RE: Matching Voice Signalling traffic

From: Kelly, Russell G (Russell_Kelly@eu1.bp.com)
Date: Thu Sep 30 2004 - 12:44:46 GMT-3


Btw, by match do you mean QoS values? The QoS match dscp values change
with every revision of Callmanager, but here are some match QoS
statement examples for a DSL user:

class-map match-all signalling
  description Match Voice Signalling Traffic
  match ip dscp af31
class-map match-all voice
  description Match Voice Bearer Traffic
  match ip dscp ef
!
!
policy-map voice
  class voice
   priority 150
  class signalling
   bandwidth 8
  class class-default
   bandwidth 16
   random-detect
!

Cheers
Russ

-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
David Duncon
Sent: 30 September 2004 14:02
To: ccielab@groupstudy.com
Subject: Matching Voice Signalling traffic

Hello Group,

I am little unsure on the best way to *match* the Signaling traffic.

In the recent past I have a seen a config where the author has used to
match
the destination port greater than TCP 3000 , equal to TCP 2000 & 2748.
And
also equal to TCP 1720.

Can some please explain why these ports are necessary to match signaling

traffic. I was impression that signaling only uses TCP 1720 :(

And also like RTP using the *even* ports from 16384 to 32768 , I was
impression that Signaling uses *odd* ports in the same range ??

I appreciate any clarification on the above queries :-)

Thanks in advance

David.



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