[zeromq-dev] Trying to get a publish - subscribe test program working with multicast.

Steven McCoy steven.mccoy at miru.hk
Fri Oct 19 00:20:51 CEST 2012

On 18 October 2012 18:13, Thomas Loockx <thomas.loockx at otoy.com> wrote:

> Further investigation shows that on the server side IGMP joins are
> received to join the multicast group. And I can see the multicast
> traffic on the client side as well. It seems that the multicast
> traffic is not "picked up" by zeromq.

For diagnosis first try iperf or netperf so see if multicast is working
well.  If that's good then try building OpenPGM with Scons and using the
bundled tools for testing.  There are some changes upstream to fix some
unusual characteristics of some platforms.

You can try setting
 for additional tracing but may require a debug build for productive notes.

Chalk it on a todo list for a multicast debug tool.

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