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Re: CWDM equipment (current favorites) (fwd)
On Mon, 30 Oct 2006, Deepak Jain wrote: > A few years ago, NANOG had a discussion regarding various CWDM vendors. > Repeatedly MRV was brought up as a good option for metro-area LAN type > applications. There's been some discussions more recently, such as (coauthored by yours truly): http://www.nanog.org/mtg-0606/pdf/lightning-talks/4-pilosov.pdf http://www.nanog.org/mtg-0610/presenter-pdfs/pilosov.pdf > Since then, I have actually touched some of the MRV product line > personally and found it (and their customer support)... less than ideal. > (not comparing to anyone else, and no one is really ideal). > > The bigger problem was that the devices seem to be less than intuitive, > but rock solid once they are working. (which is what everyone praised > them for). Passive CWDM gear is pretty much all created equal as far as intuitiveness in how to connect it (assuming gear is non-broken). You have muxes, you have SFPs/GBICs, and you plug GBIC output into the mux input. :) As far as the SFP/GBIC quality, I think MRV is very good. At one point, (maybe even still) Cisco OEM'd MRV gbics under their brand (and with attendant 1000% markup). You can also look at cubo and infineon optics, good quality at reasonable price. Be wary about chiwanese vendors - quality is questionable: high DOA rate, output light level and input sensitivity vary from one module to another. Pricewise, you might find that cubo isn't *that* much more expensive than chiwanese gear. Also, there's market (like, again, from yours truly) of the new-in-box MRV gear, which may also be an option. > We need to place a new order for some new fiber builds and were > considering some other vendors. Especially in the nx2.5G and nx10G (are > CWDM x-cievers even available in 10G yet?) range. Anyone have any new > favorites? 2.5G are only slightly more expensive than 1G - if you have OC48 gear that is SFP-capable, by all means, use that. 10G CWDM is *rumoured* to exist, but I don't think there are any production ones yet. Feel free to correct me. 10G is all DWDM, and so far very pricy.