Disables adjacency formation and advertisements on an Intermediate System-to-Intermediate System (IS-IS) interface.
Adjacency formation and advertisements is disabled on loopback interfaces. Adjacency formation and advertisements is enabled on all other interfaces.
Interface subtype configuration mode
IS-IS is supported only on devices based on the DNX chipset family. For a list of such devices, see "Supported Hardware".
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.
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