Cluster routers, methods for determining MPUs and their faults, and perception controllers

Abstract

The invention discloses a cluster router, an MPU and a method for determining its failure, and a perception controller, which are used to solve the problem in the prior art that once a failure occurs at one end of the active and standby MPUs, it is impossible to immediately determine the failure of the opposite end MPU, and the smooth problem with deployment. The MPU includes a processor, and at least one perception controller respectively connected to the processor. Each sensory controller interrupts sending the first test message to other MPUs connected to the sensory controller when the working state of the local MPU is abnormal, so that other MPUs confirm when they do not receive the first test message within the first specified time period The working state of the local MPU is abnormal; or when receiving the second test message sent by other MPUs to notify the local MPU that other MPUs are working normally, the second test message is looped back to other MPUs, so that other MPUs When the loopback second test packet is received, it is confirmed that the working state of the local MPU is abnormal.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a cluster router, an MPU in the cluster router and a method for determining its failure, and a perception controller. Background technique [0002] Currently, most of the existing cluster routers have a cluster router structure in which multiple chassis are interconnected. Each chassis of the cluster router is managed by a main processing unit (MPU for short). To ensure system reliability, the system is managed in the form of active and standby MPU backup. [0003] In the existing cluster routers, the active and standby MPUs are distributed in different chassis, and the active and standby MPUs are connected through Ethernet cables or optical fibers cascaded between the chassis, such as figure 1 As shown, where, LAN switch means a local area switch. The active and standby roles of the MPUs in each chassis are generally determined by a processor (Central Processin...

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Problems solved by technology

[0006] The present invention provides a cluster router, an MPU in the cluster router and a method for determining its failure, and a perception controller, which are used to solve the problem that once one of the active and standby MPUs fails in the prior art, it is impossible to immediately determine that the opposite MPU fails. , and the problem of smooth deployment

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