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tcp/ip connection limit reached
Posted: Tue Nov 09, 2004 2:51 pm
by enderzero
If you weren't aware, with SP2 Windows has been limited to 10 TCP/IP connections per second (from SP1's unlimited). This can result in a slow ramping up of torrent downloads. There is more info and a fix at
speedguide.net.
Posted: Tue Nov 09, 2004 5:15 pm
by McNevin
Yeah I saw that a few months back, didnt really look to much into it.
10 connections per second is enough for me.
TCP/IP has reached the security limit imposed on the number of concurrent TCP connect attempts.
Posted: Tue Nov 09, 2004 5:54 pm
by danz
I was just going to post a question on here as to why my torrents were downloading so slowly! you read my mind ender
Posted: Wed Nov 10, 2004 12:58 am
by enderzero
Yours may be more affected by the UW network and all the sniffing they seem to do Danz. McNevin knows a thing or two about their setup and may be able to fill in some blanks.
Posted: Wed Nov 10, 2004 12:24 pm
by McNevin
Well it has been 6 years; they didn’t have an anti-bit torrent dept back then.
If you are continuing to download torrents, despite your warning, I would probably install "peer guardian."
http://methlabs.org/methlabs.htm
Peer guardian was recommended to me by the ISP that I work for. I talked to our security department, after I was busted, and they said this should do the trick.
Have you tested the speed caps you getting in your dorm? They have several T3's but I doubt they would not limit the student's connections a little. I would try and find your maximum upstream bandwidth, and then cap your BT upload at 80% of that. I set mine really conservatively at 60%, but I have a pretty low upstream.
Posted: Wed Nov 10, 2004 12:49 pm
by danz
thanks...
errr...I am not as computer savy as you guys, so how do I do all that fancy-shmancy testing and caping...
I am not using torrent to download illegal stuff these days...mainly just music from etree.org
what exactly does methlabs do?
Posted: Wed Nov 10, 2004 1:00 pm
by McNevin
The methlabs peer guardian has a list of anti peer to peer baddies, and it blocks any transmission to those addresses.
What i did was go to
http://speedtest.dslreports.com
Their speed test gaqve the following results...
Your download speed : 2790966 bps, or 2725 kbps.
A 340.6 KB/sec transfer rate.
Your upload speed : 363442 bps, or 354 kbps.
So my upload is 354 kilobits, so then convert that to bytes 354 / 8 = 44.2 Kilobytes Per second.
Then we want to get 80% of that, 35 roughly.
In your BT client you will see maximum overall upload rate somewhere, force that to XX, in my case it was 35. You should see some improvement.
Posted: Wed Nov 10, 2004 1:05 pm
by McNevin