Mls Qos Srr-Queue Input Priority-Queue - Cisco Catalyst 2960 Command Reference Manual

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mls qos srr-queue input priority-queue

Use the mls qos srr-queue input priority-queue global configuration command to configure the ingress

priority queue and to guarantee bandwidth on the internal ring if the ring is congested. Use the no form

of this command to return to the default setting.

Syntax Description

bandwidth weight

The priority queue is queue 2, and 10 percent of the bandwidth is allocated to it.

Command Modes

Global configuration

Command History

Usage Guidelines

You should use the priority queue only for traffic that needs to be expedited (for example, voice traffic,

which needs minimum delay and jitter).

The priority queue is guaranteed part of the bandwidth on the internal ring, which reduces the delay and

jitter under heavy network traffic on an oversubscribed ring (when there is more traffic than the

backplane can carry, and the queues are full and dropping frames).

Shaped round robin (SRR) services the priority queue for its configured weight as specified by the

bandwidth keyword in the mls qos srr-queue input priority-queue queue-id bandwidth weight global

configuration command. Then SRR shares the remaining bandwidth with both ingress queues and

services them as specified by the weights configured with the mls qos srr-queue input bandwidth

weight1 weight2 global configuration command.

To disable priority queueing, set the bandwidth weight to 0, for example, mls qos srr-queue input

priority-queue queue-id bandwidth 0.

Catalyst 2960 Switch Command Reference

mls qos srr-queue input priority-queue queue-id bandwidth weight

no mls qos srr-queue input priority-queue queue-id

Ingress queue ID. The range is 1 to 2.

Bandwidth percentage of the internal ring. The range is 0 to 40.

Modification

This command was introduced.

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