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When the optional CC-SG clustering feature is used, the following ports must be available for the inter-connecting sub-networks. If the optional clustering feature is not used, none of these ports has to be open.
Each CC-SG in the cluster may be on a separate LAN. However, the inter-connection between the units should be very reliable and not prone to periods of congestion.
Several TCP/IP connections are maintained and initiated by the Primary to the Backup in a CC-SG cluster. These connections may be idle for extended periods of time, but they are necessary for the cluster to operate.
Ensure that all CC-SG to CC-SG cluster connections over VPN or firewalls do not time out or become blocked. Timing out these connections will cause the cluster to fail.
Communication Direction |
Port Number |
Protocol |
Configurable? |
Details |
|---|---|---|---|---|
CC-SG to Local Broadcast |
10000 |
UDP |
no |
heartbeat |
CC-SG to Remote LAN IP |
10000 |
UDP |
no |
heartbeat |
CC-SG to CC-SG |
5432 |
TCP |
no |
From HA-JDBC on Primary to Backup PostgreSQL DB server. Not encrypted. |
CC-SG to CC-SG |
8732 |
TCP |
no |
Primary-Backup server sync clustering control data exchange. MD5 encrypted. |
CC-SG to CC-SG |
3232 |
TCP |
no |
Primary-Backup SNMP sync configuration changes forwarding. Not encrypted. |