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MeirG
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re: Ethernet's 40th birthday sparks reunion at PARC
MeirG   2/28/2013 7:43:46 PM
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IMHO, the token ring is a superior protocol! It is deterministic, one could allocate bandwidth and priority to a given node, and many other benefits. The problem was marketing ant the greediness and over protection of IBM. And look at the current Ethernet! Just a point-to-point, switched network, with a single point of failure.

jmcleod
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re: Ethernet's 40th birthday sparks reunion at PARC
jmcleod   2/26/2013 6:03:17 PM
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Should also point out that the triumvirate of Digital Equipment Corp. (DEC)--remember those guys, Intel, and Xerox also had a hand in creating the 10-Mbit Ethernet standard that prevailed over the IBM token ring network and others. Funny how much history gets lost in time.

selinz
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re: Ethernet's 40th birthday sparks reunion at PARC
selinz   2/26/2013 5:24:59 PM
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It's always amusing to take jabs at Gore for his ridiculous claim.

daleste
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re: Ethernet's 40th birthday sparks reunion at PARC
daleste   2/23/2013 9:42:43 PM
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Its always great to see and hear from the pioneers. Too bad Al Gore wasn't there to chime in.



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As data rates begin to move beyond 25 Gbps channels, new problems arise. Getting to 50 Gbps channels might not be possible with the traditional NRZ (2-level) signaling. PAM4 lets data rates double with only a small increase in channel bandwidth by sending two bits per symbol. But, it brings new measurement and analysis problems. Signal integrity sage Ransom Stephens will explain how PAM4 differs from NRZ and what to expect in design, measurement, and signal analysis.

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