Command Line Reference Guide

Intermediate System to Intermediate System (IS-IS) | 803
Usage
Information
You must use the net command to assign a network entity title to enable IS-IS.
Related
Commands
ipv6 router isis
e
Enable the IPv6 IS-IS routing protocol and specify an IPv6 IS-IS process.
Syntax
ipv6 router isis [tag]
To disable IS-IS routing, enter no router isis [tag].
Parameters
Defaults
Not configured.
Command Modes
ROUTER ISIS
Command
History
Usage
Information
You must configure a network entity title (the net command) to specify the area address and the router
system ID.
You must enable routing on one or more interfaces to establish adjacencies and establish dynamic
routing.
Only one IS-IS routing process can be configured to perform Level 2 routing. A level-1-2 designation
performs Level 1 and Level 2 routing at the same time.
Related
Commands
isis circuit-type
e
Configure the adjacency type on interfaces.
Syntax
isis circuit-type {level-1 | level-1-2 | level-2-only}
To return to the default values, enter no isis circuit-type.
Parameters
net Configures an IS-IS network entity title (NET) for the routing process.
router isis Enables the IS-IS routing protocol.
tag
(OPTIONAL) This is a unique name for a routing process. A null tag is assumed if the tag option is
not specified. The tag name must be unique for all IP router processes for a given router.
Version 7.5.1.0 Introduced on E-Series
net Configure an IS-IS network entity title (NET) for a routing process.
is-type Assign a type for a given area.
level-1
You can form a Level 1 adjacency if there is at least one common area address between this
system and neighbors.
You cannot form Level 2 adjacencies on this interface.