# reference-bandwidth

#### Syntax

reference-bandwidth refBandwidth

no reference-bandwidth

#### Release Information

Command introduced in JunosE Release 8.0.0.

#### Description

Configures a reference bandwidth on which the default routing metric for an IS-IS interface is based in the absence of a configured metric. The default metric is calculated as the reference bandwidth divided by the interface’s bandwidth. The no version removes the reference bandwidth.

#### Options

- refBandwidth—Number of bits per second, in the range 1000–1000000000000

#### Mode

Router Configuration