# ip router isis

#### Syntax

[ no ] ip router isis [ tag ]

#### Release Information

Command introduced before JunosE Release 7.1.0.

#### Description

Configures an IS-IS routing process for IP on an interface. The no version disables IS-IS for IP on the interface.

#### Options

- tag—Meaningful name for a routing process. If not specified, a null tag is assumed. The name must be unique among all IP router processes for a given router. Use the same text for the argument tag as specified in the router isis command.

#### Mode

Interface Configuration, Subinterface Configuration