[117539] in North American Network Operators' Group
Re: cross connect reliability
daemon@ATHENA.MIT.EDU (Alex Balashov)
Thu Sep 17 18:02:08 2009
Date: Thu, 17 Sep 2009 17:57:09 -0400
From: Alex Balashov <abalashov@evaristesys.com>
To: Seth Mattinen <sethm@rollernet.us>
In-Reply-To: <4AB2AFAF.50900@rollernet.us>
Cc: nanog <nanog@nanog.org>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
Seth Mattinen wrote:
> Michael J McCafferty wrote:
>> All,
>> Today I had yet another cross-connect fail at our colo provider. From
>> memory, this is the 6th cross-connect to fail while in service, in 4yrs
>> and recently there was a bad SFP on their end as well. This seemes like
>> a high failure rate to me. When I asked about the high failure rate,
>> they said that they run a lot of cables and there is a lot of jiggling
>> and wiggling... lots of chances to get bent out of whack from activity
>> near my patches and cables.
>> Until a few years ago my time was spent mostly in single tenant data
>> centers, and it may be true that we made fewer cabling changes and made
>> less of a ruckus when cabling... but this still seems like a pretty high
>> failure rate at the colo.
>> I am curious; what do you expect the average reliability of your FastE
>> or GigE copper cross-connects at a colo?
>>
>
> Never to fail? Seriously; if you're talking about a passive connection
> (optical or electrical) like a patch panel, I'd expect it to keep going
> forever unless someone damages it.
That's truly wishful thinking, as are the assumptions that insulate it
from damaging factors. Nothing lasts forever.
--
Alex Balashov - Principal
Evariste Systems
Web : http://www.evaristesys.com/
Tel : (+1) (678) 954-0670
Direct : (+1) (678) 954-0671
