Peer-to-peer communications can occur among mainframes running CCISSLGW or among distributed CA NSM computers and mainframes. In both cases the mainframe task CCISSLGW facilitates the communication.
A single instance of the CA NSM Java GUI can be used to work with multiple CA Common Services or CA NSM computers. For example, even though the Workload component of CA NSM is not delivered as part of CA Common Services on z/OS, it is still available from the GUI. The main requirement is that the computers be connected by CAICCI. All of the remote computer CA NSM applications are visible in the GUI. You are prompted for a user ID and password for remote computers to ensure security.
To limit the computers that are displayed, you can create a file /cai/nsmem/emsrvc/data/nodelist that lists the CAICCI SYSIDs of each computer you want to display. A sample file called nodelist.sample is provided in that directory. Limiting the number of computers displayed reduces response time.
Here is an example of the GUI with multiple computers displayed:

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