On 25/11/2018 21:43, Ben Cannon wrote: > At this point, with 400g coherent in production never mind long-haul > testing; why bother lighting with anything slower than 100g coherent, > especially at essentially the same price. It just makes no sense. > It got skipped. We’re better for it IMO.
To be fair, I did say that to begin with. ;) Outside of the US, in our quaint little European countries, passive muxing with direct detect does often make more sense financially Those coherent hardware providers have some eye-watering price lists, and only begin to make sense on spans >100km. Or if you actually need 400G transport to make use of N*100G services. -- Tom
