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Catalyst 3560 Switch Command Reference
78-16405-05
Chapter 2 Catalyst 3560 Switch Cisco IOS Commands
mls qos queue-set output buffers
mls qos queue-set output buffers
Use the
mls qos queue-set output buffers
global configuration command to allocate buffers to a
queue-set (four egress queues per port). Use the
no
form of this command to return to the default setting.
mls qos queue-set output
qset-id
buffers
allocation1 ... allocation4
no mls qos queue-set output
qset-id
buffers
Syntax Description
Defaults
All allocation values are equally mapped among the four queues (25, 25, 25, 25). Each queue has 1/4 of
the buffer space.
Command Modes
Global configuration
Command History
Usage Guidelines
Specify four allocation values, and separate each with a space.
Allocate buffers according to the importance of the traffic; for example, give a large percentage of the
buffer to the queue with the highest-priority traffic.
To configure different classes of traffic with different characteristics, use this command with the
mls qos
queue-set output
qset-id
threshold
global configuration command.
Note
The egress queue default settings are suitable for most situations. You should change them only when
you have a thorough understanding of the egress queues and if these settings do not meet your QoS
solution.
qset-id
ID of the queue-set. Each port belongs to a queue-set, which defines all the
characteristics of the four egress queues per port. The range is 1 to 2.
allocation1 ...
allocation4
Buffer space allocation (percentage) for each queue (four values for queues 1 to 4).
For
allocation1
,
allocation3
, and
allocation4
, the range is 0 to 99. For
allocation2
,
the range is 1 to 100 (including the CPU buffer). Separate each value with a space.
Release
Modification
12.1(19)EA1
This command was introduced.
12.2(20)SE
The range for
allocation1
,
allocation3
, and
allocation4
changed from 0 to
100 to 0 to 99. The range for
allocation2
changed from 20 to 100 to 1 to 100.
