Method for detecting redundancy degradation fault of dual-redundancy optical fiber channel network
A fiber channel and detection method technology, applied in the field of testability, can solve the problems of testability design defects, affecting the testability and security of the airborne FC network, and achieve the effect of improving testability and security
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[0035] In order to further clarify the embodiments of the present invention, combined with figure 2 The specific embodiment is further described, and the specific method is as follows:
[0036] The invention is suitable for dual redundancy FC nodes with two independent MACs, each MAC corresponds to an FC channel, and is completed by the redundancy fault detection unit, redundancy transmission control unit, MAC error detection unit and other units inside the FC node, and the detection The mechanism is as follows:
[0037] 1) The redundancy fault detection unit reads the PSM (Port State Machine, port state machine) in the two MACs and compares them. For example, the PSM in one MAC is in the non-AC state, while the PSM in the other MAC is in the AC state. state, the redundancy fault detection unit determines that the FC channel link state error corresponding to the MAC in the non-AC state causes a redundancy degradation fault in the FC network;
[0038] 2) The two MACs start t...
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