BitTorrent embraced, extended
http://blogs.siliconvalley.com/gmsv/]
Over at Microsoft's research labs in Cambridge, England,
they're cooking up a peer-to-peer network designed to distribute large
files, legally. Dubbed Avalanche, the technology is similar to BitTorrent in
that it distributes large files among peers as easily transferable fragments…
Typical Redmond move; if they cannot
make it; the answer is to buy it, throw lawyers at it; or try and duplicate it
while forcing a change to the standard. Remember their efforts to bastardize
Kerberos with AD?
http://blogs.siliconvalley.com/gmsv/]
<div
xmlns=”http://www.w3.org/1999/xhtml”>Over at Microsoft’s research labs in
Cambridge, England,
cooking up a peer-to-peer network designed to distribute large files,
legally. Dubbed Avalanche, the technology is similar to BitTorrent in that it
distributes large files among peers as easily transferable fragments to be
reassembled on a requesting machine. But, according to Microsoft’s Peter Key, it
improves on Bram Cohen’s pioneering technology by eliminating the bottlenecks
that often crop up around the last, “rare” pieces of a file. And, of course,
the system prevents users from redistributing copyright material, because
Avalanche will only forward files that have been signed by the publisher.
“Existing P2P file delivery systems use swarming techniques to simultaneously
obtain different pieces of a file from multiple nodes,”
creators explain in a research document. “One problem of such systems
is that as the number of receivers increases it becomes harder to do optimal
scheduling of pieces to nodes. …Avalanche fixes these problems using network
coding. Instead of distributing the blocks of the file, peers produce linear
combinations of the blocks they already hold. Such combinations are distributed
together with a tag that describes the parameters in the combination. Any peer
can generate new unique combinations from the combinations it already has. When
a peer has enough independent combinations, it can decode and build the original
file.”</div>
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