Re: Upstream bandwidth usage

[Brandon Martin <lists.nanog () monmotha net>]

On 6/10/22 20:17, Mark Tinka wrote:
> We've seen proposals from Huawei, for example, where OLT shelves can 
> support both GPON and XG-PON line cards.
>
> Just not seeing our market going in that direction yet.

This isn't just Huawei. I know at least Adtran can do GPON+XGS-PON in 
the same chassis, and I'm pretty sure I remember Nokia telling me the 
same.  I'd imagine Calix can, too, if the other two big names in North 
America have it.

I know at least Adtran even has a combo card where the same card can 
handle optics with all the filters built in to do XGS-PON+GPON on the 
same fiber without external muxes and only consuming one port.  The 
pricing is even what I'd call not just reasonable but "compelling" for 
immediate deployment even if you don't plan to use the 10G function 
since it would of course drastically extend the useful lifespan of that 
card plus give you in-service upgrades to XGS-PON overlay if you 
equipped it with suitable optics from the get-go (which are also not 
overly expensive).

Given that the parts clearly exist for combo cards with combo optics, 
I'd imagine all of the major players have it in their portfolio at this 
point.

The XGS-PON ONTs are still about double the price of the GPON ONTs last 
I checked.
--
Brandon Martin