IP Differentiated Services on Windows

[paullouisageneau]

IP Differentiated Services by setting the IPv4 ToS field or the IPv6 Traffic Class field are not supported on Microsoft Windows. Microsoft has a proprietary API called qWave for QoS, it should be investigated to establish whether the DSCP can be set without administrator flow configuration.

libjuice/src/udp.c

Line 149 in 11c8961

// TODO: Investigate if DSCP can be still set directly without administrator flow configuration.

[edbek]

Explain, please. Does it happen that the libjuice does not work on Windows and I only need to use Linux?

[paullouisageneau]

As advertised in the Readme, libjuice works fine on Windows.

Differentiated Services allow to set the proper priority on packets, allowing to optimize latency for real-time traffic. The feature is not available on Windows for now, so performance can be slightly lower for some use cases. Nothing serious, though.