Synchronization method for filtering database table forms, device and network equipment

Abstract

The invention provides a synchronization method for filtering database table forms, a device and a piece of network equipment. The method comprises the following steps: a CPU generates a synchronization request message, and transmits the synchronization request message to an ASIC (Application Specific Integrated Circuit) through an Ethernet port between the CUP and the ASIC, wherein the synchronization request message comprises type identifications which are used for identifying the synchronization request message as a request FDB (Filter Data Base) form synchronization; the ASIC receives the synchronization request message through the Ethernet port, then generates a synchronization response message according to the synchronization request message, and transmits to the CPU through the Ethernet port; the CPU receives the synchronization response message through the Ethernet port, and synchronizes the FDB of an operation system according to the synchronization response message. The technical scheme of the invention can synchronize the FDB of the ASIC and the operation system in time, and can reduce the influence on the real time of the operation system.

Description

technical field [0001] The invention relates to network communication technology, in particular to a method, device and network equipment for synchronizing filtering database entries. Background technique [0002] Network devices (for example, switches and routers) in the Ethernet are generally composed of components such as a central processing unit (Central Processing Unit; CPU for short) and an Ethernet application specific integrated circuit (ASIC for short). The main function of the CPU is to perform arithmetic and logic operations, so it can run the operating system of the network device on it, manage and control the network device and provide the user with a management control interface. The main function of the ASIC is to provide users with an Ethernet port, receive packets from the Ethernet port and process the packets according to the Ethernet protocol, and then transmit the packets from the Ethernet port after processing. Before the ASIC processes the packets, th...

AI Technical Summary

Problems solved by technology

[0005] If the CPU periodically consumes about 0.9 seconds to read FDB, the real-time performance of the operating system running on the CPU will drop sharply, which will have a serious impact on the business

In practical applications, methods such as enlarging the cycle length of reading FDB and only reading part of the FDB entries each time may be adopted to reduce the impact on the real-time performance of the operating system, but these solutions will cause a gap between the FDB of the ASIC and the operating system. The synchronization is not timely, and the user cannot keep abreast of the status of the FDB

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