If signalling paths cannot be established to provide at least one inbound and one outbound path between each of the systems in the sysplex, XCF on the initializing system issues message IXC454I, which indicates that signalling connectivity cannot be established. XCF then issues message IXC455D and requests the operator to respond with:

R

To be prompted for a different COUPLExx parmlib member.

INTERVAL=NNN

To specify the number of seconds that XCF is to continue checking for signalling connectivity to other systems in the sysplex. Use INTERVAL when one or more other systems, shown in message IXC454I, are slow to respond to the requests of the initializing system to establish connectivity.