-IS at any particular level on an interface, include the disable statement:




disable;

For a list of hierarchy levels at which you can include this statement, see the statement summary section for this statement.

Enabling IS-IS on an interface (by including the interface statement at the [edit protocols isis] hierarchy level), disabling it (by including the disable statement), and not actually having IS-IS run on an interface (by including the passive statement) are mutually exclusive states.

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