RE: QoS VoIP question

From: Avner Izhar (aizhar@ccbootcamp.com)
Date: Tue May 29 2007 - 01:50:09 ART


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.

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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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