30 May '13, 11pm

A slideshow celebrating ethernet's 40th birthday. #ethernetturns40

Not to detract from the achievements of these smart people, but I don't think that this is the whole story. Necessarily. For example, what Metcalfe did was brilliant, but little of it survives in today's Ethernet. The format of the basic "type" frame, yes. The carrier sense and collision detect protocol, with backoff, not really. That's not how the Ethenets work anymore. Ethernets of today are actually much simpler. Just fire off those frames, and if there's a traffic jam at a merge point, put them in a queue. (And all sorts of more or less implemented schemes for prioriting frames in a queue, which are not really standardized.) If that original CSMA/CD protocol is used at all, it's only as a legacy protocol in a single host-switch interface. Does nothing to control traffic jams anymore. The spanning tree protocol, I studied that from a book called "Flows in Networks," L.K...

Full article: http://www.eetimes.com/electronics-news/4415214/Slideshow...

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Slideshow: Ethernet yesterday, today and tomorrow

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NEW POST * : Happy Birthday to ME!

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