The present invention provides a network architecture that interworks OA&M
(Operations, Administration and Maintenance) failure notification data
from the ATM Domain to the Ethernet Domain and vice versa. Failure
indications or notifications are typically routed from one domain to
another within 1-2 seconds; providing service providers and customers the
ability to react quickly to network faults. This enhances the overall
quality of the Ethernet-to-ATM Interworking service and provides a
similar level of reliability across the Ethernet/ATM/FR domains.