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Technology Stocks : The *NEW* Frank Coluccio Technology Forum -- Ignore unavailable to you. Want to Upgrade?

To: Frank A. Coluccio who wrote (21681)	12/15/2007 11:27:16 PM
From: Frank A. Coluccio	Read Replies (2) \| Respond to of 46821

Network coding: networking's next revolution? By Jim Duffy, Network World, 12/10/07 FAC: We've discussed network coding here in the past, most recently prompted by a Scientific American article, here: #msg-23580474 (uplinked). Interestingly, this technique can be viewed as depending on the use of deep packet inspection, although NOT from a contextual standpoint, but rather going farther down to the bit level, where coding operations are performed, instead. For a glimpse at the network coding work being done at Microsoft, see: tinyurl.com ] Network coding could re-engineer routing, content distribution and wireless, vendors and researchers say. Some of high tech’s biggest names – Microsoft, HP and Intel among them – are starting to embrace a technology called network coding in an effort to boost throughput, scalability and efficiency of everything from content distribution to wireless networks. Network coding, largely shrouded in university and vendor labs since it was proposed seven years ago by a handful of researchers, is essentially an algorithm that proponents say can potentially more than double network throughput while also improving reliability and resistance to attacks. Network coding’s most ardent supporters say the technology could spark networking’s next revolution, while others say network coding is more likely to quietly infiltrate network architectures based on existing routing schemes. Network coding works by separating messages into smaller bits of “evidence” that can then be deduced by the destination node without transmitting, retransmitting or replicating the entire message. It enables this evidence to traverse multiple paths to and from intermediary nodes which then send it on to the endstation. It does not require additional capacity or routes – it simply mixes evidence of messages into bit streams already supported by an existing network infrastructure. "It’s like eavesdropping: You listen to what’s going on around you, you form an opinion, and then you improve the overall throughput and capacity by actually remembering and using the information you have,” says Sumeet Sandhu, principal investigator for cooperative wireless communication at Intel Research. Click to see: Diagram of network coding: Cont.: networkworld.com ------