nanog mailing list archives
RE: dark fiber and sfp distance limitations
From: "John van Oppen" <john () vanoppen com>
Date: Fri, 1 Jan 2010 17:24:31 -0800
The best OTDR data I have ever gotten prior to signing an agreement for strands is the readings from another pair on the same route. That being said most dark fiber agreements have some sort of minimum performance specifications in them. John van Oppen Spectrum Networks LLC Direct: 206.973.8302 Main: 206.973.8300 Website: http://spectrumnetworks.us -----Original Message----- From: William Herrin [mailto:herrin-nanog () dirtside com] Sent: Friday, January 01, 2010 5:11 PM To: ML Cc: nanog () nanog org Subject: Re: dark fiber and sfp distance limitations On Fri, Jan 1, 2010 at 7:24 PM, ML <ml () kenweb org> wrote:
Pardon my ignorance in this area but is too much to ask for OTDR data before signing contracts? In addition to data on the make of the fiber if you wanted to do xWDM in the future.
Yes, it's too much to ask. They won't splice your path until you sign the contracts and you can't get useful OTDR and loss readings until the fiber is spliced. You can probably put an escape clause in the contract that lets you exit with little or no cost if the readings aren't good enough after the fact. If you're not time-constrained, you can probably request a pre-check for a modest fee after main splicing but before trenching to your endpoints. Regards, Bill Herrin -- William D. Herrin ................ herrin () dirtside com bill () herrin us 3005 Crane Dr. ...................... Web: <http://bill.herrin.us/> Falls Church, VA 22042-3004
Current thread:
- Re: dark fiber and sfp distance limitations, (continued)
- Re: dark fiber and sfp distance limitations Justin M. Streiner (Jan 02)
- Re: dark fiber and sfp distance limitations Nick Hilliard (Jan 02)
- Re: dark fiber and sfp distance limitations Mikael Abrahamsson (Jan 02)
- Re: dark fiber and sfp distance limitations Richard A Steenbergen (Jan 01)
- Re: dark fiber and sfp distance limitations Alexander Harrowell (Jan 01)
- Re: dark fiber and sfp distance limitations ML (Jan 01)
- Re: dark fiber and sfp distance limitations William Herrin (Jan 01)
- Re: dark fiber and sfp distance limitations Rene Avi (Jan 02)
- Re: dark fiber and sfp distance limitations Richard A Steenbergen (Jan 02)
- Re: dark fiber and sfp distance limitations Rene Avi (Jan 02)
- RE: dark fiber and sfp distance limitations John van Oppen (Jan 06)
- Re: dark fiber and sfp distance limitations Nick Hilliard (Jan 01)
- RE: dark fiber and sfp distance limitations Frank Bulk - iName.com (Jan 04)
- Re: dark fiber and sfp distance limitations Kevin Hodle (Jan 02)
- RE: dark fiber and sfp distance limitations Martin, Paul (Jan 04)
- Re: dark fiber and sfp distance limitations Kevin Hodle (Jan 04)