nanog mailing list archives
RE: cross connect reliability
From: "Michael K. Smith - Adhost" <mksmith () adhost com>
Date: Thu, 17 Sep 2009 14:54:49 -0700
Hello Michael:
-----Original Message----- From: Michael J McCafferty [mailto:mike () m5computersecurity com] Sent: Thursday, September 17, 2009 2:46 PM To: nanog Subject: cross connect reliability 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? Thanks, Mike
I agree with their Reason for Outage, but it sounds like a design issue. We prewire all of our switches to patch panels so they don't get touched once they're installed. The patch panels are much more friendly to insertions and removals than a 48 port 1-U switch. We also have multiple connections on the fiber side to avoid those failures. With all of that, we still have failures, but their effect and frequency are minimized. Mike -- Michael K. Smith - CISSP, GISP Chief Technical Officer - Adhost Internet LLC mksmith () adhost com w: +1 (206) 404-9500 f: +1 (206) 404-9050 PGP: B49A DDF5 8611 27F3 08B9 84BB E61E 38C0 (Key ID: 0x9A96777D)
Current thread:
- Re: cross connect reliability, (continued)
- Re: cross connect reliability Warren Kumari (Sep 18)
- Re: cross connect reliability Chris Adams (Sep 18)
- Re: cross connect reliability Valdis . Kletnieks (Sep 18)
- Re: cross connect reliability Luke S Crawford (Sep 20)
- Re: cross connect reliability Seth Mattinen (Sep 20)
- Re: cross connect reliability Richard Golodner (Sep 17)
- Re: cross connect reliability Mike Lieman (Sep 17)
- Re: cross connect reliability Jon Lewis (Sep 17)
- Re: cross connect reliability Mike Lieman (Sep 17)
- Re: cross connect reliability Jon Lewis (Sep 17)
- Re: cross connect reliability Jon Lewis (Sep 17)