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Map qos cosp – Allied Telesis AT-S62 User Manual

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Chapter 16: Quality of Service (QoS) Commands

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MAP QOS COSP

Syntax

map qos cosp=priority-number qid=queue-number

Parameters

cosp

Specifies the Class of Service (CoS) priority level. The
CoS priority levels are 0 through 7, with 0 as the
lowest priority and 7 as the highest. You can assign
more than one priority to an egress queue.

qid

Specifies the egress queue number. The egress
queues are numbered 0 through 3, with queue 0 as
the lowest priority and 3 as the highest.

Description

This command maps CoS priorities to port egress queues. You must
specify both the priority and the queue ID. You can assign more than
one priority to an egress queue. Table 3 lists the default mappings
between the eight CoS priority levels and the four egress queues of a
switch port:

Examples

The following command maps priorities 4 and 5, to egress queue 3:

map qos cosp=4,5 qid=3

Table 3 Default Mappings of IEEE 802.1p Priority Levels to Priority

Queues

IEEE 802.1p Priority Level Port Priority Queue

0 or 1

Q0 (lowest)

2 or 3

Q1

4 or 5

Q2

6 or 7

Q3 (highest)