[zeromq-dev] Multicast and send/recv

gonzalo diethelm gdiethelm at dcv.cl
Mon Feb 22 14:46:27 CET 2010

> > Say I have many different programs running on a network, all of them
> > built using 0MQ. I have been thinking about having a supervisor that
> > every so often sends a "ping" message, gathers the responses from
> > programs and tells me useful information about them (starting with
> > is responding to the ping message).
> >
> > Can this be done with multicast? Could I have each program do a bind
> > a multicast endpoint (probably on a separate thread) and, when
> > the ping message, answer back using the same endpoint / channel? The
> > advantage I see about doing things this way is that each program
> > needs to know the endpoint it has to bind to, and the supervisor
> > not need to know how many programs there are (as long as all of them
> > reachable through multicast). Or is there a better way to do this?
> Yes. I think using multicast for this kind of thing makes sense.

And what kind of socket would you use? Since it has to be bidirectional,
it seems as if REQ/REP or UPSTREAM/DOWNSTREAM are the only candidates,

Gonzalo Diethelm

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