Archana,

That is certainly my interpretation: UDP Packet = {[TPKT][MESSAGE][TPKT][MESSAGE] ...}

Paul

----- Original Message ----- From: "Archana Nehru" archie@TRILLIUM.COM To: ITU-SG16@mailbag.cps.intel.com Sent: Tuesday, June 06, 2000 5:24 PM Subject: Question on H.225- Annex G

hi all,

I have a question about prefixing TPKT header to Annex-G messages sent

over

UDP. Refer to section 1.8 of the Annex G specs which states:

" In UDP IP implementations, messages shall also be prefixed with TPKT headers, to enable multiple messages per packet. The UDP packet length

field

shall hold the total length of the payload, including all the messages and their TPKT headers."

My interpretation of the above paragraph is the following:

1. ALL Annex-G messages (going over UDP) MUST be prefixed with TPKT headers.

2. One UDP packet can contain multiple Annex-G messages and each one of

these messages will have its OWN SEPARATE TPKT HEADER.

Is this interpretation correct?

I appreciate any help on this.

Regards Archana

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