Configuring Communication Paths
iSTAR eX Installation and Configuration Guide 2–15
Configuring Communication Paths
This section includes guidelines and procedures for configuring primary and 
secondary communication paths.
Planning Primary Communications
Configuring a primary communication path involves: 
 Specifying a master for the cluster 
 Specifying a communication method between the master and the 
C•CURE host:
• Onboard 1 Ethernet (default)
• Onboard 2 Ethernet 
 Specifying connection parameters for establishing and maintaining the 
primary path 
Primary Communication Guidelines 
Follow these guidelines when configuring a primary path: 
 Every cluster must have a master.
 Only one master is allowed per cluster (although an alternate master may 
be designated for secondary communications). 
 If a cluster contains only one controller, that controller is the master.
 Any controller in a cluster can be designated as the master.