What to do about throttling by an ISP?

Now its a well known fact that ISP like Airtel,BSNL etc are throttling Bittorrent traffic.


Right now i am downloading a Linux Distro from a well seeded torrent.
90seeds and 5leachers.
Availability: 62.993
Seeder to leacher ratio:18


so i am sure i can get max of it but i only get around 193kBps.
whereas in http download i easily reach 217kBp to 222kBps.
so i am not getting my full speed here.
i also have Encryption enabled.


ISP: BSNL Broadband
Plan: Home 500


So What to do about throttling by an ISP?

i dont think BSNL throttles bittorrent traffic...besides, in torrents you'll always get speeds lower as compared to the http counterpart...agreed there are 90 seeds, but to how many seeds are you connected...??? the max i get on private trackers is 210kBps else it lingers around 185 to 195 for heavily seeded torrents...
try out a torrent from private tracker...

Try to patch tcpip.sys to increase the maximum simultaneous half-open (incomplete) outbound TCP connection attempts per second that the system can make (if u r using Windows) and see if you get more seeds...

More details here:
Windows Vista tcpip.sys Connection Limit Patch for Event ID 4226

Ignore if u already did that (or if u r using Linux )

is there anything like peerguardian for vista....
that might help

^^^ peer-guardian is just an ip filter...it wont speed up your torrents...
the patch posted by 4dhir will help though...apply that patch and increase the "net.max_halfopen" in your utorrent to "50"...

@ Gaurish - No reason to worry, most of my downloads on well seeded private trackers max out at 200KBps while HTTP downloads hover around 250KBps on an average.

I'm sure if you have 2 or more torrents running, your net B/W will be around 260-270KBps. If that isn't the case then your ISP is throttling traffic.

Source - http://torrentfreak.com//images/vuze...in-results.pdf
All the major Indian ISPs - BSNL, VSNL, Reliance, Airtel are in that list.

PC World - Elude your ISP's BitTorrent blockade

BSNL doesn't throttle torrents.
If you are getting 'only' 200k instead of 217k, rest assured you aren't being throttled

link not opening

I agree, in my experience BSNL doesn't throttle torrents, yes there are times their servers are dead slow or DNS poisoning happens. In such cases even the browsing doesn't work.

Since BSNL has changed my DSL Profile to 5 Megz downstream and 1 Megz Upstream. I am getting between 250-300 KB.
On old profile 2048/256 . i was max. getting 200-205 KB.
Uploading is still capped at 16 KB though.
BSNL doesn't throttle for sure.

how you guys are so sure?
any reason or thoery behind it?
why speeds are always less then what i get in torrents?


@ComradE_BeaN
try this --> http://digit.wsnw.net/uploads/pr11april08no34.pdf

why would they throttle the bandwidth by mere 10-20kBps...and if they do, then everyone should be facing this issue, isnt it...but that isnt the case...
and the pdf file is about mobile number portability...

Yup,IF they did throttle torrents then you wouldn't even get 20KBps speed.
10-20KBps less than HTTP download speed is quite good for torrents.