isis passive

Disables adjacency formation and advertisements on an Intermediate System-to-Intermediate System (IS-IS) interface.

Syntax

isis passive
no isis passive

Command Default

Adjacency formation and advertisements is disabled on loopback interfaces. Adjacency formation and advertisements is enabled on all other interfaces.

Modes

Interface subtype configuration mode

Usage Guidelines

IS-IS is supported on the Extreme 8820, SLX 9740, SLX 9640, and SLX 9540 devices only.

A device advertises an IS-IS interface to its area regardless of whether adjacency formation is enabled.

The no form of the command re-enables adjacency formation and advertisements on the IS-IS interface.

Examples

The following example disables adjacency formation and advertisements on an Ethernet interface.

device#configure terminal
device(config)# interface ethernet 2/2
device(conf-if-eth-2/2)# isis passive

The following example enables adjacency formation and advertisements on a loopback interface.

device#configure terminal
device(config)# interface looback 1
device(config-Loopback-1)# no isis passive