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    P2P throttling?

    This is a discussion on P2P throttling? within the Sky Broadband help forums, part of the Sky Broadband help and support category; Originally Posted by Undecided Adrian Now considering the ISP pays for bandwidth used you can suddenly see why throttling is ...

    1. #11
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      Re: P2P throttling?

      Quote Originally Posted by Undecided Adrian View Post
      Now considering the ISP pays for bandwidth used you can suddenly see why throttling is becoming more and more used and attractive as anything that reduces this huge useage means that they possible pay less in bandwidth charges.
      That's certainly the case for Sky's Broadband Connect customers.

      For each customer on Connection, Sky pays BT a fixed rental charge for the line between the exchange and the customer. That gets the customer connected to BT's internal network. Sky then have to pay BT for a network connection between BT's internal network and Sky's Internet network, and that's where the costs really pile up. With capacity-based charging, Sky have to pay for several 622Mbit "pipes" and each one costs over million pounds per year. Allowing people to run P2P applications without throttling would mean having to have, I dunno, maybe four or more times as many pipes, at huge cost to Sky.

      Capacity-based charging is great for ISPs in that they can predict what their BT bills are going to be, far more reliably than with usage-based charging. But the downside is that traffic-shaping is essential if you're going to provide a competitively-priced service, that doesn't slow down to a crawl once the P2P community start cranking up their BitTorrent clients.

      With LLU, however, most of the capacity cost is in the form of one-off setup costs, so providing enough capacity to keep everyone going becomes a practical option.


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    3. #12
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      Re: P2P throttling?

      Quote Originally Posted by marmot View Post
      Before I signed up I was told Sky didn't restrict any P2P traffic, is this correct?
      It's just since migrating download speeds through Azureus are pitiful: <4kbit/s,
      even with many seeds.
      Thanks.
      P.S.
      I've port fowarded by the way and checked in Azureus.
      port foward to anything above 57000 and change Azureus setting to use the same port & your speed will increase
      Last edited by DeeGame; 29-11-07 at 12:57 PM.

    4. #13
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      Re: P2P throttling?

      That is not good advice. Forwarding ports that are not used by the application is pointless, an unnecessary security risk and will have no affect on speed.

      If you mean set Azureus to use a port higher than 57000 then please make your posts clearer (which I see you now have in your edit). In any event, that also is unlikely to make a difference. I believe P2P is "traffic shaped" on Connect, not port "throttled". Traffic encryption may make a difference however.
      Last edited by Saturday; 29-11-07 at 12:59 PM.

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      Re: P2P throttling?

      Quote Originally Posted by Saturday View Post
      That is not good advice. Forwarding ports that are not used by the application is pointless, an unnecessary security risk and will have no affect on speed.

      If you mean set Azureus to use a port higher than 57000 then please make your posts clearer. In any event, that also is unlikely to make a difference. I believe P2P is "traffic shaped" on Connect, not port "throttled". Traffic encryption may make a difference however.
      Firstly sorry for not making my post clearer, i have edited it now to make it clearer.

      i am speaking from my experience regarding forwarding ports to above 57000 when using P2P. Once i changed the port number to above 57000 my download speed increased a lot.

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      Re: P2P throttling?

      If you were previously with an ISP who used port throttling on common low numbered ports then choosing high port numbers could well have helped.

      That's not currently true for Sky Connect (which the OP you were advising has) and certainly not true for Sky LLU. If you experienced higher P2P speeds on Sky LLU with higher port numbers then that would not be anything to do with throttling/shaping.

      BTW, sorry that I snapped at you in response to your earlier post.

    7. #16
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      Re: P2P throttling?

      Mine was already forwarded for a single port above 15000 anyway.
      Thanks.

    8. #17
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      Re: P2P throttling?

      Yes, I don't believe any particular port range will be better than another.

      I have read a few reports though where encrypting the traffic brought about some improvement for Connect customers. I understand Azureus supports encryption - have you tried it? This article may help.

    9. #18
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      Re: P2P throttling?

      Thanks, I'll have a go.

    10. #19
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      Re: P2P throttling?

      I use Bitcome and have had speeds over 700kb/s on the Mid package, this would suggest there is no throttling. I am on a n LLU exchange.

    11. #20
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      Re: P2P throttling?

      Wow, 700kbits/s, the best I've had since switching is 16! Usually much less.
      My line's giving me 5.7mbits/s by the way.

     

     
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