Cisco Cisco Gigabit Ethernet Switch Module (CGESM) for HP Technical References
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Cisco Gigabit Ethernet Switch Module for the HP p-Class BladeSystem Command Reference Guide
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Chapter 2 CGESM Switch Cisco IOS Commands
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.
Use the no form of this command to return to the default setting.
priority-queue out
no priority-queue out
Syntax Description
Defaults
The egress expedite queue is disabled.
Command Modes
Interface configuration
Command History
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.
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:
their SRR weights:
•
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.
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.
services the queue in shared mode.
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.
egress expedite queue overrides the configured SRR weights.
Switch(config)# interface gigabitethernet0/2
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
out
Enable the egress expedite queue.
Release
Modification
12.2(25)SE1
This command was introduced.