Ingres 9.3 introduced a new port address calculation scheme that utilizes some of the unused bits in the 16-bit port value used in Ingres 9.2 and earlier. This increases the allowed number of Ingres Net Servers (IIGCC) and the Data Access Servers (IIGCD) using the TCP/IP protocol to a combination of 16 servers. The algorithm is structured so that:
- Net-enabled servers (IIGCC and IIGCD) can potentially have a startup count of 0–16.
- Subports within the range 8–15 map to a different range
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