Multi-chassis 1+1 MSP protection for TDM over packet services
Publication Date: 2018-Oct-11
The IP.com Prior Art Database
The present disclosure relates to multi-chassis 1+1 Multiplex Section Protection (MSP) protection for Time Division Multiplexing (TDM) over packet services. The present disclosure provides resilient multi-chassis 1+1 MSP protection for TDM over Packet (TDMoP) services over packet devices to protect against chassis faults. Multi-chassis devices form a Redundant Group (RG) and use an Automatic Protection Switching (APS) chassis link (ACL) to facilitate the exchange of K1/K2 status messages required to keep APS state machines synchronized between packet devices and to block/unblock the TDM traffic in packet network accordingly.