Network acceleration with TCP Fast Open

Getting There Faster

Article from Issue 147/2013

With TCP Fast Open, Google introduces a protocol extension, implemented in the Linux kernel, that avoids unnecessary latency in network traffic and promises up to 41 percent acceleration, depending on the application.

In mid-2011, Google’s “Make the web faster” team, which is led by Sivasankar Radhakrishnan, Arvind Jain, Yuchung Cheng, and Jerry Chu, presented a draft for reducing preventable latency. The technique, which is called TCP Fast Open (TFO), depends on streamlining the process of opening a TCP session.

The idea itself is not new – way back in 1994, RFC1379 and RFC1644 specified the conceptually similar Transactional TCP (T/ TCP). Unfortunately, an analysis published in September 1996 revealed serious security issues with T/TCP [5], and the technique failed to establish itself on a broader front. Based on this previous experience, the Google team refined the approach when developing TFO, leading to an improved result. Linux kernel 3.6 implements the necessary client-side infrastructure, and 3.7 will include support for TFO on the server end, so it looks like the era of faster TCP connections might be just around the corner.

Buy this article as PDF

Express-Checkout as PDF
Price $2.95
(incl. VAT)

Buy Linux Magazine

Get it on Google Play

US / Canada

Get it on Google Play

UK / Australia

comments powered by Disqus

Direct Download

Read full article as PDF:

Price $2.95


njobs Europe
Njobs Netherlands Njobs Deutschland Njobs United Kingdom Njobs Italia Njobs France Njobs Espana Njobs Poland
Njobs Austria Njobs Denmark Njobs Belgium Njobs Czech Republic Njobs Mexico Njobs India Njobs Colombia