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C
LASS
OF
S
ERVICE
C
ONFIGURATION
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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
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Console(config)#exit
Console#show queue mode
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Queue mode: wrr
Console#
Summary of Contents for 6726AL2 FICHE
Page 2: ......
Page 20: ...CONTENTS xvi ...
Page 24: ...TABLES xx ...
Page 28: ...FIGURES xxiv ...
Page 38: ...INTRODUCTION 1 10 ...
Page 240: ...CONFIGURING THE SWITCH 3 190 ...
Page 502: ...TROUBLESHOOTING B 4 ...
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