avahi daemon failing to resolve some services in RHEL 6

Solution In Progress - Updated -

Issue

  • We're starting to use avahi here for mdns resolution, and we are seeing some strange errors when browsing the network. For instance, if we do:
avahi-browse -rkt _ssh._tcp

We get some answers back, but then we get many hosts that timeout:

Failed to resolve service 'aaa' of type '_ssh._tcp' in domain 'local': Timeout reached
Failed to resolve service 'bbb' of type '_ssh._tcp' in domain 'local': Timeout reached
Failed to resolve service 'ccc' of type '_ssh._tcp' in domain 'local': Timeout reached
...

Environment

  • Red Hat Enterprise Linux (RHEL) 6

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