Enter a name that identifies a listener not currently in use. The name can be no longer than 138 characters.
The listener is a process that receives connection requests on behalf of a client application. Each listener is identified by a unique name. LISTENER is the default listener name for the first listener. Subsequent listeners are defaulted to LISTENER1, LISTENER2, and so on.
Prior to Enterprise Manager version 10.2, the system checked only the local listener.ora file. Enterprise Manager version 10.2 and higher checks all Oracle homes on the cluster to determine whether a listener name is already used.
Oracle Net Services Configuration Overview
Copyright © 1996, 2011, Oracle and/or its affiliates.All rights reserved.
Oracle is a registered trademark of Oracle Corporation and/or its affiliates.
Other names may be trademarks of their respective owners.