On the main server, run the status ess port-networks command to verify the servers a particular IPSI has established a connection with.

Under normal operation (no network or server failures) a IPSI will establish connections to all survivable core servers but only the eight servers that have the highest priority are shown when you run the status ess port-networks command.

The servers are listed under the Connected Clus(ter) IDs field in the order in which the IPSI will request service. The main server, if there is a connection to it, always has the highest priority.

For errors related to survivable core server socket connections to IPSIs, see Maintenance Commands for Avaya Aura® Communication Manager, Branch Gateways and Servers. Error 513 should be logged if a socket connection can not be established between an enabled survivable core server and an IPSI.