SMC Networks SMC7724M/VSW manual Queue bandwidth, 126

COMMAND LINE INTERFACE

incoming frame is an IEEE 802.1Q VLAN tagged frame, the IEEE 802.1p User Priority bits will be used.

•This switch provides four priority queues for each port. It is configured to use Weighted Round Robin, which can viewed with the queue bandwidth command. Inbound frames that do not have VLAN tags are tagged with the input port’s default ingress user priority, and then placed in the appropriate priority queue at the output port. The default priority for all ingress ports is zero. Therefore, any inbound frames that do not have priority tags will be placed in queue 0 of the output port. (Note that if the output port is an untagged member of the associated VLAN, these frames are stripped of all VLAN tags prior to transmission.)

Example

The following example shows how to set a default priority on ports 3 to 5:

Console(config)#interface ethernet 1/3

Console (config-if)#switchport priority default 5

queue bandwidth

Use this command to assign weighted round-robin (WRR) weights to the four class of service (CoS) priority queues. Use the no form to restore the default weights.

Syntax

queue bandwidth weight1...weight255 no queue bandwidth

•weight1...weight255 - The ratio of weights for queues 0 - 3 determines the weights used by the WRR scheduler. (Range: 1 - 255)

Default Setting

WRR is disabled. Strict priority is used for default scheduling. Weights 1, 4, 16 and 64 are assigned to queue 0, 1, 2 and 3 respectively.

Command Mode

Global Configuration

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