Cisco Catalyst 3550

2-291
Catalyst 3550 Multilayer Switch Command Reference
OL-8566-02
Chapter 2 Catalyst 3550 Switch Cisco IOS Commands
priority-queue
priority-queue
Use the priority-queue interface configuration command to enable the egress expedite queue on a
Gigabit-capable or a 10/100 Ethernet interface. 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 weighted round robin (WRR) weight ratios
are affected because there is one fewer queue participating in WRR. This means that weight4 in the
wrr-queue bandwidth 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.
Examples This example shows how to enable the egress expedite queue:
Switch(config)# interface gigabitethernet0/1
Switch(config-if)# priority-queue out
You can verify your settings by entering the show running-config privileged EXEC command.
Related Commands
out Enable the egress expedite queue.
Release Modification
12.1(6)EA1 This command was introduced.
Command Description
show mls qos interface queueing Displays the queueing strategy (WRR, priority queueing), the
weights corresponding to the queues, and the
CoS-to-egress-queue map.