Selecting the queue mode, Selecting the queue mode -173, Figure 3-74 queue mode -172 – SMC Networks TIGERSWITCH SMC6752AL2 User Manual

Page 220: Command attributes

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C

ONFIGURING

THE

S

WITCH

3-172

Selecting the Queue Mode

You can set the switch to service the queues based on a strict rule that
requires all traffic in a higher priority queue to be processed before lower
priority queues are serviced, or use Weighted Round-Robin (WRR)
queuing that specifies a relative weight of each queue. WRR uses a
predefined relative weight for each queue that determines the percentage
of service time the switch services each queue before moving on to the
next queue. This prevents the head-of-line blocking that can occur with
strict priority queuing.

Command Attributes

WRR - Weighted Round-Robin shares bandwidth at the egress ports
by using scheduling weights 1, 2, 4, 6 for queues 0 through 3
respectively. (This is the default selection.)

Strict - Services the egress queues in sequential order, transmitting all
traffic in the higher priority queues before servicing lower priority
queues.

Web – Click Priority, Queue Mode. Select Strict or WRR, then click Apply.

Figure 3-74 Queue Mode

CLI – The following sets the queue mode to strict priority service mode.

Console(config)#queue mode wrr

4-223

Console(config)#exit
Console#show queue mode

4-227

Queue mode: wrr
Console#

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