Mls Qos Srr-Queue Input Priority-Queue - Cisco Catalyst 3030 Command Reference Manual

Chapter 2 Cisco Catalyst Blade Switch 3030 Cisco IOS Commands

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 queue-id
bandwidth weight
Defaults
The priority queue is queue 2, and 10 percent of the bandwidth is allocated to it.
Command Modes Global configuration
Command History Release
12.2(25)SEE
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.
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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.
mls qos srr-queue input priority-queue
Cisco Catalyst Blade Switch 3030 Command Reference
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