Somesh I agree how the ACK request is handled but I was simply going by the definition for a transaction as one which is associated with atleast one final response, which is not the case for an ACK for 200OK. So an ACK to a final response is truly a transaction or just a request?
Its true that the transmission is handled on the transport level. I guess I am too much fixated to the definition of a "transaction" in section 17. Thanks Manpreet -----Original Message----- From: Somesh S Shanbhag [mailto:[EMAIL PROTECTED] Sent: Wednesday, November 09, 2005 2:24 AM To: Manpreet Singh; [email protected] Subject: Re: [Sip-implementors] Question reagrding ACK Request Hi Manpreet, RFC 3261 Section 13.2.2.4 states ... " Once the ACK has been constructed, the procedures of [4] are used to determine the destination address, port and transport. However, the request is passed to the transport layer directly for transmission, rather than a client transaction. This is because the UAC core handles retransmissions of the ACK, not the transaction layer. The ACK MUST be passed to the client transport every time a retransmission of the 2xx final response that triggered the ACK arrives. " Regards, Somesh S. Shanbhag --- Manpreet Singh <[EMAIL PROTECTED]> wrote: > Hi, > > The RFC says any transaction is associated with zero or more > provisional responses and one or more final responses. Now ACK request > to a 200OK is considered to be a different client transaction and > there are no responses to this request. How is the ACK tranaction > complete from its definition then? > > Please correct me if I am wrong and direct me to the section of RFC > explaining this. > > Thanks > > Manpreet > _______________________________________________ > Sip-implementors mailing list > [email protected] > http://lists.cs.columbia.edu/mailman/listinfo/sip-implementors > ----------------------------------------- SIMPLICITY IS THE BEAUTY. BE NATURAL LIVE NATURAL. ----------------------------------------- Somesh S. Shanbhag Focus Area - VoIP Team (FA-VoIP) Mascon Global Communication Technologies Enterprise of Mascon Global Limited #59/2, 100Ft Ring Road Banashankari II stage Bangalore-560070 Karnataka INDIA Website: http://www.masconit.com ----------------------------------------- __________________________________ Yahoo! FareChase: Search multiple travel sites in one click. http://farechase.yahoo.com _______________________________________________ Sip-implementors mailing list [email protected] http://lists.cs.columbia.edu/mailman/listinfo/sip-implementors
