Rwin is not mulpitples of mss

Cronicus · Post by **Cronicus** » Fri May 13, 2005 9:52 pm

actualy rwin is multiples of mss but
dont let this determine ur rwin ppl who have, have been brainwashed by
"the old ways"
the best mss is indefnitly 1460

The formula for finding your "ideal" RWIN, is to take your latency (average ping time in ms x 1.5), multiply that by your advertised (download) speed, and divide that by 8.
example of mine
100ms
x
1.5
-------150

150
x
6223 but well just say 6000 to prevent overload
-------900000

900000
/
8
----112500 <--------ahhahahhahahha

mnosteele52 · Post by **mnosteele52** » Fri May 13, 2005 10:05 pm

Are you trying to reinvent the wheel?

(Maximum Bandwidth x Maximum Anticipated Latency) / 8

Example of a connection with a 3000 download cap with a maximum latency of 100 ms:

(3000 x 100) / 8 = 37500 To make it a multiple of MSS divide by 1460:

37500 / 1460 = 25.68 Then round up to the nearest even whole number:

26 x 1460 = 37960 - Optimum RWIN

mccoffee · Post by **mccoffee** » Sat May 14, 2005 3:22 am

this guy spamed the whole board with this rwin doesn't have to be mss mutiple if that is the case call microsoft,cisco, a few other compaines tell them they are wrong

I guess we are brainwashed for thinking that way of rwin and mss so if he is the only one that i'm aware of saying this why has it been written like that in alot of companies perspective of ths stack. Why is he trying to brainwash the board all 15 post of pointless utter bs , with only his veiw of rwin calculation wow brilliant with no other wrtten documention from any source but what's in his head.

Steele we should let this guy take over the boards it will save me alot of headaches, also give me more time, wow just wow

Cronicus · Post by **Cronicus** » Sat May 14, 2005 12:54 pm

first of all i am reinventing the wheel, or just expresing the new design
microsoft.com, and network artictechs have expressed these new settings and i dumbfounded by there sucess
u alreeay saw my crudeintals im shur of it so
try it, and be honest when u exlaim ur new results to, stop being so stubbon ignorant and repetaive, when 56k frist cam out external modems were the "thing" they were fast nice and reliable when internal modems came to be
ppl were like no way they couldent grasp the consept counldent cope with"the new wheel" to this day thew most proficeint 56k modems are internal
think of it this way
after u try my advice"and i so do hope u do" ull be thinking in the terms of a new rounded translucent wheel hahaha
comon man it wil give u sumting to add to ur list of suggested tweaks
comon man would i be wasting all this time bombarding these forums with this new seting if i didnt have sum kind of sound proof, if i just woke up one day and decoded to configure rwin this way rofl
loook man im sorry if im disrupting ur foroum with my "radical new ideas" but soon these radical ne wideas will be "the way its done"
so cheers mate and pls
for gods sake
just try it
and ill shut up

mccoffee · Post by **mccoffee** » Sat May 14, 2005 1:07 pm

then guide me to this new relavation form microsoft.com this so called rwin without mss i haven't seen it yet

mnosteele52 · Post by **mnosteele52** » Sat May 14, 2005 1:16 pm

Cronicus I PMed you trying to keep things off the boards but you didn't reply. You are SPAMMING evey thread with your nonsense, you have NO credentials and it shows. You direct your "proof" to DSLR..... I rest my case.

You and many others like you make up your own way of "tweaking" and act like it's some great new revelation...... it's not, it's what YOU made up.... no facts, no proof. You keep saying this is from Microsoft.... please post a link.

Here is a quote from Microsoft for you:

The TCP receive window size is the amount of receive data (in bytes) that can be buffered at one time on a connection. The sending host can send only that amount of data before waiting for an acknowledgment and window update from the receiving host. The Windows 2000 TCP/IP stack was designed to tune itself in most environments and uses larger default window sizes than earlier versions. Instead of using a hard-coded default receive window size, TCP adjusts to even increments of the maximum segment size (MSS) negotiated during connection setup. Matching the receive window to even increments of the MSS increases the percentage of full-sized TCP segments used during bulk data transmission.

The receive window size defaults to a value calculated as follows:

1. The first connection request sent to a remote host advertises a receive window size of 16 KB (16,384 bytes).

2. Upon establishing the connection, the receive window size is rounded up to an increment of the maximum TCP segment size (MSS) that was negotiated during connection setup.

3. If that is not at least four times the MSS, it is adjusted to 4 * MSS, with a maximum size of 64 KB unless a window scaling option (RFC 1323) is in effect.

Cronicus · Post by **Cronicus** » Sat May 14, 2005 4:40 pm

look it is microsoft who is pionering these new setings
cable reports/dsl reports was the first to release em however
what they didnt release was how it was based on svr protocls for the inernet2
and used a identical forumla to cacualte ur rwin as i have explaned
microsoft.com has not released any statements verfieng this exact truth
network architects "working on the b;lueprints for the internet 2, where i work
not directly with this but i hyave seen the cfg's if u will of the new protocls for the internet2
this is a breakthrough completly but the next step is testing on the internet1
soon u will hear about it from other locations from me indefntly, u just dont understand it maybe because of how i went out to prove or test it
i am done with this foroum
close m,y account ban it it dont matter
my work is done

mnosteele52 · Post by **mnosteele52** » Sat May 14, 2005 4:53 pm

OK first you need to install iespell and check your posts, I'm not trying to be a jerk but I seriously cannot understand half of what you write.

Well just FYI, Microsoft has never released a "formula" for finding one's optimum RWIN. If you know anything about TCP/IP you would know that Microsoft made it self-tuning i.e. automatically adjusts the optimum RWIN.

Basically you are making things up.... and still have not posted a link to your so called "findings".

Internet2 develops and deploys advanced network applications and technologies for research and higher education, accelerating the creation of tomorrow's Internet.

It makes a little sense now..... you are like a member who used to post here quite a lot..... you read things but don't understand them yet think you do understand them.