Set TCP Receive Buffer Size for NetTcpBinding

WhatsaMattaU 0

Hi, With NetTcpBinding, is there any configuration parameter that controls the TCP Receive Window size negotiated during SYN? Thank you,

Hui Liu-MSFT 48,641 Reputation points Microsoft External Staff

2024-02-16T09:16:46.61+00:00
Hi,@WhatsaMattaU. Welcome to MicrosoftQ&A. When using NetTcpBinding in WCF (Windows Communication Foundation), you don't have direct control over low-level TCP settings like the TCP receive window size during the SYN handshake. NetTcpBinding abstracts away many of the underlying transport details, and the configuration options it provides are at a higher level.

In the case of NetTcpBinding, if you need to adjust low-level TCP settings, it might be more appropriate to handle this at the operating system level rather than through WCF configuration.

You can modify the TCP receive window size on the operating system using tools like the netsh command. Here is an example:

netsh interface tcp set global autotuning=disabled netsh interface tcp set global windowscaling=disabled netsh interface tcp set global autotuninglevel=restricted netsh interface tcp set global congestionprovider=ctcp

These commands adjust TCP settings globally on the system, affecting all TCP connections. Adjusting these parameters can have performance implications, so it's essential to test and evaluate the impact on your specific application.

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