IBM zS oracle RAC database validating multicast

network team upgraded network, and we are trying to validate our RAC database.

one thing I found is related to RAC multicast.

I ran mcasttest.pl and found a fail, I want to confirm if this is acceptable. see below:

$ perl mcasttest.pl -n h1dev20,h1dev21 -i en12,en13

###########  Setup for node h1dev20  ##########

Checking node access 'h1dev20'

Checking node login 'h1dev20'

Checking/Creating Directory /tmp/mcasttest for binary on node 'h1dev20'

Distributing mcast2 binary to node 'h1dev20'

###########  Setup for node h1dev21  ##########

Checking node access 'h1dev21'

Checking node login 'h1dev21'