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mls qos queue-set output threshold
mls qos queue-set output threshold
Use the mls qos queue-set output threshold global configuration command to configure the weighted
tail-drop (WTD) thresholds, to guarantee the availability of buffers, and to configure the maximum
memory allocation to a queue-set (four egress queues per port). Use the no form of this command to
return to the default setting.
Syntax Description
qset-id
queue-id
drop-threshold1
drop-threshold2
reserved-threshold
maximum-threshold
Defaults
When quality of service (QoS) is enabled, WTD is enabled.
Table 2-9
Table 2-9
Feature
WTD Drop Threshold 1
WTD Drop Threshold 2
Reserved Threshold
Maximum Threshold
Command Modes
Global configuration
Command History
Release
12.1(19)EA1
Catalyst 3560 Switch Command Reference
2-252
mls qos queue-set output qset-id threshold queue-id drop-threshold1 drop-threshold2
reserved-threshold maximum-threshold
no mls qos queue-set output qset-id threshold [queue-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.
Specific queue in the queue-set on which the command is performed. The
range is 1 to 4.
Two WTD thresholds expressed as a percentage of the queue's allocated
memory. The range is 1 to 400 percent.
Amount of memory to be guaranteed (reserved) for the queue and expressed
as a percentage of the allocated memory. The range is 1 to 100 percent.
Enable a queue in the full condition to get more buffers than are reserved for
it. This is the maximum memory the queue can have before the packets are
dropped. The range is 1 to 400 percent.
shows the default WTD threshold settings.
Default Egress Queue WTD Threshold Settings
Modification
This command was introduced.
Chapter 2
Queue 1
Queue 2
100 percent
200 percent
100 percent
200 percent
50 percent
100 percent
400 percent
400 percent
Catalyst 3560 Switch Cisco IOS Commands
Queue 3
Queue 4
100 percent
100 percent
100 percent
100 percent
50 percent
50 percent
400 percent
400 percent
78-16405-05
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