Configuring The Egress Queues; Configuring Cos Priority Queues - Cisco Catalyst 2950 Software Configuration Manual

Chapter 29 Configuring QoS
This example shows how the DSCP values 26 and 48 are mapped to CoS value 7. For the remaining
DSCP values, the DSCP-to-CoS mapping is the default.
Switch(config)# mls qos map dscp-cos 26 48 to 7
Switch(config)# exit
Switch# show mls qos maps dscp-cos
Dscp-cos map:

Configuring the Egress Queues

Note This feature is supported by both the SI and EI.
This section describes how to configure the egress queues:
•
•
•
For more information about the egress queues, see the

Configuring CoS Priority Queues

Beginning in privileged EXEC mode, follow these steps to configure the CoS priority queues:
Command
Step 1 configure terminal
Step 2
wrr-queue cos-map qid cos1...cosn
Step 3
end
Step 4 show wrr-queue cos-map
To disable the new CoS settings and return to default settings, use the no wrr-queue cos-map global
configuration command.
78-11380-12
dscp: 0 8 10 16 18 24 26 32 34 40 46 48 56
-----------------------------------------------
cos: 0 1 1 2 2
Configuring CoS Priority Queues, page 29-37
Configuring WRR Priority, page 29-38
Enabling the Expedite Queue and Configuring WRR Priority, page 29-38
Purpose
Enter global configuration mode.
Specify the queue ID of the CoS priority queue. (Ranges are 1 to 4 where
1 is the lowest CoS priority queue.)
Specify the CoS values that are mapped to the queue id.
Default values are as follows:
CoS Value
0, 1
2, 3
4, 5
6, 7
Return to privileged EXEC mode.
Display the mapping of the CoS priority queues.
3 7 4 4 5 5 7 7
"Egress CoS Queues" section on page
CoS Priority Queues
1
2
3
4
Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide
Configuring Standard QoS
29-9.
29-37