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What does it bring? (2/2) 3/ Specific focus on Service Supervision: Generic & Specific OAM requirements (References draft- Willis & L2VPN OAM Frwk) Fault Detection Fault Localisation Based on well known definitions (OAM Domains, ME, MEP/MIP) used by IEEE, ITU-T and IETF (L2VPN-OAM-Fwk) Defines 3 Generic Models for E2E Service Supervision and applies MEP and MIP points to these models Option 1: Using a specific End to End OAM Mechanism Option 2: Using Interworking between OAM Segments Option 3: Using a Client/Server model These models are "technology agnostic": Applicable to the access network => ATM, FR, Eth, MPLS Applicable to the service (homogenous & heterogenous) => ATM, FR, Eth, TDM |