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SPDY Essentials

GoogleTechTalks · Youtube · 2 HN points · 2 HN comments
HN Theater has aggregated all Hacker News stories and comments that mention GoogleTechTalks's video "SPDY Essentials".
Youtube Summary
Google Tech Talk
December 8, 2011

Presented by Roberto Peon and William Chan.

ABSTRACT

SPDY is an application layer protocol which increases security while decreasing latency. SPDY is on track for a possible re-naming to HTTP/2.0, and is being actively implemented by important contingents of the web community external to Google. In this presentation, we will present the overall design of SPDY, the performance benefits, future plans, and suggestions as to how to take advantage of its features.
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Hacker News Stories and Comments

All the comments and stories posted to Hacker News that reference this video.
One of the reasons SPDY uses encryption is to ensure intermediate proxies do not mishandle the new protocol. A couple of SDPY devs gave a tech talk[1] where they mentioned the problems with tunneling a new protocol (in their example websockets) through HTTP (19:11 into video). Sending websockets over HTTP on port 80 only has a 67% success rate. HTTPS over 443 had a 95% success rate. The benefit of HTTPS is that intermediates cannot see or interfere with data transfer. The disadvantage is that caching and CDNs are more difficult to use.

As an interesting side note, tunneling HTTP over a random port (in the slides port 61985) had a higher success rate than port 80 (86% vs 67%). If I remember correctly, the speakers attribute this to intermediate proxies hardcoded to handle port 80, leaving other ports free of processing.

[1] http://www.youtube.com/watch?v=TNBkxA313kk

http://www.chromium.org/spdy - contains some great and in-depth research motivating SPDY.

Original whitepaper: http://www.chromium.org/spdy/spdy-whitepaper

Here's a good tech talk to checkout as well: http://www.youtube.com/watch?v=TNBkxA313kk

Draft 3 has also updated the dictionary, here's the research paper motivating the change: http://www.eecis.udel.edu/~amer/PEL/poc/pdf/SPDY-Fan.pdf

Jan 27, 2012 · 2 points, 0 comments · submitted by taylorbuley
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