Elephants on the network – LFNs (Long Fat Networks), Bandwidth Versus Latency

Monday, April 30, 2007

I can’t tell you how many times I have had to explain to someone who has just updated their connection to 10, 45, 100 Mb so they can quickly transfer there critical files to the other side of the planet only to find they aren’t getting any better throughput than they had before. This is a common misunderstanding about the relationship between bandwidth and throughput. The bottleneck is not the bandwidth, it’s the latency, and it is tough to argue with the speed of light.

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On Mistakes and Errors

Thursday, April 26, 2007

There was an interesting quote I read today in Michael Shermer’s Skeptic column in Scientific American this month.

This administration intends to be candid about its errors. For a wise man once said, “An error does not become a mistake until you refuse to correct it.” We intend to accept full responsibility for our errors… We’re not going to have any search for scapegoats… the final responsibilities of any failure are mine, and mine alone.

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That Pesky Close Door Button

Monday, April 23, 2007

I work in a building with an elevator. Just about every day I am in the elevator with someone who is furiously pushing the door close button. Some days I just laugh to myself, others I need to restrain myself from throttling the individual. When I feel generous, I tell the person the truth, pushing that button won’t make the doors close faster.

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