Le samedi 06 novembre 2010 à 12:15 -0700, George Bonser a écrit : > > Sent: Saturday, November 06, 2010 9:45 AM > > To: nanog@nanog.org > > Subject: Re: RINA - scott whaps at the nanog hornets nest :-) > > > > On 11/5/2010 5:32 PM, Scott Weeks wrote: > > > > > > It's really quiet in here. So, for some Friday fun let me whap at > > the hornets nest and see what happens...>;-) > > > > > > > > > http://www.ionary.com/PSOC-MovingBeyondTCP.pdf > > > > > > > SCTP is a great protocol. It has already been implemented in a number > > of > > stacks. With these benefits over that theory, it still hasn't become > > mainstream yet. People are against change. They don't want to leave v4. > > They don't want to leave tcp/udp. Technology advances, but people will > > only change when they have to. > > > > > > Jack (lost brain cells actually reading that pdf) > > I believe SCTP will become more widely used in the mobile device world. You > can have several different streams so you can still get an IM, for example, > while you are streaming a movie. Eliminating the "head of line" blockage on > thin connections is really valuable. > > It would be particularly useful where you have different types of traffic > from a single destination. File transfer, for example, might be a good > application where one might wish to issue interactive commands to move around > the directory structure while a large file transfer is taking place. > > If you really want to shake a hornet's nest, try getting people to get rid of > this idiotic 1500 byte MTU in the "middle of the internet"
I doubt that 1500 is (still) widely used in our Internet... Might be, though, that most of us don't go all the way to 9k. mh > and try to get everyone to adopt 9000 byte frames as the standard. That > change right there would provide a huge performance increase, load reduction > on networks and servers, and with a greater number of native ethernet end to > end connections, there is no reason to use 1500 byte MTUs. This is > particularly true with modern PMUT methods (such as with modern Linux kernels > ... /proc/sys/net/ipv4/tcp_mtu_probing set to either 1 or 2). > > While the end points should just be what they are, there is no reason for the > "middle" portion, the long haul transport part, to be MTU 1500. > > http://staff.psc.edu/mathis/MTU/ > >
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