The sybcluster 'connect' command may fail because of incorrect network configuration information during the Unified Agent start-up or when executing the sybcluster command.
Examine the Unified Agent log files for each agent in the cluster to determine whether any errors are reported opening the RMI listener for the agent. The agent log files are:
$SYBASE/UAF-2_5/nodes/node_name/log/agent.log
Specify the correct node names and listening port numbers for the -F parameter when starting sybcluster:
sybcluster -U uafadmin -P -C MYCLUSTER -Fnode1:1234,node2:1234