Mls qos queue-set output threshold – Dell POWEREDGE M1000E User Manual

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Cisco Catalyst Blade Switch 3130 and 3032 for Dell Command Reference

OL-13271-03

Chapter 2 Cisco Catalyst Blade Switch 3130 and 3032 for Dell Cisco IOS Commands

mls qos queue-set output threshold

mls qos queue-set output threshold

Use the mls qos queue-set output threshold global configuration command on the switch stack or on
a standalone switch 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.

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]

Syntax Description

Defaults

When quality of service (QoS) is enabled, WTD is enabled.

Table 2-9

shows the default WTD threshold settings.

Command Modes

Global configuration

Command History

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.

queue-id

Specific queue in the queue-set on which the command is performed. The
range is 1 to 4.

drop-threshold1
drop-threshold2

Two WTD thresholds expressed as a percentage of the allocated memory of
the queue. The range is 1 to 3200 percent.

reserved-threshold

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.

maximum-threshold

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 3200 percent.

Table 2-9

Default Egress Queue WTD Threshold Settings

Feature

Queue 1

Queue 2

Queue 3

Queue 4

WTD drop threshold 1

100 percent

200 percent

100 percent

100 percent

WTD drop threshold 2

100 percent

200 percent

100 percent

100 percent

Reserved threshold

50 percent

100 percent

50 percent

50 percent

Maximum threshold

400 percent

400 percent

400 percent

400 percent

Release

Modification

12.2(40)EX1

This command was introduced.

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