There's no explicit retransmissions in 0MQ, though TCP will do that for dropped packets.
On Tue, Mar 25, 2014 at 11:48 PM, George Kumar <[email protected]> wrote: > Hi Pieter, > > Does PUB-SUB do retransmissions at the TCP level ? We do not need > retransmissions as that will impact the real time nature of our application. > Even though pub-sub is unreliable overall, I am wondering if retransmissions > happen to make sure a message is reliably delivered. Having a flag that > says "no retransmissions" will also be helpful. > > Thanks. > George > > > On Fri, Feb 14, 2014 at 1:40 AM, Pieter Hintjens <[email protected]> wrote: >> >> George, >> >> You can probably send video to a handful of recipients over TCP, using >> pub-sub sockets. It depends totally on the video size, compression, >> etc. UDP multicast isn't going to help unless the recipients are on >> the same network. Semi-reliable UDP (like UDT) might help on some >> networks. However TCP will mostly do just fine for your case. >> >> -Pieter >> >> On Wed, Feb 12, 2014 at 1:24 AM, George Kumar <[email protected]> wrote: >> > Hi all, >> > >> > Sorry if this too basic a question for most for you on the list. I have >> > a >> > requirement where I need to multicast video to up to 3 recipients. I am >> > considering ZMQ PUB/SUB model. But ZMQ does not have the option of using >> > UDP >> > for transport. TCP is generally discouraged for real time data like >> > video. >> > So what do you folks think ? >> > >> > Appreciate your feedback. >> > Thanks. >> > George >> > >> > _______________________________________________ >> > zeromq-dev mailing list >> > [email protected] >> > http://lists.zeromq.org/mailman/listinfo/zeromq-dev >> > >> _______________________________________________ >> zeromq-dev mailing list >> [email protected] >> http://lists.zeromq.org/mailman/listinfo/zeromq-dev > > > > _______________________________________________ > zeromq-dev mailing list > [email protected] > http://lists.zeromq.org/mailman/listinfo/zeromq-dev > _______________________________________________ zeromq-dev mailing list [email protected] http://lists.zeromq.org/mailman/listinfo/zeromq-dev
