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# tunnel mpls bandwidth

#### Syntax

tunnel mpls [ traffic-eng ] bandwidth bandwidth

no tunnel mpls [ traffic-eng ] bandwidth

#### Release Information

Command introduced before JunosE Release 7.1.0.

#### Description

Specifies the bandwidth required for the tunnel. The no version removes the bandwidth constraint from the tunnel.

When the bandwidth constraint is configured, MPLS automatically creates and attaches a QoS profile to the tunnel to enforce the bandwidth reservation. The QoS profile creates a scheduler node at the LSP level, with a scheduler profile that has an assured rate corresponding to the reserved bandwidth. The QoS profile also creates queues above the scheduler node so that traffic of a particular class will be subject to the scheduler node. If no queue are created at the LSP level for a particular class, the traffic of that class enters that class's queue at a lower level, bypassing the bandwidth reservation enforcement.

#### Options

- traffic-eng—Specifies optional keyword for compatibility with non–E Series implementations
- bandwidth—Amount of bandwidth required for the tunnel in kilobits per second, in the range 0–4294967295; default value is 0

#### Mode

Interface Configuration, Tunnel Profile Configuration

#### Published: 2011-01-07

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