SOURCE sourcename AT hostname VIA protocol PORT number
where sourcename is the name of a SOURCE in DBServer parameter file on the remote host, hostname is either the name of the remote host or if using TCP/IP, its TCP/IP address, protocol is either TCPIP, HLCN, or BNA, and number is the port number DBServer is using on the remote system.
Use the SOURCE parameter to specify that the audit files are on a remote host. This allows Span to run on a host that is less busy than the production host. DBEngine will communicate with DBServer on the remote host to retrieve portions of the audit trail.
The following is an example of a SOURCE parameter:
SOURCE BANKDB AT PROD VIA TCPIP PORT 3000