[105333] in North American Network Operators' Group
Re: Cable Colors
daemon@ATHENA.MIT.EDU (Jay R. Ashworth)
Tue Jun 17 17:15:40 2008
Date: Tue, 17 Jun 2008 17:15:22 -0400
From: "Jay R. Ashworth" <jra@baylink.com>
To: nanog@nanog.org
In-Reply-To: <BEE3F305-83CB-45D5-B495-972231B396A5@ca.afilias.info>
Errors-To: nanog-bounces@nanog.org
On Tue, Jun 17, 2008 at 01:28:38PM -0400, Joe Abley wrote:
> The initial cable install for the pre-provisioned servers was done
> with much planning and documentation by people who did data cabling
> for a living, and was correspondingly tidy. The cables were all blue.
> Any change that was required after that was installed using a red cable.
>
> Once per week the data cabling people would return, within a posted
> window, and replace the temporary red patch cables with cut-to-length,
> tested, blue cables which were run according to the larger cabling
> strategy, and rigourously documented.
Ah yes, the 'purple wire' technique.
I forget which book it's mentioned in, but it had to do with really old
wire-wrapped computer boards. If you had to put in such a 'hack' wire,
you did it in purple so it would stand out.
Cheers,
-- jra
--
Jay R. Ashworth Baylink jra@baylink.com
Designer The Things I Think RFC 2100
Ashworth & Associates http://baylink.pitas.com '87 e24
St Petersburg FL USA http://photo.imageinc.us +1 727 647 1274
Those who cast the vote decide nothing.
Those who count the vote decide everything.
-- (Joseph Stalin)
