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Re: LAN QoS posted 09/29/2008
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Wow, thanks. This is great. Now I wonder where Petr got this info from :)


On Mon, Sep 29, 2008 at 4:37 AM, Hobbs <deadheadblues@xxxxxxxxx> wrote:

> This is a wonderful explanation.
>
>
> http://blog.internetworkexpert.com/2008/03/03/bridging-the-gap-between-3550-and-3560-qos-part-i/
>
> The answer to your question is in section 2. It's determined by the way it
> was classified (trust cos or trust dscp)
>
> On Sun, Sep 28, 2008 at 12:48 PM, Pavel Bykov <slidersv@xxxxxxxxx> wrote:
>
>> Hi group.
>> My question is:
>> If I have both COS and DSCP fields set, with CoS=3 and DSCP=24, and I have
>> both DSCP and COS output queue maps like so:
>>
>> mls qos srr-queue output cos-map queue 2 3
>> mls qos srr-queue output dscp-map queue 3 24
>>
>> Which output queue will the packet fall in to?
>>
>> I know what will happen if this would be an input (trust option) but there
>> is no such thing as trust on the output, after Internal DSCP has been
>> consulted. So how is it decided in this case?
>>
>> Thanks.
>>
>>
>> P.S.: Interface is trunk and does have 802.1q/802.1p. There are no
>> counters
>> that would show the queue match, for example "show mls qos interface x/x
>> statistics" shows output VALUES, not queues. But i know the values exactly
>> and need to know output queues.
>>
>>
>> --
>> Pavel Bykov
>> -------------------------------------------------
>> Stop the braindumps!
>> http://www.stopbraindumps.com/
>>
>>
>> Blogs and organic groups at http://www.ccie.net
>>
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>


-- 
Pavel Bykov
-------------------------------------------------
Stop the braindumps!
http://www.stopbraindumps.com/