Windows 10 And Windows Server 2016 Get New Tcp Improvements With Anniversary Update

The TCP update for Windows 10 and Windows Server 2016 includes five new features:

TCP Fast Open (TFO) for zero RTT TCP connection setup Initial Congestion Window 10 (ICW10) by default for faster TCP slow start TCP Recent ACKnowledgment (RACK) for better loss recovery Tail Loss Probe (TLP) for better Retransmit TimeOut response TCP LEDBAT (Windows Low Extra Delay BAckground Transport) for background connections

More specifically, TCP Fast Open generates a TFO cookie during the first three-way handshake (3WH) connection setup to achieve a zero RTT connection setup time. All the subsequent connections to the same server can use the TFO cookie to connect in zero-RTT. The Initial Congestion Window 10 default value in Windows 10 and Server 2012 R2 is 4 MSS. Once the new improvements are rolled out, the default value will be 10 MSS. The new TCP Recent ACKnowledgment feature uses the notion of time instead of counting duplicate acknowledgments to detect missing packets for TCP Fast Recovery. A packet is considered lost if  it was sent “sufficiently later” and has been cumulatively or selectively acknowledged. The new Tail Loss Probe improves Windows TCP’s behavior when recovering from packet loss. TLP converts Retransmit TimeOuts (RTOs) into Fast Retransmits for much faster recovery. The TCP LEDBAT feature is aimed at enabling background transport that does not interfere with other TCP connections. For more details about the upcoming Windows 10 and Windows Server 2016 improvements, check out Microsoft’s blog post. RELATED STORIES YOU NEED TO CHECK OUT:

Microsoft’s System Center 2016 and Windows Server 2016 Technical Preview bring better data center control Microsoft releases 2016 edition of Windows developer virtual machines Download and install Sysinternals on Windows 10

Name * Email * Commenting as . Not you? Save information for future comments
Comment

Δ