Adding to Vivek's point Stateless proxies scale very well, and can be very fast. They are good for network cores. Stateful proxies can do more (they can fork, for example) and can provide services stateless ones can't (call forward busy, for example). They don't scale as much as stateless ones. An admininstrator gets to decide which to use. These are also logical entities; a physical proxy is likely to act as a stateless proxy for some calls, stateful for others, and as a redirect server for even others.
Regards, Tarun Gupta Aricent ________________________________ From: Vivek Talwar [mailto:[email protected]] Sent: Tuesday, June 05, 2012 4:10 PM To: Vineet Menon Cc: Tarun2 Gupta; [email protected] Subject: Re: [Sip-implementors] stateless proxy and accouting Hi Vineet, Its not like that its of no use but again it depends on how one can use benefits of Stateless proxies. For example : Stateless proxy helps in managing network load and its distribution. Thanks and Regards, Vivek Talwar On Tue, Jun 5, 2012 at 3:57 PM, Vineet Menon <[email protected]<mailto:[email protected]>> wrote: thanks tarun and vivek for prompt response.. So basically, a stateless proxy is of no use; as far as an infrastructure is concerned... Regards, Vineet Menon On 5 June 2012 15:54, Tarun2 Gupta <[email protected]<mailto:[email protected]>> wrote: > Hi Vineet**** > > ** ** > > A stateless proxy forwards each request downstream to a single element > determined by making a targeting and routing decision based on the > request. It simply forwards every response it receives upstream. A > stateless proxy discards information about a message once the message has > been forwarded. Stateless proxy takes messages, both requests and > responses, directly from the transport layer (and thus are not able to > distinguish between retransmissions and the original message).**** > > ** ** > > IMO, such an entity cannot do accounting.**** > > ** ** > > Regards,**** > > Tarun Gupta**** > > Aricent**** > > ** ** > > -----Original Message----- > From: > [email protected]<mailto:[email protected]> > [mailto: > [email protected]<mailto:[email protected]>] > On Behalf Of Vineet Menon > Sent: Tuesday, June 05, 2012 3:41 PM > To: > [email protected]<mailto:[email protected]> > Subject: [Sip-implementors] stateless proxy and accouting > > ** ** > > HI,**** > > ** ** > > How does a stateless proxy do routing of SIP packets? Can it do accounting > **** > > of calls?**** > > ** ** > > Regards,**** > > ** ** > > Vineet Menon**** > > _______________________________________________**** > > Sip-implementors mailing list**** > > [email protected]<mailto:[email protected]>**** > > https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors**** > > > > > > =============================================================================== > Please refer to http://www.aricent.com/legal/email_disclaimer.html > for important disclosures regarding this electronic communication. > > =============================================================================== > _______________________________________________ Sip-implementors mailing list [email protected]<mailto:[email protected]> https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors -- Vivek Talwar GlobalLogic Inc. | Innovation by Design ARGENTINA | CHILE | CHINA | INDIA | ISRAEL | UKRAINE | UK | USA Office: +91-120-434-2000 x 3217 | Mobile: +919015330797 www.globallogic.com<http://www.globallogic.com> http://www.globallogic.com/email_disclaimer.txt =============================================================================== Please refer to http://www.aricent.com/legal/email_disclaimer.html for important disclosures regarding this electronic communication. =============================================================================== _______________________________________________ Sip-implementors mailing list [email protected] https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors
