Hi Vineet, Using a SIP B2BUA is a good approach for maintaining sessions and accounting purposes. In comparision to stateful proxy, load wise, it will give better results. Because few functions like forking are reduced. By using B2BUA, features like call forwarding and redirections can also be implemented. So, it is better to use a B2BUA with several stateless proxies.
Thanks, Kiran. Hi, Actually, my question was regarding an infrastructure set-up. As an administrator, I want to keep track of calls being made, hence, I would like to put a stateful proxy in place. In such a situation, the overloading of servers is an imminent threat, since stateful proxies have less capacity(load wise) than stateless.. BTW, is der a way to combine a stateful proxy and several stateless proxies to do something useful?? As in a master-slave kinda thing? Regards, Vineet Menon On 5 June 2012 16:47, Tarun2 Gupta <[email protected]> wrote: > **** > > 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]> > 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]> 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]] On Behalf Of Vineet > Menon > > Sent: Tuesday, June 05, 2012 3:41 PM > > To: [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]**** > > > > 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] > 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/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
