[zeromq-dev] Marshalling / Routing

[Lee Sylvester]

Hi,

I saw the XSUB and XPUB; they're dealer / router related, right?  I found it hard to find information on using these directly.  If I swap out PUB/SUB for XPUB/XSUB, how then do I specify who can receive what packets?

Thanks,
Lee



On 15 Apr 2013, at 08:03, "A. Mark" <gougolith at gmail.com> wrote:

> 
> Hi Lee,
> 
> The PUB socket is neutral towards SUBscribers that's why it's a publisher. Depending on what you are trying to achieve with your mesh you may need to use  different socket pair if you need such "filtering". Did you try XPUB/XSUB?
> 
> 
> On Sun, Apr 14, 2013 at 10:47 PM, Lee Sylvester <lee.sylvester at gmail.com> wrote:
> Hi guys,
> 
> So, I'm building a mesh and I'm using pub / sub to achieve this.  I have one port for pub and one port for sub on each node.  With sub, I've set up routing so the node will be interested in only a certain kind of messages.  My problem is with traffic.  Now, as I understand it, routing in sub means that the filtering is only occurring on the subscriber; all messages are received, but those messages that don't fit the filter are discarded.  Is there any way to filter at the publisher end, so as to save on network traffic?
> 
> Thanks,
> Lee
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