From: mihai (mihai@ngnpath.com)
Date: Wed Nov 05 2008 - 00:14:17 ARST
I'm trying to figure out how can I take an MQC config and translate it
to srr-queue commands on a cisco 3750 .... for the beginning.
I don't understand how to use buffers / threshold to configure QoS using
the mls qos commands.
MQC I know how to do it and it works more or less ... long discussion
... don't want to go there.
Trying to be more specific ... Cisco 3750 - ES port gig1/1/1
Total output bandwidth - 50Mb
6 classes of service - 1 priority + 4 classes + class-default
bandwidth allocation - doesn't matter as long as total is 50.
MQC config - no problem
mls qos srr-queue config ... it seems I can't figure out how to
configure the buffers and threshold ...
I've gone through the book you mentioned ... tried some config ... but
when I blast the box with IXIA ... my config doesn't work ...
Thank you for your answer.
Darby Weaver wrote:
> Cisco Press End-to-End QoS Network Design is the reference you need.
>
> Let's see
>
> There are a few RFC's as well:
>
> 2474
> 2475
> 2597
> 2598 replaced by 3246
>
> Let's see...
>
> 1. What exactly are you trying to do? In your own words please.
>
> 2. What type of device are we talking about here? Each has different
> commands, features, and limitations.
>
> 3. Have you tried sending interesting traffic (AF11 or AF21) to this port
> and typing "show policy interface g1/1/1" for example to see if you are
> getting the desired effects.
>
> Here's a good ping script:
>
> ping x.x.x.x rep 10000000 time 0 size 1400
>
> And try it from two different devices. You can use your switches to rewrite
> the values to those you are testing against. Maybe use one flow per port on
> a given switch and then ping the destination IP Address.
>
> When you apply your policy map you might want to test it with the "input"
> versus "output" keyword since traffic will be coming inbound.
>
>
> Ping me.. offline... if you need specific examples.
>
>
> Blogs and organic groups at http://www.ccie.net
>
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