cross connect reliability

Martin Hannigan martin at
Fri Sep 18 17:22:19 UTC 2009

On Thu, Sep 17, 2009 at 5:45 PM, Michael J McCafferty <
mike at> wrote:

[ clip ]

>        I am curious; what do you expect the average reliability of your
> FastE
> or GigE copper cross-connects at a colo?

At the physical layer, near zero. If "jiggling and wiggling" is causing
cable failures, they have bigger problems. The last time I had problems with
"jiggle and wiggle" was with techs walking by ds3 xcon farms and "testing"
if the cables were "taught" enough with respect to the termination hardware.
If you pull on them enough, they will come apart and they will fail.

I'd love to see a picture of their xcon frames.


Martin Hannigan                               martin at
p: +16178216079
Power, Network, and Costs Consulting for Iceland Datacenters and Occupants

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