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qosqueue‐scheduler
【Command】
qos queue-scheduler wrr
queue0-weight queue1-weight queue2-weight
queue3-weight
qos queue-schedulerstrict-priority
【View】
Configview
【Parameter】
strict-priority:Strict Priority Scheduling， Applying this model, the system in strict accordance
with the priority queue for scheduling. Only high priority queue is empty, you can schedule
message in the lower priority queues. Dut there are disadvantage about PQ scheduling model ,
when congestion occurs, because there are group keeping long time in the higher priority queue,
the message in the low priority queue would have been without timely scheduling and cause the
corresponding application timeout.
wrr：Weighted round queue scheduling WRR (weighted round robin) model. User needed
to configure a weight that expresses the proportion of access to resourcesfor each
queue when this command is applied.in order to ensure every queue gain suitable
server, user must round among queue according to a weight. Each queue priority
identical but different weights, the greater the weight, the queue scheduling will
be the longer. It can guarantee the queue that has the lowest priority can obtain
a certain bandwidth at least, avoid the message of low priority queue can not to
get service in a longwhen using PQ scheduling.
queue0-weight/queue1-weight/queue2-weight/queue3-weight:Set the weight of each
queue.Systems support four queue (queue 0 to queue 3), queue 0is corresponding vlan
priority 0 and 1, queue 1 is corresponding vlan priority queue 2 and 3, queue 2
is corresponding vlan priority queue 4 and 5, queue 3 is corresponding vlan priority
queue 6 and 7.
【Description】
queue-schedulerqueue scheduling mode, that needs to be from the same port to send out a
message into multiple queue between the queue and queue scheduling and determines which starts
to send message queue and which sends message queue later ,needs Command to configure
system.user uses this command when the user needs to choose according to the importance of the
business of different queue scheduling modelto ensure the network congestion when still can
provide QoS guarantee for important business.System will be in accordance with the new
scheduling model forwarding packets in the queue after configuring the queue scheduling mode
successfully.
【Operatingguide】
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