M40e "AER" and MG9k's

Good morning all,

This is a bit of a longshot, but by any chance is there anyone watching this list who is currently or was formerly with VZ that's familiar with a configuration involving M40e's aggregating a number of customer facing MG9k's over ATM?

We're having a heck of a time with them if you could reach out off list with any background or experiences with them from elsewhere I'd really appreciate it.