From: Tarun Pahuja (pahujat@gmail.com)
Date: Tue May 29 2007 - 12:23:56 ART
Definitely Match another criteria as Scott suggested.
http://www.cisco.com/univercd/cc/td/doc/solution/esm/qossrnd.pdf
http://www.cisco.com/en/US/tech/tk543/tk759/technologies_white_paper09186a00801348bc.shtml
Thanks,
Tarun Pahuja
CCIE#7707(R&S,Security,SP,Voice,Storage),CCSI
On 5/29/07, Scott Morris <smorris@ipexpert.com> wrote:
>
> If you are going THAT vague, should you not include things like skinny as
> well? :)
>
> There reaches a time where too much detail begins to make less and less
> sense. In the actual construction of a voice call, what pieces take
> place?
> Or more importantly, what pieces take place where applying a QoS guarantee
> would truly make sense? (e.g. for tcp/1720, it would not make any sense)
>
> Whether you define it as simply udp 16384 - 32767 or as RTP protocol in
> the
> same range will typically depend on the environment you are applying
> things
> in. I would likely match some other criteria as well to not accidently
> cover too much (some random, rampant audio stream or gaming applicaton?)
>
> But first look at the anatomy of a phone call. This will likely lead you
> to
> answer your own question. To satisfy the paranoia level though, the
> proctor
> is always around for clarification.
>
>
> Scott Morris, CCIE4 (R&S/ISP-Dial/Security/Service Provider) #4713, JNCIE
> #153, CISSP, et al.
> CCSI/JNCI-M/JNCI-J
> IPexpert VP - Curriculum Development
> IPexpert Sr. Technical Instructor
> smorris@ipexpert.com
> http://www.ipexpert.com
>
>
>
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
> Avner Izhar
> Sent: Tuesday, May 29, 2007 12:50 AM
> To: James Russell; ccielab@groupstudy.com
> Subject: RE: QoS VoIP question
>
> Both will probably do, but in the real lab, with that sort of general
> request, I'd go to the proctor to reassure my understanding.
>
> -------------------------------------------
> Regards,
> Avner Izhar
> Technical Instructor
> CCIE #15999 (Voice)
> Voice: (702) 968-5100
> Fax: (702) 446-8012
> E-mail: aizhar@ccbootcamp.com
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>
> ________________________________
>
> From: nobody@groupstudy.com on behalf of James Russell
> Sent: Mon 5/28/2007 7:10 PM
> To: ccielab@groupstudy.com
> Subject: QoS VoIP question
>
>
>
> Group,
>
> Apparently, my search-fu is not working. I've been doing some labs, and
> it
> seems like every time they mention matching voice or VoIP traffic for QoS,
> they use different solutions each time. Sometimes, they just "match ip
> rtp
> 16384 16383". Others, they have an access list like:
>
> ip access-list extended VoIP
> permit tcp any any eq 1720
> permit udp any <sometimes a range appears here> any range 16834 32767
>
> The TCP port for call setup doesn't always appear, either. My question
> is,
> how do we know what they want? If a question on the lab asks us to "match
> all voice traffic", what path do we take? Do we match ip rtp 16384 16383?
> Match like the access list shown? Match protocol rtp audio?
>
> I apologize if this has been answered before. Like I said, I can't seem
> to
> search too well tonight.
>
>
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