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How not to install fibre links between data centres!

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Old Unix and Linux 08-15-2012
gull04 gull04 is offline
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How not to install fibre links between data centres!

Hi Folks,

A couple of years ago we had to replace the core switches between two of our data centres, a simple task for the most part - these new switches would be state of the art Cisco Catalyst units.

The link between the two sites was a dark fibre, with 8Gb bandwidth running full duplex over a redundant cable pair. It was quite a surprise when we started to tidy up the cables to find this - see the attached images.

The cables comprised two male to male cables, with the ends joined with Bluetack. I'm amazed that it worked for so long. - Actually I'm amazed it worked at all!

Regards

Dave
Attached Thumbnails
-bluetack_fairy-jpg   -bluetack_fairy_again-jpg  

Last edited by gull04; 08-15-2012 at 09:33 PM..
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Old Unix and Linux 08-17-2012
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I assume you had the good sense not to touch it.
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Old Unix and Linux 08-17-2012
Corona688 Corona688 is offline Forum Staff  
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Bahaha Unix or Linux Image Wonder if management was impressed with how much they saved... fiber ends cost how much? Unix or Linux Image

You should post these on ThereIFixedIt Unix or Linux Image
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Old Unix and Linux 08-18-2012
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Amazing! Never had to deal with anything like that, thank goodness.
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Old Unix and Linux 08-19-2012
methyl methyl is offline Forum Advisor  
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I trust that the local fibre welding company sorted your problem. Usually costs 1,000 per half-day. The repair kit is rather expensive to own.

We had a case where BT arrived to install a 100-core telephone cable. Rather than use the vacant duct labelled for the purpose, they decided to pull their cable through a duct which was dedicated to inter-building fibre optic communications. When the cable jammed they used a van to pull the cable. They managed to knock out 13 sites by destroying multiple fibre optic cables. The cable duct lining was also destroyed in the process.

A 100,000 repair was carried out in just three days. This included excavating and repairing the damaged duct and replacing two miles of fibre optic cable). The "engineers" concerned were banned from site.

The second attempt to install the telephone cable was heavily supervised and went without incident.
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Old Unix and Linux 08-19-2012
Corona688 Corona688 is offline Forum Staff  
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Quote:
Originally Posted by methyl View Post
Usually costs 1,000 per half-day.
Good lord... No wonder they used blu-tack.
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Old Unix and Linux 08-22-2012
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Blu-tack is a really useful product which has many uses in the domain of "sticky-on-the-wall" applications, but has no use the world of fibre-optics.

One day I will dicuss the properties of Araldite as an electical insulator in the context of vandalism.
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