[120142] in North American Network Operators' Group

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Re: Optical fiber question

daemon@ATHENA.MIT.EDU (Jared Mauch)
Thu Dec 10 13:29:44 2009

From: Jared Mauch <jared@puck.nether.net>
In-Reply-To: <40d8a95a0912101024s57abcd0bu9405c2f3f95b1018@mail.gmail.com>
Date: Thu, 10 Dec 2009 13:28:59 -0500
To: Deric Kwok <deric.kwok2000@gmail.com>
Cc: nanog@nanog.org
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org


On Dec 10, 2009, at 1:24 PM, Deric Kwok wrote:

> Hi
>=20
> My provider said they can provide single / mulit mode Optical fiber
>=20
> Apart from the length and cost different, what is the Adv/Disadv
> between them for our connection?

The advantages are always in the distance capabilities of the single =
mode fiber.  You can reach much further on this, but the optics tend to =
be more expensive.  If you are going a short distance (eg: 2km or less) =
multi-mode is the way.  If you're going to go any further, or want to =
ever go any further, take the extra cost and know you can swap optics in =
the future to do gig, 10G and possibly more (in the future) with less =
pain.

- Jared=


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