Patent ID: 8483072
Filing Date: 2013-07-09
Classification: H04L

Abstract:
1. A Connection Fault Management (CFM) maintenance point for providing Data Driven Connection Fault Management (DDCFM) in a communication network, the CFM maintenance point comprising CFM maintenance point multiplex and demultiplex entities enhanced with an Opcode Demultiplex entity that forwards a first copy of data frames of frame type Send Frame Message (SFM) towards Passive Multiplexers of the CFM maintenance point and a second copy of the SFM data frames towards a Decapsulator Responder, wherein the CFM maintenance point includes a processor coupled to a non-transitory memory, wherein when the processor executes computer program instructions stored on the non-transitory memory, the processor causes the Decapsulator Responder to: receive the SFM data frames from the Opcode Demultiplexer; determine whether the destination address of each received SFM data frame matches a Media Access Control (MAC) address of the Decapsulator Responder; discard the SFM data frames having a destination address that does not match the MAC address of the Decapsulator Responder; decapsulate the SFM data frames having a destination address that matches the MAC address of the Decapsulator Responder; query a filtering database to identify an egress port for carrying the decapsulated SFM data frames to a destination specified by the decapsulated SFM data frames; if an egress port for carrying the decapsulated SFM data frames to the specified destination is identified, carry each decapsulated SFM data frame to a related Linktrace Output Multiplexer (LOM) for transmission toward the specified destination; and if an egress port for carrying the decapsulated SFM data frames to the specified destination is not identified: