shopik Posted September 10, 2010 Report Share Posted September 10, 2010 I would like to say multicast flood still issue for utorrent, basically now you send updates to multicast address every 5 minutes if user having a lots torrent this will cause really heavy traffic, utorrent should throttle amount of multicast packets/second.There is ISP who start blocking your switchport if you sending huge amount of multicast per second, this is automatically done to prevent network degradation. I can turn this feature off, but this prevent me to use local speeds to download/upload.Please consider this as more like bug fix not feature request, I'll appreciate this, thanks! Link to comment Share on other sites More sharing options...
Ultima Posted September 10, 2010 Report Share Posted September 10, 2010 I can turn this feature off, but this prevent me to use local speeds to download/upload.Er, not really. LPD is just a service to help discover local peers even if they're not on any of the trackers you're connected to. µTorrent can still connect to a peer through traditional means, determine that the peer is local (looking at subnet, or one of various other ways it probably defines a peer as being "local"), and limit/unlimit its bandwidth accordingly. Link to comment Share on other sites More sharing options...
shopik Posted September 10, 2010 Author Report Share Posted September 10, 2010 True. But turning off LPD will not let me discover computers around me which are behind NAT or just having internal addresses and not having internet connectivity at all. Link to comment Share on other sites More sharing options...
Ultima Posted September 10, 2010 Report Share Posted September 10, 2010 Yep, I won't deny that it'd cripple the functionality somewhat. I know DWK directed you out of this thread, but as you'll notice, MyX and arvid have actually discussed a potential way to minimize the number of multicast packets flying around, which arvid has already accepted. Link to comment Share on other sites More sharing options...
shopik Posted September 10, 2010 Author Report Share Posted September 10, 2010 Thanks, looks like I missed somehow this exact message in previous thread. Multi-announce LSD sounds promising. Also 30ms isn't big enough sometimes we need something like 100ms so it won't be over 10 multicast messages per second.So this is is currently ISP just suggest to turn off LPD to prevent be blocked, not big deal I say, but users missing high speed downloads because utorrent don't know who's around. Link to comment Share on other sites More sharing options...
Ultima Posted September 10, 2010 Report Share Posted September 10, 2010 MyX's suggested time scale was in minutes, not milliseconds With good reason too, because as mentioned, new machines don't normally enter networks that often anyway. Link to comment Share on other sites More sharing options...
shopik Posted September 10, 2010 Author Report Share Posted September 10, 2010 ops, my bad this thread about limiting amount of multicast traffic generated per second by utorrent, currently it doesn't have any delay between multicast packets. It's just burst of multicast traffic. Link to comment Share on other sites More sharing options...
Ultima Posted September 10, 2010 Report Share Posted September 10, 2010 Fair enough. If there are enough torrents going, I suppose it'd take multiple packets to get all the LPD requests out even with multi-announce LPD, and in that regard, discussing delay between packets makes sense. Link to comment Share on other sites More sharing options...
Firon Posted September 10, 2010 Report Share Posted September 10, 2010 Compared to the actual amount of traffic uT generates, the rate of packets generated by LPD is really low... Link to comment Share on other sites More sharing options...
shopik Posted September 10, 2010 Author Report Share Posted September 10, 2010 Don't forget difference between unicast and multicast type of traffic. And as Ultima correctly noted if there enough torrents running we could get huge burst of these. Link to comment Share on other sites More sharing options...
Firon Posted September 10, 2010 Report Share Posted September 10, 2010 Even with that, I doubt the PPS would come even close to matching uT's normal torrent traffic. But I don't disagree that we should try to minimize the number of packets with a multi-announce peer discovery mechanism. Link to comment Share on other sites More sharing options...
shopik Posted September 10, 2010 Author Report Share Posted September 10, 2010 You forgetting users who still using internet with speeds below 512Kbits/s :-p but have 100mbit connection to local network Link to comment Share on other sites More sharing options...
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