Configures the type of adjacency used for an Intermediate System-to-Intermediate System (IS-IS) interface.
Level 1 and Level 2 adjacency is configured by default.
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".
The no form of the command resets the type of adjacency to the default value of Level 1 and Level 2 adjacency.
The following example configures Level 1 adjacency on an IS-IS Ethernet interface.
device# configure terminal device(config)# interface ethernet 1/1 device(config-if-eth-1/1)# isis circut-type level-1