[zeromq-dev] Question about PGM Pub/Sub

Steven McCoy steven.mccoy at miru.hk
Mon Apr 11 19:38:08 CEST 2016

On 11 April 2016 at 05:42, Luedicke, Jens <Extern.Luedicke at kmweg.de> wrote:

> The sockets are connected to “epgm://eth1;”.
> If I start the processes on different systems in my LAN, everything works
> fine. However,
> once I set a packet loss on one network device, there a quite a few NAKs,
> but no repair process
> in started and eventually the ping/pong process stops.

This typically implies the sender may not be listening on the correct IP
address, I would suggest replacing "eth1" with the IP address you wish to

I have embarked on a new campaign to improve the feedback the API provides
when setting up connectivity as this continues to be an ongoing common
problem and entirely non-obvious on new platforms like OS X El Capitan.
Today there are multiple levels of logging but the interesting pieces
require compile time configuration.

Enable trace logging to see which interfaces are in use with the
environment variable PGM_MIN_LOG_LEVEL=TRACE

Trace: Binding receive socket to INADDR_ANY
Trace: Join multicast group on interface index 4
Trace: Multicast send interface set to index 4

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