A fiber ring is a network topology that connects multiple locations in a circular configuration using fiber optic cables, creating a self-healing communications loop. This architecture provides redundant paths for data transmission, ensuring network continuity even if one section of. Fibre Channel (FC) is a high-speed data transfer protocol providing in-order, lossless delivery of raw block data. Fibre Channel is primarily used to connect computer data storage to servers in storage area networks (SAN) in commercial data centers. It supports data backup and replication. Fibre Channel is needed, as it is very flexible and enables the. “The Fibre Channel Industry Association (FCIA) is a mutual benefit, non-profit, international organization of manufacturers, system integrators, developers, vendors, industry professionals, and end users. FC-2MThe invention discloses a kind of dual loop redundancy self-healing fiber optic network construction method based on Fibre Channel technologies, take dual loop redundancy self-healing topological structure, compared with the prior art, the dual loop redundancy self-healing topological structure of. MTP® Loopback modules are used widely within testing environment especially within parallel optics 200/400G networks. It can be used with MTP cables to detect the quality of each channel and self-loop test of a single MTP interface transceiver.