Re: 100GbE beyond 40km

[Edwin Mallette <edwin.mallette () gmail com>]

I just bite the bullet and use 3rd party optics.  It’s easier and once  you make the switch, lower cost. 

Ed

Sent from my iPhone

> On Sep 25, 2021, at 12:29 AM, Joe Freeman <joe () netbyjoe com> wrote:
>
> 
> Open Line Systems can get you to 80K with a 100G DWDM Optic (PAM4) -
>
> I've used a lot of SmartOptics DCP-M40 shelves for this purpose. They also have transponders that allow you to go 
> from a QSFP28 to CFP to do coherent 100G out to 120Km using the DCP-M40, without a need for regen or extra amps in 
> line.
>
> The DCP-M40 is a 1RU box. It looks like a deep 40ch DWDM filter but includes a VAO, EDFA amp, and a WSS I think. 
>
> > On Fri, Sep 24, 2021 at 4:40 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