Method and device for selecting main switching board of switch

Abstract

The invention provides a method for selecting a main switching board. The method comprises the following steps of acquiring a first main and standby state value of a first switching board and a secondmain and standby state value of a second switching board, wherein the value ranges of the first main and standby state value and the second main and standby state value are both binary numbers 1 and0, and one of the binary numbers 1 and 0 corresponds to a state of the main switching board while the other one of the binary numbers 1 and 0 corresponds to a state of a standby switching board; carrying out AND operation on a value obtained after negation of the first main and standby state value and the second main and standby state value in order to obtain a third main and standby state value;when the third main and standby state value is determined to correspond to the state of the standby switching board, enabling the main switch board to be the first switching board; and when the thirdmain and standby state value is determined to correspond to the state of the main switching board, enabling the main switch board to be the second switching board. In the method, only two binary numbers need to be subjected to negation and AND operation, the consumed time is short, the efficiency is high, and the out-of-work time of the switch can be effectively shortened.

Description

technical field [0001] The invention relates to the technical field of network communication, in particular to a method and a device for selecting a main switching board of a switch. Background technique [0002] The switch is the core device in network communication. Once a failure occurs, the entire network will be paralyzed, so the switch needs to be highly reliable; in practice, electronic hardware may fail. In order to improve the reliability of the switch, some cores in the switch Electronic hardware is usually configured with double copies, one of which keeps working. Once this fails, the other as a backup will start immediately to replace the failed one and continue to work, so that the switch has the ability to continue to work; It is understood that during the switching process, the switch will stop working, so the time it takes to switch is as short as possible. [0003] In a switch with backup function, there are usually two switch boards and several interface b...

AI Technical Summary

Problems solved by technology

It can be seen that in the prior art solution, the participation of PLD device and CPU is required, the system is complicated, and the cost of the whole system is relatively high; and the processing speed is slow, and the time spent is relatively long

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