Bufferbloat: "Dark" Buffers in the Internet - Demonstrations only

Bufferbloat is a pervasive problem in the Internet, affecting operating systems, home routers, broadband gear of all technologies, wireless and elsewhere. It affects us all on a nearly daily basis, and the widespread performance problems and severity has been unappreciated, usually being attributed to insufficient bandwidth rather than the actual cause.

This video demonstrates two instances of bufferbloat: typical bufferbloat in a broadband connection, and that in present in a typical current home router, but elides the more extensive discussion found in its companion video in favor of time.

More information can be found at:

http://cacm.acm.org/magazines/2012/2/...
http://cacm.acm.org/magazines/2012/1/...
http://www.youtube.com/watch?v=qbIozK...
http://www.bufferbloat.net
http://gettys.wordpress.com

• Category

  Science & Technology

[viciouswhips]

Listen first, don't watch.

Then mute video and watch & read.

Simples.

However if you are a female then you can do it all simultaneously.

[Kathy Vaught]

thank you for this info,.. my mind was just blown! looks like I have a lot of learning to do, starting with re-watching this., great tutorial! :)

[gr3y]

I recently flashed a DD-WRT build to my Linksys WRT160n (v3) router. After flashing, I began experiencing major latency problems (a normal ping to my local University's DNS server, which would've normally yielded a latency of around 65ms, was taking 400ms or more).

I discovered the following command to reduce the buffer size: 'ifconfig eth0 txqueuelen 2'

Do you believe that a buffer size of 2 is too small? Also, do you have any other tips to combating bufferbloat in the home setting?

[quadraginta]

Good heavens, EITHER talk OR show words on the screen. Doing both presents your viewers with complete gibberish.