Priority Commands 4

Default Setting

This switch supports Class of Service by using eight priority queues, with Weighted Round Robin queuing for each port. Eight separate traffic classes are defined in IEEE 802.1p. The default priority levels are assigned according to recommendations in the IEEE 802.1p standard as shown below.

Table 4-64 Default CoS Priority Levels

Queue

0

1

2

3

4

5

6

7

 

 

 

 

 

 

 

 

 

Priority

2

0

1

3

4

5

6

7

 

 

 

 

 

 

 

 

 

Command Mode

Interface Configuration (Ethernet Ports 1-8, Port Channel)

Command Usage

•CoS values assigned at the ingress port are also used at the egress port.

•This command sets the CoS priority for all interfaces.

Example

The following example shows how to change the CoS assignments to a one-to-one mapping:

Console(config)#interface ethernet 1/1

Console(config-if)#queue cos-map 0 0

Console(config-if)#queue cos-map 1 1

Console(config-if)#queue cos-map 2 2

Console(config-if)#exit

Console#show queue cos-map ethernet 1/1

Information of Eth 1/1

Traffic Class : 0 1 2 3 4 5 6 7

Priority Queue: 0 1 2 3 4 5 6 7

Console#

Related Commands

show queue cos-map(4-190)

show queue mode

This command shows the current queue mode.

Default Setting

None

Command Mode

Privileged Exec

Example

Console#sh queue mode

Wrr status: Enabled

Console#

4-189