nanog mailing list archives

Re: Sonet protection usage


From: William Allen Simpson <wsimpson () greendragon com>
Date: Wed, 26 Jul 2000 07:38:08 -0400


William Allen Simpson wrote:

Bora Akyol wrote:
Well-engineered trans-oceanic links are laid such that there are at least
two conduits running parallel
some large distance apart.

And which are those?  I was unaware that any were laid that way.  My
information is dated on that topic, tho'.  (The only one I ever viewed
was pre-optical.)

A note of personal experience on land sonet: about 5 years ago, the 
last time I personally walked a sonet installation, I discovered that 
the "ring" that looked so pretty on the engineering diagrams was 
actually being laid in a single conduit, without even diverse building 
entrances.  Seems the contractor was avoiding costs of right of way 
acquisition.  My report cost the contractor several million in 
penalties and redesign, and me much pain.  And I've never taken a 
sonet contract since.  I'm picky.  You should be, too.

WSimpson () UMich edu
    Key fingerprint =  17 40 5E 67 15 6F 31 26  DD 0D B9 9B 6A 15 2C 32



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