RDBPROD: SQL/Services Uses Multiple Network Ports for Multiversions
(Doc ID 65880.1)
Last updated on APRIL 18, 2022
Applies to:Oracle SQL/Services for Rdb on OpenVMS - Version 7.0 and later
HP OpenVMS VAX
HP OpenVMS Itanium
HP OpenVMS Alpha
In versions of SQL/Services prior to 7.0, the SQL/Services Communications server listened exclusively on port 118 (Object 81 for DECNET).
Starting with v7.0, users can configure SQL/Services to listen on alternate ports. For example, they may want to have a system with SQL/Services v7.2.x and SQL/Services v7.3.x running at the same time. This is implemented by having the v7.2.x system listening on port 118 and having the v7.3.x system listening on another port, port 119 for example.
To implement this feature, users need a greater understanding about how an application transfers data from one machine to another. The following discussion describes this operation for TCP/IP. The same rules apply for DECNet but substitute PORT for OBJECT.
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