Default value of the TCPWINDOWSIZE option is changed to help improve performance

In IBM Spectrum® Protect Version 8.1.11, the default value of the TCPWINDOWSIZE server option is changed. This new default value can help to improve system performance.

The TCPWINDOWSIZE server option specifies, in kilobytes, the amount of received data that can be buffered at one time on a TCP/IP connection:

On the IBM® AIX® operating system, the default value is changed from 63 KB to 256 KB.
On the Linux® and Microsoft Windows operating systems, the default value is changed to 0, which matches the operating system default. On Linux and Microsoft Windows, the default value supports automatic tuning of the Transmission Control Protocol (TCP) sliding window for flow control, and this automatic tuning can lead to improved system performance.