From: Petr Lapukhov (petr@internetworkexpert.com)
Date: Mon Jun 19 2006 - 16:01:39 ART
Sami,
There are a lot of options here, actually.
Most of times they should give you a *hint* on how to classify and
prioritize voice traffic.
To classify voice traffic (bearer), usually you may use:
1) Match access-list (the most "widely-scoped" method)
2) Match ip rtp (a bit outdate)
3) Match protocol rtp (the most modern way)
4) Match ip precedence/dscp if voice packets are marked already (most
simple)
5) Use "ip rtp priority" with wfq (this is a prioritization technique
at the same time). A bit outdated by MQC but still nice.
To prioritize voice traffic you basically have these options
1) Legacy PQ
2) LLQ (most common)
3) "ip rtp priority/ip rtp reserve" (the latter is quite a bit outdated)
4) Frame-Relay specific options (Per-VC LLQ, or even PIPQ)
HTH,
-- Petr Lapukhov, CCIE #16379 petr@internetworkexpert.comInternetwork Expert, Inc. http://www.InternetworkExpert.com Toll Free: 877-224-8987 Outside US: 775-826-4344
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