Re: Bufferbloat

[Steven Bellovin <smb%cs.columbia.edu@localhost>]

On Jan 7, 2011, at 3:00 09PM, David Brownlee wrote:

> Very interesting blog article from Jim Gettys (apologies to those who
> have already read it) regarding the size of network buffers breaking
> TCP.
> 
> http://gettys.wordpress.com/2010/12/03/introducing-the-criminal-mastermind-bufferbloat/
> 
> I wonder how many people out there are running RED in ALTQ to
> effectively mitigate this on their DSL links?
> 
I've been working with Jim on this issue -- there's no doubt that he's
correct.  A lot of other networking people are looking at it, too, up
to and including Van Jacobson.  Van has some modifications to RED that
were never published but make it work a lot better and *much* more
automatically.  He's going to post them soon 
(http://gettys.wordpress.com/2011/01/06/a-committee-is-a-life-form-with-six-or-more-legs-and-no-brain-lazarus-long/);
it would be a very good idea if NetBSD would implement the new scheme.


                --Steve Bellovin, http://www.cs.columbia.edu/~smb