How to use UDP-Unicast (UDPU) in a RHEL High Availability cluster?

Solution Verified - Updated -


  • Can corosync use unicast UDP instead of multicast and broadcast?
  • Would like to implement Red Hat Cluster, I can implement this type setup without multicast using unicast instead?
  • How to change the transport mode/protocol for High Availability clusters to UDPU?


  • Red Hat Enterprise Linux (RHEL) 6 or 7 with the High Availability Add On
    • Applicable also in Highly Available Red Hat Enterprise MRG Messaging 2.1 clusters
  • corosync

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