Supernode (networking)

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For other uses, see supernode.

In peer-to-peer networking, a supernode works as one of that network's relayers and proxy servers, handling data flow and connections for other users. This usually requires a fairly fast Internet connection with a lot of bandwidth and a modest amount of CPU time, as a lot of data will invariably pass through the supernode and needs to be processed.

Some peer-to-peer designs allow for the user to choose whether they ever want to be treated as supernodes; others do not. Skype by default is configured as a supernode, an issue that has caused controversy.

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