11.2.0.3 ：PRVG-11134 : Interface "n.n.n.n" on node "racnode1" is not able to..

現象：

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.

原因：

Due to

Duplicates:

解決方法： 
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.

參考文件： 
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" (文件 ID 1395273.1)