Use Cases and Requirements for Layer Independent OAM Management in multi-layer environments

As operators deploy and operate multi-layer networks and diverse transport technologies, layer independent Operations, Maintenance & Administration Management (OAM) would be beneficial for monitoring and troubleshooting operations of network and service infrastructure. This document identifies and discusses the key use-cases and high- level requirements for layer independent Operations, Administration, and Maintenance management to facilitate operations and maintenance in multi-layer and multi-domain networks utilizing a wide variety of heterogeneous networking technologies.