Hello Krishna,
This transaction is used to view the status of the WWI Servers. It's one of several tools you can use to troubleshoot when WWI, Report Shipping or GLM processes aren't running correctly.
Within the transaction you are also able to activate, deactivate or test servers. This can be useful when stress testing specific servers to make sure they run correctly or troubleshooting to find which servers are running incorrectly during normal business processes.
Let me know if you have any other specific questions regarding this.
-Nick