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<DIV><FONT face=Arial color=#0000ff size=2><SPAN class=889212018-13092001>Hi
Vivek</SPAN></FONT></DIV>
<DIV><FONT face=Arial color=#0000ff size=2><SPAN
class=889212018-13092001></SPAN></FONT> </DIV>
<DIV><FONT face=Arial color=#0000ff size=2><SPAN class=889212018-13092001>The
only function of TPKT is to define message boundaries.</SPAN></FONT></DIV>
<DIV><FONT face=Arial color=#0000ff size=2><SPAN class=889212018-13092001>Annex
E has own mechanisms to do this.</SPAN></FONT></DIV>
<DIV><FONT face=Arial color=#0000ff size=2><SPAN class=889212018-13092001>So
basically I think that should be no TPKT header in the Q.931 messages when
used with Annex E.</SPAN></FONT></DIV>
<DIV><FONT face=Arial color=#0000ff size=2><SPAN
class=889212018-13092001></SPAN></FONT><FONT face=Arial color=#0000ff
size=2><SPAN class=889212018-13092001></SPAN></FONT> </DIV>
<DIV><FONT face=Arial color=#0000ff size=2><SPAN
class=889212018-13092001>Sasha</SPAN></FONT></DIV>
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<DIV class=OutlookMessageHeader dir=ltr align=left><FONT face=Tahoma
size=2>-----Original Message-----<BR><B>From:</B> Vivek Kakkar
[mailto:vkakkar@CISCO.COM]<BR><B>Sent:</B> Thursday, September 13, 2001 11:19
AM<BR><B>To:</B> ITU-SG16@MAILBAG.INTEL.COM<BR><B>Subject:</B> H323 Annex E
over UDP and TPKT header<BR><BR></FONT></DIV>Hello, <BR>I wanted to poll the
H323 community regarding the use of TPKT header with H225 message while using
AnnexE transport capability. AnnexE makes the UDP a reliable signaling
channel. H.323 spec talks of using TPKT header with reliable signaling
channel.
<P>What is your interpretation of H323/AnnexE regarding the TPKT header? Does
the TPKT header have a function in this case?
<P>thanks, <PRE>-- vivek
=============================================================
Vivek Kakkar Cisco Systems, Inc.
vkakkar@cisco.com Research Triangle Park, NC
919-392-6975:o USA</PRE>
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