Shulou(Shulou.com)06/01 Report--

Phenomenon:

11.2.0.3 Grid Infrastructure/RAC database CVU/OUI multicast communication check fails:

Checking multicast communication...

Checking subnet "10.47.99.200" for multicast communication with multicast group "230.0.1.0"...

PRVG-11134: Interface "10.47.99.1" on node "racnode1" is not able to communicate with interface "10.47.99.2" on node "racnode2"

The issue can happen during either fresh install or upgrade.

Reason:

Due to bug 14516955

Duplicates: bug 14580001 bug 14311097

Solution:

The bug is fixed in 11.2.0.4 and above. As 11.2.0.3 cssd uses both broadcast and multicast on private network to bootstrap, the warning can be ignored.

Reference documentation:

Linux: 11.2.0.3 Multicast Communication Failure: PRVG-11134: Interface "n.n.n.n" on node "racnode1" is not able to communicate with interface "n.n.n.n" on node "racnode2" (document ID 1395273.1)

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