[c-nsp] Support for CFP2

[Nick Hilliard]

Shawn L via cisco-nsp wrote on 19/01/2024 14:58:
> The pluggable optic must be DWDM 1530 to 1563 nm with QPSK modulation that
> fits 50Ghz (~31 to 35Gbaud) and a launch power of ZR+ 0dBm. The customer
> channel should have Rx: Max <-10 dBm/Ch and Tx: Min: >–5 dBm/Ch to Max: <+
> 6.5dBm/Ch in order to meet the GOSNR margin of 2.5dBm or more.

right, so DWDM alien wave requirement then. That's very non-portable and 
kit specific.

Depending on the application, you might be better off ditching the 
requirements that they're imposing and simply using 100G transponders 
(i.e. 100G as a service).  Or something like the smartoptics open line 
system with PAM4 QSFP28 transceivers.

It really depends on what's between you and the other end.  D/F has 
simple options open for single 100G. If you're connecting into something 
more complicated, it can get messy and expensive.

Nick