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Re: MTU of the Internet?
On Fri, Feb 06, 1998 at 10:50:31AM -0800, Tony Hain wrote: > This thread has drifted all over the place and the only conclusions I can > see are: > > The core infrastructure MTU is >= 1500 > People are telling clients to set their Win95 MTU to 576 People are asserting that Win98 comes with it's MTU set this low, which appears to be generally considered to be a bad idea. > PMTU is randomly broken by clueless filtering > Some dial-access devices are buffer limited > A small MTU (53 byte?) would increase perceived response at the expense of > performance Browsers, and other software which open multiple connections should temper their connection counts based on the size of the perceived pipe; ie: some connect-level heuristics to do proper PMTUD and _make the answer available to applications_ would probably be useful. > I have been an advocate of the bigger defaults is better camp, but there is > a real concern that the wrong values could actually cause more damage than > their gain is worth. If the above list is incorrect or incomplete it would > be useful for people to constructively tell Peter that now. That's the only one that I can see that you missed. Any effort expended to improve the quality of the default stack in Win9X would probably be A Good Thing... given the current population of the net. Cheers, -- jra -- Jay R. Ashworth [email protected] Member of the Technical Staff Unsolicited Commercial Emailers Sued The Suncoast Freenet "Two words: Darth Doogie." -- Jason Colby, Tampa Bay, Florida on alt.fan.heinlein +1 813 790 7592 Managing Editor, Top Of The Key sports e-zine ------------ http://www.totk.com