Method for realizing port fast reroute and device
A port and fast technology, applied in the direction of digital transmission system, electrical components, transmission system, etc., can solve the problems of cumbersome process, limited scan detection cycle, too much switching time, etc., and achieve the effect of improving reliability and obvious effect
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[0054]The core idea of the present invention is: when the failure of the main path is detected, there is no need to judge the specific type of FRR, because it can be attributed to "interface failure" in the end, and "interface failure" is directly reflected on the initial port of the main path , so "interface failure" means that the initial port of the active path is invalid. Therefore, set an initial port switching flag in the port table of the FRR entry, and switch the initial port when the active path is detected to be invalid. The value of the flag bit is set to a value indicating failure of the active path, indicating that a switchover to the standby path is required, which indicates that the switching of the initial port means that the switchover of the active and standby paths has been realized, and there is no need to distinguish the type of FRR.
[0055] Before explaining the technical solution of the present invention, first explain the difference between "path" and...
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