# atm cac

#### Syntax

[ no ] atm cac [ subscriptionBandwidth ] [ ubr ubrWeight ]

#### Release Information

Command introduced before JunosE Release 7.1.0.

#### Description

Enables CAC on the ATM interface. If the subscription limit or UBR weight parameters are set to zero, the router uses the effective port bandwidth as the subscription bandwidth. The effective bandwidth varies according to line module. The no version disables CAC on the interface.

| Note: If you modify one of these parameters after CAC is enabled, you must modify both parameters. Otherwise, the parameter not specified reverts to its default value.

#### Options

- subscriptionBandwidth—Maximum allowable bandwidth on this port in the range 0–2147482647 Kbps; default value is 0
- ubrWeight—Bandwidth associated with UBR and UBR-PCR connections in the range 0–2147482647 Kbps; default value is 0

#### Mode

Interface Configuration