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RE: Definition of VoIP traffic posted 11/26/2006
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Mike,
In my QoS policy I specify different levels of QoS
In the lab the may ask you to configure dif levels according to traffiic type.
The RTP ports are 16384 to 32768, but in addtion they could ask you to configure WFQ or LLC.
It will depend on the requirement if any addtional step is required for voice traffic EF or signaling traffic AF31.


Hth



From: Udo <ccie_groupstudy@xxxxxxxx>
To: Jojo jojo <barrerj1@xxxxxxxxxxx>
CC: mzuo@xxxxxxxxxxx, ccielab@xxxxxxxxxxxxxx
Subject: RE: Definition of VoIP traffic
Date: Sun, 26 Nov 2006 07:38:30 +0100

Hi JoJo,

do you think this is riht for match voice traffic ?
In many solution I found only udp ports starting from 16384 to 32768 !?
So when the task ask for match _all_ voice traffic ..what is right ?

greetz
udo
> Michael,
>
> There are specific port numbers you have to memorized for voice traffic and
> EF and control traffic AF31.
> Look below
> HTH
> JoJo
>
> class-map match-any VOICE
> match ip dscp ef
> match access-group 102
> !
> !
> policy-map IPT
> class VOICE
> priority 560
> class class-default
> fair-queue
> policy-map IPT-HIGH
> class VOICE
> priority 768
> class class-default
> fair-queue
> policy-map IPT-HIGHER
> class VOICE
> priority 1024
> class class-default
> fair-queue
> !
> access-list 102 permit udp any any range 16384 32768
> access-list 102 permit tcp any eq 2000 any
> access-list 102 permit ip any any precedence critical
> access-list 102 permit tcp any eq 1720 any
> access-list 102 permit ip any any dscp af31
>
>
>
>
> >From: "Michael Zuo" <mzuo@xxxxxxxxxxx>
> >Reply-To: "Michael Zuo" <mzuo@xxxxxxxxxxx>
> >To: "Cisco certification" <ccielab@xxxxxxxxxxxxxx>
> >Subject: Definition of VoIP traffic
> >Date: Sat, 25 Nov 2006 18:33:38 -0800
> >
> >Hi Group,
> >
> >
> >
> >IEWB lab 18 has sections where QoS needs to identify VoIP traffic. Are
> >the protocol/port number used by VoIP always fixed (like FTP)? Ie, is
> >VoIP always on TCP port 1720 and UDP port 16384 to 32767?
> >
> >
> >
> >I'd like to know if this is something I have to memorize by heart for
> >the lab, or this is something I need to ask the proctor if not specify
> >in the requirements?
> >
> >
> >
> >Is there any other protocol/port numbers we are supposed to know in
> >addition to the well known ones such as HTTP/FTP/SSH and so on? It
> >seems a little scary that I could lose a few points for a security/QoS
> >related question just because I don't know what TCP/UDP ports a protocol
> >is running on (or even worse, miss a port number)....
> >
> >
> >
> >
> >
> >Any advice?
> >
> >
> >
> >Thanks a lot.
> >
> >_______________________________________________________________________
> >Subscription information may be found at:
> >http://www.groupstudy.com/list/CCIELab.html
>
>
> >From: "Michael Zuo" <mzuo@xxxxxxxxxxx>
> >Reply-To: "Michael Zuo" <mzuo@xxxxxxxxxxx>
> >To: "Cisco certification" <ccielab@xxxxxxxxxxxxxx>
> >Subject: Definition of VoIP traffic
> >Date: Sat, 25 Nov 2006 18:33:38 -0800
> >
> >Hi Group,
> >
> >
> >
> >IEWB lab 18 has sections where QoS needs to identify VoIP traffic. Are
> >the protocol/port number used by VoIP always fixed (like FTP)? Ie, is
> >VoIP always on TCP port 1720 and UDP port 16384 to 32767?
> >
> >
> >
> >I'd like to know if this is something I have to memorize by heart for
> >the lab, or this is something I need to ask the proctor if not specify
> >in the requirements?
> >
> >
> >
> >Is there any other protocol/port numbers we are supposed to know in
> >addition to the well known ones such as HTTP/FTP/SSH and so on? It
> >seems a little scary that I could lose a few points for a security/QoS
> >related question just because I don't know what TCP/UDP ports a protocol
> >is running on (or even worse, miss a port number)....
> >
> >
> >
> >
> >
> >Any advice?
> >
> >
> >
> >Thanks a lot.
> >
> >_______________________________________________________________________
> >Subscription information may be found at:
> >http://www.groupstudy.com/list/CCIELab.html
>
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