[yusyusyus]

as a predominantly wave-purchaser than builder, it matters when it matters and it doesn’t when it doesn’t.

we get by fairly well assuming l1 is working as designed when the light is on and not throwing errors.. at least on day-to-day ops. planning/sourcing is a bit of a different thing.

one note to your point though, back when people were still regularly picking up OC3s or doing frame relay or whatever, it was certainly more day-to-day to understand these things, but cant really fault anyone since most of that junk has gone away and we’re left with the happy ethernet handoff. especially in small scale DC/enterprise. cloud, too, made us care less.