Subject: [Megaco] TCP: H.248 Incomplete Message Handling

From: taneja shashank <[email-masked]>
Date: Mon, 27 Aug 2007 08:13:12 -0700 (PDT)

Hello,
   
  I need some clarification on the issue of handling of partial H.248 messages received in case of TCP transport.
  Since TCP is a byte-stream oriented protocol we may receive an incomplete H.248 message in one TCP PDU. In particular for the text encoding of the message, since the length of the message is not encoded within the H.248 Message it is not possible to know how many more bytes are expected to make this partial message complete. Furthermore there is no delimiter for the end of H.248 message. 
This would create a lot of complexity in segregating an incomplete message from a badly encoded message as the length of message is not available.
Please share your views/ideas on this. Are there any assumptions/decisions that have been discussed for H.248 over TCP.
  Thanks in advance and any thoughts on this would be deeply appreciated.
   
  Thanks
  Shashank

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