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User’s Manual of SGSD-1022 / SGSD-1022P
SGSW-2840 / SGSW-2840P
621
Example
This example shows how to assign WRR weights to priority queues 0 - 2:
Console(config)#queue bandwidth 6 9 12
Console(config)#
Related Commands
queue mode
show queue bandwidth
queue cos-map
This command assigns class of service (CoS) values to the priority queues (i.e., hardware output queues 0 - 3). Use the no form
set the CoS map to the default values.
Syntax
queue cos-map queue_id [cos1 ... cosn]
no queue cos-map
• queue_id - The ID of the priority queue.
Ranges are 0 to 3, where 3 is the highest priority queue.
• cos1 .. cosn - The CoS values that are mapped to the queue ID. It is a space-separated list of numbers. The CoS
value is a number from 0 to 7, where 7 is the highest priority.
Default Setting
This switch supports Class of Service by using four 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.
Priority 1,2 0,3 4,5 6,7
Queue 0 1 2 3
Table 5-78 Default CoS Priority Levels
Command Mode
Interface Configuration (Ethernet, Port Channel)
Command Usage
CoS values assigned at the ingress port are also used at the egress port.
Example
The following example shows how to change the CoS assignments:
Console(config)#interface ethernet 1/1