Network Dictionary — Backhoe Attenuation
October 9, 2009 by Greg Ferro · 2 Comments
Backhoe Attenuation — term used to describe the loss of signal (attenuation) of your copper or fibre cable by a backhoe digging your cable out of the ground.
In Service Provider circles, the predator that causes the breakage is often known as a “Long Necked Fibre Eater” to describe one of the few naturally occurring predators for fibre optic cables.
The Long Necked Fibre Eater is particularly nasty predator because it can easily damage several kilometres of cable making a quick fix impossible. A voracious feeder, it can consume hundreds of metres of fibre optic and copper cable in a single feast.
The following image shows the Short Necked Fibre Eater digging for food in a typical urban environment. Note the damage it causes as it forages for food.
And in this very moving photo you can see a “Long Necked Fibre Eater” migrating across an area where they have completely devastated the local ecology by overgrazing.
And this is a very rare shot of a fibre eater in action in an urban environment.
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Define “Knowledge Worker”
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Which is pretty funny.
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Which is even funnier.
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1) Describes a long,and large, stick that is used to move a large object. One of the great fundamental technological advances in the history of human kind.
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2) The word “leverage” in a meeting it a sure sign that things have stopped progressing. Use a long stick to hit the person who said it so they wake up and do something meaningful.
3) The word leverage really means that “someone else will do the work”. As in, “we can leverage that issue and get marketing to change their position” or (far more likely) “I am sure we can leverage our skills …
These nasty fibre predators fear nothing, but one thing. In times of economic depressions, cables are left alone.
Where I live, the most devastating type is Eastern European Migratory Fibre Eater. A particulary nasty type that has no regard for fibre optics (nor GPS).
Once again I’m puzzled that they call us (Ecuador, SA) a third world country. We’ve overcome “Backhoe Attenuation” years ago by hanging our fibre high on poles (or occasionally banana trees). Just remember to hang them high enough to prevent this (http://bit.ly/LEyHN) type of attenuation.