[uggedal]

While it's true that IE6 and IE7 can only handle 2 concurrent persistent connections per server, IE8 can handle 6.

Firefox 3 by default handles max 8 persistent connections per server, and max 15 connections per server in total (persistent and non-persistent).

This goes against RFC2616, but I guess the capacity of both servers and clients have increased enough the last 10 years to warrant such changes in default behavior across browsers.

[kragen]

The RFC2616 requirement was always a bad idea for users; for years I missed the Netscape feature that let you set this parameter to whatever you wanted; I left it at 20. (Was that up to 0.91N? I forget.) It helped out server software that made concurrent connections expensive, though.