[zeromq-dev] EPGM on Linux 4.1.2

William Brown william.brown at ericsson.com
Thu Jan 26 01:17:20 CET 2012


	Hi Martin,

	Thanks for the quick reply. Yes, I have several test cases developed for most of
	the ZeroMQ example patterns, including standard pub/sub, fan-in, fan-out, peer-to-peer
	and router/dealer (broker pattern). All work perfectly well when using TCP and/or IPC

	Moving back to ZeroMQ 2.1.11 seems to have resolved my problem with EPGM. I'll stick 
	with ZeroMQ 2.1.11 for the time being and will wait for 3.1 to come out of beta before 
	trying again.


-----Original Message-----
From: zeromq-dev-bounces at lists.zeromq.org [mailto:zeromq-dev-bounces at lists.zeromq.org] On Behalf Of Martin Lucina
Sent: Wednesday, January 25, 2012 7:13 PM
To: zeromq-dev at lists.zeromq.org
Subject: Re: [zeromq-dev] EPGM on Linux 4.1.2

Hi William,

On Wed, 25 Jan 2012 18:45:37 -0500
William Brown <william.brown at ericsson.com> wrote:

>         On my Mac, this works great, except that I do have to substitute my IP address for the interface name.
>         On my Linux system the bind and connect work and the publisher appears to be publishing the messages.
>         The problem is that the receiver is getting nothing. The eth0 interface does contain the following
>         "UP BROADCAST RUNNING MULTICAST MTU:1500 etc, etc..... I've got plenty of sleep in the example
>         program between subscriber start and publisher start, so I shouldn't be missing any messages.
>         Any thoughts on why this program doesn't work on Linux?

Sanity check - does the same program work on your Linux box if you use tcp:// endpoints instead of epgm://?

You might want to check on the publisher side with Wireshark or tcpdump to see if the multicast packets are actually hitting the network.


Martin Lucina <martin at lucina.net>
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