Re: constant FEC errors juniper mpc10e 400g

[borg () uu3 net]

Erm, WAN-PHY did not extend into 40G because there was not much
of those STM-256 deployment? (or customers didnt wanted to pay for those).

WAN-PHY was designed so people could encapsulate Ethernet frames
right into STM-64. Once world moved out of SDH/SONET stuff, there was
no more need for WAN-PHY anymore.


---------- Original message ----------

From: Mark Tinka <mark@tinka.africa>
To: Dave Cohen <craetdave () gmail com>
Cc: nanog () nanog org
Subject: Re: constant FEC errors juniper mpc10e 400g
Date: Sat, 20 Apr 2024 17:50:04 +0200


WAN-PHY did not extend to 40G or 100G, which can explain one of the reasons it
lost favour. For 10G, its availability also depended on the type of device, its
NOS, line card and/or pluggable at the time, which made it hard to find a
standard around this if you built multi-vendor networks or purchased backhaul
services from 3rd party providers that had non-standard support for
WAN-PHY/OTN/G.709. In other words, LAN-PHY (and plain Ethernet) became the
lowest common denominator in the majority of cases for customers.

Mark.