FW: Where H.245 goes - MG or MGC

Tom-PT Taylor taylor at NORTELNETWORKS.COM
Mon Mar 8 13:07:06 EST 1999

Hi Greg,

thanks for pointing that out. I was not aware of TPKT being described in any
ITU-T recommendation. So rather than adding some text to H.225.0 to
define/describe TPKT, it would be better to add explicit references to T.123
in the text of H.225.0 in those places where TPKT is mentioned.


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-----Original Message-----
From: Greg Goodknight [mailto:ggoodkni at CISCO.COM]
Sent: 05 March 1999 20:45
Subject: Re: TPKT in H.225.0

I'm just now plowing through old mail. Sorry to have not caught this thread

TPKT is also defined in T.123 which is called out in H.225.0/2.2

Greg Goodknight
Cisco Systems

-----Original Message-----
From: Derks, Frank <F.Derks at PBC.BE.PHILIPS.COM>
To: ITU-SG16 at mailbag.cps.intel.com <ITU-SG16 at mailbag.cps.intel.com>
Date: Thursday, February 04, 1999 5:17 AM
Subject: Re: TPKT in H.225.0

>Hi Tom,
>I couldn't find it either and I suspect that it couldn't be in because the
>ITU is very reluctant to reference any non-ITU material. Furthermore,
>RFC1006 encompasses a lot more than just the bit(s) that are used for
>H.225.0, so even referring to this RFC does not clarify it all. I think
>work should be spent on this.
>-----Original Message-----
>From: Tom-PT Taylor [mailto:taylor at NORTELNETWORKS.COM]
>Sent: 02 February 1999 22:12
>Subject: Re: TPKT in H.225.0
>I'd swear the reference to RFC1006 used to be in H.225.0 Appendix D, but I
>can't find it there now.
>> -----Original Message-----
>> From: Derks, Frank [SMTP:F.Derks at PBC.BE.PHILIPS.COM]
>> Sent: Tuesday, February 02, 1999 4:05 AM
>> Subject:      Re: TPKT in H.225.0
>> Hi Paul,
>> I received two responses to my question, one from you and one from Tom
>> Taylor. The fact that there are at least two people that know about it
>> (and
>> several dozens more that have actually implemented the protocol stacks),
>> makes it hard to believe that this is an "oversight" in the
>> recommendation.
>> In fact, not knowing about this makes it impossible to implement an
>> interoperable protocol stack! Shouldn't action be taken to get this into
>> the
>> recommendation ASAP (e.g. through the Implementor's Guide)?
>> Regards,
>> Frank
>> -----Original Message-----
>> From: Paul Long [mailto:Plong at SMITHMICRO.COM]
>> Sent: 01 February 1999 18:50
>> Subject: Re: TPKT in H.225.0
>> TPKT is defined in RFC 1006. Not identifying TPKT was an oversight that
>> has
>> never been fixed in the Recommendation.
>> Paul Long
>> Smith Micro Software, Inc.

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