LAN PHY dominates in the US too. Requests for WAN PHY were almost exclusively for terrestrial backhaul extending off of legacy subsea systems that still commonly had TDM-framed services. It’s been a couple of years since I’ve been in optical transport directly but these requests were essentially non-existent after 2018 or so. OTN became somewhat more common from 2014 onward as optical system interop improved, but actually was more common in the enterprise space as providers would generally go straight to fiber in most use cases, and with dark fiber opex costs coming down in many markets, I see OTN requests as winnowing here as well.
Dave Cohen craetd...@gmail.com > On Apr 20, 2024, at 7:57 AM, Mark Tinka <mark@tinka.africa> wrote: > > > >> On 4/20/24 13:39, Saku Ytti wrote: >> >> >> Oh I don't think OTN or WAN-PHY have any large deployment future, the >> cheapest option is 'good enough'... > > And what we find with EU providers is that Ethernet and OTN services are > priced similarly. It's a software toggle on a transponder, but even then, > Ethernet still continues to be preferred over OTN. > > Mark.
