3560 srr ingress que configuration

From: andrew <andrew.coates_at_internode.on.net>
Date: Wed, 1 Jul 2009 23:00:31 +1000

Hi all,

 

I have a question about the priority queue function within ingress queueing
on the 3560, first off I will take a section from the doc cd:

 

http://www.cisco.com/en/US/customer/docs/switches/lan/catalyst3560/software/
release/12.2_25_se/configuration/guide/swqos.html#wp1065146

 

SRR services the priority queue for its configured weight as specified by
the bandwidth keyword in the mls qos srr-queue input priority-queue queue-id
bandwidth weight global configuration command. Then, SRR shares the
remaining bandwidth with both ingress queues and services them as specified
by the weights configured with the mls qos srr-queue input bandwidth weight1
weight2 global configuration command.

 

Now assuming the following with shared round robin:

 

CAT-2#show mls qos input-queue

Queue : 1 2

----------------------------------------------

buffers : 60 40

bandwidth : 35 35

priority : 0 30

threshold1: 50 30

threshold2: 75 75

CAT-2#

 

Does this mean that queue two gets 30% of bandwidth in a priority fasion
(serviced first) and then the remaining 70% is shared between both queues in
a round robin fasion?

 

I haven't seen it implicitly spelled out anywhere so I just want to confirm.

 

 

Cheers

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Received on Wed Jul 01 2009 - 23:00:31 ART

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