Does this have to be Ethernet? You could look into line gear with coherent optics. IIRC, they have built-in chromatic dispersion compensation, and depending on the card, would include amplification.

On Fri, Sep 24, 2021 at 1:40 PM Randy Carpenter <rcarpen@network1.net> wrote:

How is everyone accomplishing 100GbE at farther than 40km distances?

Juniper is saying it can't be done with anything they offer, except for a single CFP-based line card that is EOL.

There are QSFP "ZR" modules from third parties, but I am hesitant to try those without there being an equivalent official part.


The application is an ISP upgrading from Nx10G, where one of their fiber paths is ~35km and the other is ~60km.



thanks,
-Randy


--
Bill Blackford

Logged into reality and abusing my sudo privileges.....