I work at an ISP and we are looking to segregate our local markets into their own networks, right more it all operates on one large erps ring. We are considering multiple wavelength or expansionary network cards. The cards and sfps wil cost like 30k - 40k but offer a lot of room for growth in our largest market. I have no idea the cost of multiple wavelengths equipment but that's our consideration.
We have the fiber to just expand easily without multiple wavelengths. Can anyone provide real pros and cons of cwdm/dwdm?
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