Each secondary node has a communication link to the coordinator, displayed as a line. The label, style and color of the link show inter-node communication (INC) state:
Active — Solid green line.
Not Responding — Dashed orange line.
Timed Out — Dotted red line.
Excluded — Link contains label “(Excluded)”.
Every link has a popup menu with a property sheet that provides the state and statistics about the heartbeat and connection pool. For more information, see “Heartbeat connections” and “Pooled connections”.
