RE: Matching VOIP packets in a class map

From: Scott Morris (swm@emanon.com)
Date: Fri May 12 2006 - 11:44:48 ART


Because it's not a range as in low-high #.

Emanon-R1(config-route-map)#class-map Who-Knows
Emanon-R1(config-cmap)#match ip rtp ?
  <2000-65535> Lower bound of UDP destination port

Emanon-R1(config-cmap)#match ip rtp 16384 ?
  <0-16383> Range of UDP ports

Emanon-R1(config-cmap)#match ip rtp 16384 16383 ?
  <cr>

Emanon-R1(config-cmap)#

So you give it your starting point and then the number of ports (e.g. 16384
+ 16383 of them = 16384-32767)

HTH,

 
Scott Morris, CCIE4 (R&S/ISP-Dial/Security/Service Provider) #4713, JNCIE
#153, CISSP, et al.
CCSI/JNCI
IPExpert CCIE Program Manager
IPExpert Sr. Technical Instructor
smorris@ipexpert.com
http://www.ipexpert.com
 
 

-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
CCIEin2006
Sent: Friday, May 12, 2006 10:33 AM
To: ccielab@groupstudy.com
Subject: Matching VOIP packets in a class map

Hello group,

I am confused about the proper way to match on voice packets in a class map.

According to Odom's QOS book, he often uses the following commands:

class-map match-all voip-rtp
match ip rtp 16384 16383

Is he specifically matching only 16384 and 16383 or is he matching a range?
Why does he place 16383 before 16384?

Thanks



This archive was generated by hypermail 2.1.4 : Thu Jun 01 2006 - 06:33:21 ART