Oracle Solution for Error ora-06321

ORA-06321: IPA: Cannot reach the remote side

What triggered the Error:

There has been a timeout on an attempt to connect to a remote server the reason for which is most likely to be the remote SQL*Net IPA software is not running. An alternative reason could be that the remote initiator service name is incorrect.

What should we do to fix it:

Check and start the remote SQL*Net software. Check that it is started with the correct service names supplied.