From: Jonathan V Hays (jhays@jtan.com)
Date: Mon Jul 21 2003 - 11:28:05 GMT-3
If you are going to specify TCP port 1720 you might also specify TCP
ports 11000 11999 using "range 11000 11999" for H.245, which is also
part of standard connect call setup under the H.323 architecture.
TCP port 1720 is only part of call setup and could be said (more
accurately) to be used by H.225.
The ITU H.323 specification describes an architecture that defines a set
of specific functions for framing and call control, codecs, and data
communications. The H.323 framing and call control functions are in turn
specified by the H.225 specification. H.225 defines the details of the
RTP and RTCP functions, such as logical framing, sequence numbering,
error detection and so forth.
H.245 provides the call control mechanism that allows H.323-compatible
terminals interconnection and specifies the signaling, flow control, and
channeling for messages, requests, and commands.
From "Cisco AVVID Network Infrastructure Enterprise Quality of Service
Design" found at
http://www.cisco.com/en/US/netsol/netwarch/ns19/ns24/networking_solution
s_packages_list.html
<quote>
H.323 Protocol
Cisco CallManager communicates with H.323 gateways using TCP ports 1720
(H.225) and 11xxx
(H.245).
</quote>
Also, for everyone's future reference, the following document lists
other possible ports, if you are using other types of voice traffic.
http://www.cisco.com/warp/public/788/voice-qos/voip-ov-fr-qos.html#topic
6
<quote>
The following list serves as reference for the ports used by VoIP
signaling and control channels:
H.323/H.225 = TCP 1720
H.323/H.245 = TCP 11xxx (Standard Connect)
H.323/H.245 = TCP 1720 (Fast Connect)
H.323/H.225 RAS = TCP 1719
SCCP = TCP 2000-2002 (CM Encore)
ICCP = TCP 8001-8002 (CM Encore)
MGCP = UDP 2427, TCP 2428 (CM Encore)
SIP= UDP 5060, TCP 5060 (configurable)
</quote>
Hope that clarifies.
Jonathan
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Snow, Tim
Sent: Monday, July 21, 2003 12:20 AM
To: 'Rivalino YMT.'; ccielab@groupstudy.com
Subject: RE: Voice and Data packet in CBWFQ
Assuming that your voice traffic is marked with a precedence of 5, then
yes,
your solution will work. However, you'll also be putting any other
traffic
that's marked with critical in that same class.
I prefer to use an ACL matching ports 16384 through 32767 for RTP. Keep
in
mind that will get the RTP and RTCP port numbers. You might also want
to
put tcp port 1720 in the "control" secion as it's used for h323 call
setup.
Tim
-----Original Message-----
From: Rivalino YMT. [mailto:rivel131@cyberlib.itb.ac.id]
Sent: Monday, July 21, 2003 12:22 AM
To: ccielab@groupstudy.com
Subject: Voice and Data packet in CBWFQ
Hi groups,
How to match voice packet and data packet in CBWFQ?
class-map VOICE
match access-group 100
class-map DATA
match access-group 101
!
access-list 100 permit ip any any precedence critical
access-list 101 ???(I have no idea)?????
Can we use : access-list 101 deny ip any any precendence critical
access-list 101 permit ip any any ?
Thanks for your help,
Rivalino
This archive was generated by hypermail 2.1.4 : Wed Aug 06 2003 - 06:52:47 GMT-3