supernode


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supernode

(1) A user's computer in a peer-to-peer network that acts as a relay between one user and another. Supernodes are typically established automatically by the peer-to-peer software based on current network traffic and the capabilities of the user's machine. Users may have little or no control whether their machines become supernodes, or they may have the option to not participate. See Kazaa and Skype.

(2) (SuperNode) The computing platform for Nortel Networks DMS switches. The SuperNode manages the call flow throughout the duration of a call. See DMS and XA-Core.
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Consider a diagonal factor block of a supernode, viewed as a 3-by-3 block matrix with roughly equal block sizes,
One-way key derivation means that each node would generate the succession keys by itself while the supernode has no need to distribute fresh keys to those members; thus, it can reduce communication rounds in rekeying process.
(58.) Napster employed a supernode at its main indexing servers.
(91) The Grokster defendants, however, through "supernode" peer-to-peer software, had completely eliminated the need for a central server.
As mentioned already, there may be situations where the supernode may produce cascading breakdowns in hubs and nodes directly connected to it, which could eventually bring down a network.
It uses no more storage than a sparse Cholesky factorization of a positive definite matrix with the same sparsity structure due to restricting the pivoting to interchanges within the diagonal block associated to a single supernode. The coefficient matrix is perturbed whenever numerically acceptable 1 x 1 and 2 x 2 pivots cannot be found within the diagonal block.
Some topics detailed include scalable supernode selection in peer-to-peer overlay networks, a packet-level traffic model of Starcraft, a method for P2P file-sharing traffic detection, and a scalable coordination space for decentralized distributed environments.
Additionally, the process is dynamic; a user's node, the end point, could variably become a "supernode," which accumulates information from other nodes, automatically, based on resource needs.
In using Grokster's "supernode" or "FastTrack" technology, originally developed by KaZaa, a person seeking to download a work is connected to the most accessible "supernode", an individual computer on the network designated as an indexing server.
Telx, New York, N.Y., the first and largest carrier-neutral interconnectivity "SuperNode" in New York City, is offering RAPID VoIP, the capability to provide Rack, Access, Power, and Instant Delivery to Voice over IP Providers.