MONITORING PRIVATE NETWORKS: IN RAC
Oracle Support recommends you use this tool to monitor RAC private
networks. Create a file named private.net or look at the
Exampleprivate.net file and manually enter in the hostname or ipaddress
you wish to monitor. Each unix os uses slightly different arguments to
the traceroute command. Refer to Exampleprivate.net for examples for
each unix os.
you can find more info@
http://www.oracleutilities.com/OSUtil/trcroute.html