TFO deployment seems to grow

TCP Fast Open is a TCP extension that enables client and servers to place data inside the SYN and SYN+ACK packets during the three-way handshake. This extension has been pushed by google to speedup short transfers. It is defined in RFC7413 and its Linux implementation is described in a nice LWN.net article.

Despite being supported by Linux and Apple, it has not yet been widely deployed on servers. Recent measurements collected by netray.io show that a growing number of servers support TFO.

TFO is rising

This blog post was written to inform the readers of Computer Networking : Principles, Protocols and Practice about the evolution of the field. You can subscribe to the Atom feed for this blog at https://obonaventure.github.io/cnp3blog/feed.xml. These notes are also posted on the ebook’s Facebook page

Written on August 14, 2019