# metric-style transition

#### Syntax

[ no ] metric-style transition [ level-1 | level-2 | level-1-2 ]

#### Release Information

Command introduced before JunosE Release 7.1.0.

#### Description

Configures the router to generate and accept both old-style IS-IS TLVs with narrow (six-bit) metric fields and new-style IS-IS TLVs with wider metric fields. If you issue this command, the value configured with the isis metric command can range from 0–16777215. The no version restores the default value, which is to generate and accept only old-style TLVs with narrow (six-bit) metric fields.

#### Options

- level-1—Configuration applies only to level 1 routing
- level-2—Configuration applies only to level 2 routing
- level-1-2—Configuration applies to both level 1 and level 2 routing

#### Mode

Router Configuration