Delete and rename options are greyed out in NETCA

Hi,

ct would like to delete a listener through net configuration assistant. However, the only option available is to add a listener.  The other options, i.e. delete, rename, etc.... are all grayed out.

This is not a RAC environment.

$ lsnrctl status

LSNRCTL for IBM/AIX RISC System/6000: Version 11.2.0.2.0 - Production on 05-MAR-2012 08:41:51

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Connecting to (ADDRESS=(PROTOCOL=tcp)(HOST=)(PORT=1521))
STATUS of the LISTENER
------------------------
Alias                     LISTENER
Version                   TNSLSNR for IBM/AIX RISC System/6000: Version 11.2.0.2.0 - Production
Start Date                27-FEB-2012 08:18:23
Uptime                    7 days 0 hr. 23 min. 29 sec
Trace Level               off
Security                  ON: Local OS Authentication
SNMP                      ON