Extremely slow web page loading to only 1 site ?

[Bruno Wolff III]

On Tue, Feb 09, 2010 at 08:21:33 +0800,
  Ed Greshko <Ed.Greshko at greshko.com> wrote:
> 
> In the back of my mind, from a few years ago, I remember there an issue
> with the linux TCP/IP stack and some "mis-configured" routers.  I need
> to get some coffee and hopefully my brain will get in gear....

I believe that was ECN. (A way to signal congestion without throwing away
packects.)

There have also been problems with MTU discovery because people block ICMP
packets indiscrimiantly.