Ethernet over SDH tutorial/concepts.

Dear NANOGers,

We are in process of choosing a new corporate ISP for our company. One of them offered us connection to their backbone using Ethernet over SDH. I'd like to find some introductory texts or prospects about that technology and some advice about its pros/cons when compared to traditional data circuits.

Abra�os,
Marlon Borba, CISSP.

This is most likely something like RPR/802.17 which is Ethernet over
Sonet/SDH.

Cheers
Paul