RE: Low Cost CWDM or DWDM

[Ryan DiRocco <ryan.dirocco () totalserversolutions com>]

We have been very happy with Adva for our DWDM ring deployments with multiple drop-add points. As always proper 
engineering is critical to make sure you are taking into account the loss points from all the muxes, drop-adds, etc.

Adva's sales / engineering / and subsequent support have been fantastic.

Granted they aren't as cheap as the "low cost" ebay gear out of china but you are getting quality instead of  a 
crapshoot of loss on each mux or drop/add you source.



-----Original Message-----
From: NANOG [mailto:nanog-bounces () nanog org] On Behalf Of Colton Conor
Sent: Tuesday, April 07, 2015 11:00 AM
To: NANOG
Subject: Low Cost CWDM or DWDM

What vendors do you recommend for low cost CWDM / DWDM gear? Assume you have a fiber ring of 50 miles of fiber, and 
want to have  POPs evenly spaced around the ring that you want to jump on and off of. Assume you only have 2 fiber 
strands to work with, but can obtain two more at an additional cost. Does 2 vs 4 fibers make a difference? The goal is 
to be able to offer multiple 10G connections to clients on the ring. All ethernet/wave no support for legacy SONET 
needed. How do you decide between CWDM vs DWDM?

There are so many manufacturers that make transport gear I do not even know where to begin. Is there a guide to 
navigating through the big optical transport vendors? There are over 20 of them, and they all seem to do the same thing 
on paper.