Start/notes.ini Parameters/Server_Cluster_Default_Port

Server_Cluster_Default_Port

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Parameter: Server_Cluster_Default_Port
Short description: Defines the network port (Notes port name) that the cluster manager uses by default for its internal communication.

Profile

Parameter
Server_Cluster_Default_Port
Category
Cluster
Component
Server
Available since
9.0
Supported versions
9.0.1, 10.0, 11.0, 12.0, 14.0, 14.5, 14.5.1
GUI equivalent
notes.ini only (no GUI)
Possible values
Notes port name (e.g. ClusterPort, TCPIP)

Description

In a Domino cluster, the nodes continuously exchange status information (replication, failover decisions, cluster probes). By default, the cluster manager uses the general server network port. For a clean separation between end-user traffic and cluster-internal traffic (e.g. a dedicated cluster network with its own NIC), Server_Cluster_Default_Port can be used to specify a dedicated Notes port (such as ClusterPort) defined in the notes.ini. All cluster communication then flows over that port – ideally on a separate, performant, and secured subnet.

Example configuration

Ports=TCPIP,ClusterPort
ClusterPort=TCP,xxx,15,0,,12320
Server_Cluster_Default_Port=ClusterPort

Notes & pitfalls

  • Prerequisite: the named port must be active and correctly configured in Ports=.
  • Takes effect after a server restart.
  • Configure identically on all cluster nodes – otherwise the probes will not work.
  • Ideally secure the cluster network with its own TLS and firewall rules.