Re: mls Qos

Yeah - I was overly brief and sloppy with this post - and did a
follow up post attempting to clarify my position.

Thanks for catching this.

Warmest Regards,

Anthony J. Sequeira, CCIE #15626
http://www.INE.com

Test your Core Knowledge today!
Q: What is true about eBGP physical connectivity compared to iBGP?
A: eBGP peers are expected to be directly connected. iBGP peerings are
not expected to be directly connected. There is no need for the
multihop command with iBGP.
More Info: http://www.cisco.com/en/US/tech/tk365/technologies_configuration_example09186a0080093f25.shtml

On Jul 26, 2009, at 6:26 PM, Darby Weaver wrote:

> 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
>
> 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 Mon Jul 27 2009 - 12:43:13 ART