Method for realizing LCAS protocol nondestructive switching
A protocol and page switching technology, which is applied in the field of network communication and can solve problems such as data lossless switching failures
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[0025] Such as figure 1 As shown in the figure, it is a schematic diagram of the switching workflow of the active and standby pages in the method for realizing the lossless switching of the LCAS protocol of the present invention. Specifically include the following aspects:
[0026] 1. The main and standby table items are realized by a dual-port ram. One port is read-only for reading table entries, and the other port is write-only for table entry configuration. The main and standby pages are distinguished by the highest address bit.
[0027] 2. The configuration of the table entry (that is, the writing of ram) controls the highest address bit through the control module of the control device, and completes the configuration of the standby table entry at this time. Different from most of the previous designs, the configuration of the standby entries here can completely ignore the cooperation with the real-time data frame and the timing of the configuration, and the control modul...
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