[20608] in North American Network Operators' Group
Re: SONET ring questions
daemon@ATHENA.MIT.EDU (Austin Schutz)
Sun Oct 18 01:41:26 1998
Date: Sat, 17 Oct 1998 22:28:53 -0700
From: Austin Schutz <tex@shrubbery.net>
To: David Greer <david-greer@gnc-hq.com>, Peter Polasek <pete@cobra.brass.com>,
nanog@merit.edu
In-Reply-To: <002201bdf8fe$358174a0$be0b020a@ts1dag.gnc-hq.com>; from David Greer on Fri, Oct 16, 1998 at 08:12:11AM -0400
>>2) We have the option of using either single-mode or multi-mode fiber
>> OC-3 connections - what factors should be considered in selecting
>> the fiber media type.
>
>
>Look at the distance, I believe multi mode is only good for a couple of
>miles, then you have to go single mode, which will drive your costs up.
>
If you want to make a good ball-park guess as to whether or not
multimode will work for you it would probably be worthwhile to see:
http://www.cisco.com/univercd/cc/td/doc/product/core/cis7505/ipicg/ipicgpos.htm
Multimode fiber has the disadvantage that it it not capable of as high
bandwidth as single mode - a consideration if you are digging a trench for it.
Austin
