[zeromq-dev] What protocol does 0mq heartbeat use?

James Marcus marcus.james at gmail.com
Thu Jan 24 18:45:20 CET 2013

I'm working through some issues for our engineers and its not clear to me
if the heartbeat is using multicast or ICMP (ping) for the heartbeat?

Our two servers can't communicate but I see ports open. I'm also able to
use omping for multicast testing, as well as ICMP ping.

Any additional thoughts on testing connectivity between two machines would
be great.

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