DBA_HIST_CLUSTER_INTERCON

DBA_HIST_CLUSTER_INTERCON displays information about the devices used by the instance to access the interconnect (that is, communicate with other instances).

Column Datatype NULL Description
SNAP_ID NUMBER NOT NULL Unique snapshot ID
DBID NUMBER NOT NULL Database ID for the snapshot
INSTANCE_NUMBER NUMBER NOT NULL Instance number for the snapshot
NAME VARCHAR2(15) NOT NULL Operating system name of the device
IP_ADDRESS VARCHAR2(16)   IP address of the device
IS_PUBLIC VARCHAR2(3)   Indicates whether the device is a public interface (YES) or a private interface (NO)

Public interfaces can be listened to by outside applications, which may be a security problem. Oracle recommends using private interfaces for interconnect.

SOURCE VARCHAR2(31)   Describes the type of device