Re: mls Qos

I don't think I'd advise this as "one of those commands".

Sorry. Maybe my understanding of mls qos is not what it should be.

However, if turned on globally and no ports are configured with regard to
qos...

What happens?

Now if the values such as dscp or cos are rewritten to zero or just zero'd
out - is this desirable?

Again, not a command I'd use unless I know why I'm using it and where I
intend to affect other ports (trunks, etherchannels, access ports, etc).

If anyone needs a good reference for this command and its usage allow me to
suggest the SRND on QoS version 3.3.

If anyone has been to Global Knowledge's course call Advanced QoS, I think
it also does a good job of explaining the SRND listed above in an entire
End-to-End Framework.

Hey try it yourself and see what happens for yourself. If you want to
effectively make null the values from attached devices.. then enable mls
qos and forget to trust things like ports attached to your IP Phones.

However, don't "call" about the quality issues that might arise from this
adventure.

:)

On Sun, Jul 26, 2009 at 12:43 PM, Anthony Sequeira <asequeira_at_ine.com>wrote:

> Yeah, this is definitely one of those commands that you should insert in
> the configuration whenever you are in doubt. It should not penalize you if
> in fact it was not required.
>
> Also, thinking ahead to troubleshooting Cisco gear, you can definitely
> envision this as one that would be missing from a pre-configured switch.
> :-)
>
> Warmest Regards,
>
> Anthony J. Sequeira, CCIE #15626
> http://www.INE.com <http://www.ine.com/>
>
> Test your Core Knowledge today!
> Q: Four NAT terms are used to describe IP addresses in a NAT scenario. The
> address of HostB (an outside host) as it is seen on the outside network is
> typically referred to as which term?
> A: The Outside Global Address
> More Info:
> http://www.cisco.com/en/US/tech/tk648/tk361/technologies_tech_note09186a0080094831.shtml
>
>
>
> On Jul 26, 2009, at 1:07 AM, kaniyath minha wrote:
>
> Dear
>>
>> where mls qos should enable and where it is not required..its confusing
>> me.
>>
>> Is Police require it or not?
>>
>> please give in detail.
>>
>> thanks and regards
>>
>>
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Received on Sun Jul 26 2009 - 18:26:34 ART