ORA-28545: error diagnosed by Net8 when

admin

ORA-28545: error diagnosed by Net8 when connecting to an agent
Cause: An attempt to call anexternal procedure or to issue SQL to a non-Oracle
system on a Heterogeneous Services database link failed at connection
initialization. The error diagnosed by Net8 NCR software is reportedseparately.
Action: Refer to the Net8NCRO error message. If this isn't clear, check connection
administrative setup in tnsnames.ora and listener.ora for the serviceassociated
with the Heterogeneous Services database link being used, or with 'extproc_
connection_data' for an external procedure call.