Re: [Mldonkey-users] Re: here's a guy that I stupidly offended because this wasn't clear

[Sven Hartge]

Um 18:12 Uhr am 31.12.02 schrieb Pierre Etchemaite:
> Le Tue, 31 Dec 2002 11:02:25 +0100, address@hidden a écrit :

>> Multicast allows uploading from one source with many different
>> receivers. In this case sum of uploads * receivers == sum of
>> downloads. AFAIK it cannot be used in the Internet / with most
>> providers but only in local networks.
>> I wonder if there would be any way to utilize this for filesharing.

>>From JungleMonkey FAQ:
>  2.5. Why don't you use IP Multicast?

Well, Multicast in the form of the MBone is dead. Some WANs, like the DFN
(Deutsches Forschungs Netz / German Researchers Network, connection most
of the Universities) use it, but in the wide/wild Internet, this form of
data distribution is dead.

And Multicasting only makes sense, if you _exactly_ send the same data to
many peers, and by _exactly_ I mean the the same time the same data.

But since many peers request different chunks and even different
start-points inside one chunk, this ends up in Unicasts anyway.

Multicast is very nice, if you for example set up 300 computers from a
master server (pool rooms in schools, etc.): just insert a boot disk with
the receiver into every computer, broadcast your hd-image across the LAN
and voila, 300 PCs configured in 30 minutes while you are at your coffee
break.

S°