Listener service cannot be started in dynamic manner

Hi.

This database runs in Data Guard configuration.  I have created a trigger to start service (DBNAME_VIP) only on primary database. It works well on ServerA, but I cannot start this service on server B for this database. Do you have any idea why although service is reported in the database it doesn't run on the listener?

SQL> show parameter service

NAME                                 TYPE        VALUE
------------------------------------ ----------- ------------------------------
service_names                        string      DBNAME_VIP

SQL> select NAME,NETWORK_NAME from V$ACTIVE_SERVICES where NAME not in ('SYS$BACKGROUND','SYS$USERS');

NAME
----------------------------------------------------------------
NETWORK_NAME
--------------------------------------------------------------------------------
DBNAME_VIP
DBNAME_VIP

DBNAMEXDB