DWDM Optics cheaper than CWDM Optics?

Luke Guillory lguillory at reservetele.com
Tue Jan 31 15:37:00 UTC 2017


I've bought at least 20k in optics from them in the last 2 years, from QSFP DAC, QSFP to 10g breakouts and everything in between and the only thing to fail was 1 QSFP breakout cable.  A partner of ours uses their DWDM optics and passive MUXs while I've used their CWDM with no issues.

Luke Guillory
Network Operations Manager

Tel:    985.536.1212
Fax:    985.536.0300
Email:  lguillory at reservetele.com

Reserve Telecommunications
100 RTC Dr
Reserve, LA 70084


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-----Original Message-----
From: NANOG [mailto:nanog-bounces at nanog.org] On Behalf Of Karl Gerhard
Sent: Tuesday, January 31, 2017 9:17 AM
To: nanog at nanog.org
Subject: DWDM Optics cheaper than CWDM Optics?


fs.com offers DWDM optics that are cheaper than CWDM optics:
CWDM 80km 10G for 600$ http://www.fs.com/c/cisco-cwdm-sfp-plus-2425?70-80km
DWDM 80km 10G for 420$ http://www.fs.com/c/cisco-dwdm-sfp-plus-2485?70-80km

This is significant.
Is this for real? Has anybody bought their DWDM optics?

Going with DWDM and passive Mux/Demux seems to be cheaper nowadays than going with CWDM.


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