Priority-Queue - Cisco 3020 - Catalyst Blade Switch Command Reference Manual
Cisco catalyst blade switch 3020 for hp command reference, rel. 12.2(25)sef1
Hide thumbs
Also See for 3020 - Cisco Catalyst Blade Switch:
- Configuration manual (712 pages) ,
- Release note (54 pages) ,
- Getting started manual (37 pages)
Table of Contents
Advertisement
priority-queue
priority-queue
Use the priority-queue interface configuration command to enable the egress expedite queue on a port.
Use the no form of this command to return to the default setting.
Syntax Description
out
Defaults
The egress expedite queue is disabled.
Command Modes
Interface configuration
Command History
Release
12.2(25)SEF
Usage Guidelines
When you configure the priority-queue out command, the shaped round robin (SRR) weight ratios are
affected because there is one fewer queue participating in SRR. This means that weight1 in the srr-queue
bandwidth shape or the srr-queue bandwidth shape interface configuration command is ignored (not
used in the ratio calculation). The expedite queue is a priority queue, and it is serviced until empty before
the other queues are serviced.
Follow these guidelines when the expedite queue is enabled or the egress queues are serviced based on
their SRR weights:
•
•
•
Examples
This example shows how to enable the egress expedite queue when the SRR weights are configured. The
egress expedite queue overrides the configured SRR weights.
Switch(config)# interface gigabitethernet0/22
Switch(config-if)# srr-queue bandwidth shape 25 0 0 0
Switch(config-if)# srr-queue bandwidth share 30 20 25 25
Switch(config-if)# priority-queue out
This example shows how to disable the egress expedite queue after the SRR shaped and shared weights
are configured. The shaped mode overrides the shared mode.
Switch(config)# interface gigabitethernet0/22
Switch(config-if)# srr-queue bandwidth shape 25 0 0 0
Cisco Catalyst Blade Switch 3020 for HP Command Reference
2-242
priority-queue out
no priority-queue out
Enable the egress expedite queue.
Modification
This command was introduced.
If the egress expedite queue is enabled, it overrides the SRR shaped and shared weights for queue 1.
If the egress expedite queue is disabled and the SRR shaped and shared weights are configured, the
shaped mode overrides the shared mode for queue 1, and SRR services this queue in shaped mode.
If the egress expedite queue is disabled and the SRR shaped weights are not configured, SRR
services the queue in shared mode.
Chapter 2
Cisco Catalyst Blade Switch 3020 for HP Cisco IOS Commands
OL-8916-01
Advertisement
Table of Contents
