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passive (Protocols IS-IS)

Syntax

passive;

Hierarchy Level

[edit logical-systems logical-system-name protocols isis interface interface-name],[edit logical-systems logical-system-name protocols isis interface interface-name level level-number],[edit logical-systems logical-system-name routing-instances routing-instance-name protocols isis interface interface-name],[edit logical-systems logical-system-name routing-instances routing-instance-name protocols isis interface interface-name level level-number],[edit protocols isis interface interface-name],[edit protocols isis interface interface-name level level-number],[edit routing-instances routing-instance-name protocols isis interface interface-name],[edit routing-instances routing-instance-name protocols isis interface interface-name level level-number]

Release Information

Statement introduced before Junos OS Release 7.4.

Statement introduced in Junos OS Release 9.0 for EX Series switches.

Statement introduced in Junos OS Release 12.1 for the QFX Series.

Description

Advertise the direct interface addresses on an interface or into a level on the interface without actually running IS-IS on that interface or level.

This statement effectively prevents IS-IS from running on the interface. To enable IS-IS on an interface, include the interface statement at the [edit protocols isis] or the [edit routing-instances routing-instance-name protocols isis] hierarchy level. To disable it, include the disable statement at those hierarchy levels. The three states—enabling, disabling, or not running IS-IS on an interface—are mutually exclusive.

Note: Configuring IS-IS on a loopback interface automatically renders it as a passive interface, irrespective of whether the passive statement was used in the configuration of the interface.

If neither passive mode nor the family iso option is configured on the IS-IS interface, then the routing device treats the interface as not being operational, and no direct IPv4/IPv6 routes are exported into IS-IS. (You configure the family iso option at the [edit interfaces interface-name unit logical-unit-number] hierarchy level.)

Default

By default, IS-IS must be configured on an interface or a level for direct interface addresses to be advertised into that level.

Required Privilege Level

routing—To view this statement in the configuration.

routing-control—To add this statement to the configuration.

 

Related Documentation

 

Published: 2013-08-15

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