From: Jojo jojo (barrerj1@hotmail.com)
Date: Sun Nov 26 2006 - 01:54:33 ART
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@ixiacom.com>
>Reply-To: "Michael Zuo" <mzuo@ixiacom.com>
>To: "Cisco certification" <ccielab@groupstudy.com>
>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@ixiacom.com>
>Reply-To: "Michael Zuo" <mzuo@ixiacom.com>
>To: "Cisco certification" <ccielab@groupstudy.com>
>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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