New CenturyLink PK5001z does not support receiving OAM cells
I work as an ISP that partners with CenturyLink. Many of our customers are on PK5000z modems and recently I noticed they have started shipping out PK5001z models. I enable OAM management on our PVCs so that OAM cells are sent to the modem once per minute which helps us identify when DSL circuits go down. This has worked great so far on older modems and the 5000 but for some reason the 5001 does not respond to OAM cells, despite the data sheet stating it supports it.
I will be getting a 5001z myself soon to check out, but has anyone heard of this, or know why? I can't imagine why they would disable this feature.