Window sampling control method and device

Abstract

The present invention relates to a window sampling control method and a device, wherein the method comprises the following steps: confirming the DDR window sampling point of double data rate synchronous dynamic random access memory after the single board is electrified; obtaining the temperature sensitivity level of the DDR window sampling point; comparing with the temperature recorded before the single board is electrified according to the temperature sensitivity level for matching with the DDR window sampling point satisfying the temperature difference condition; and inputting the data of the DDR window sampling point satisfying the temperature difference condition into a DDR controller. Therefore the window can be adjusted dynamically when the temperature changes so that the single board is in an optimum state when the service is recovered.

Description

technical field [0001] The invention relates to the technical field of network communication, in particular to a window sampling control method and device. Background technique [0002] With the development of communication network technology, the network has higher and higher requirements for forwarding performance and quality of service (QOS, Quality of Service) of routers, and more and more large-capacity packet buffer devices are used. At present, network processor (NP, Network Processor), traffic management (TM, a set of actions and operations run by the network to ensure the operability of the network, TM is performed in the form of communication flow control) and used to process packet forwarding The memory of the Double DataRate-synchronous dynamic random access memory (DDR, Double DataRate-synchronous dynamic random access memory) is generally above 100M. With the application of NP or TM such as 80G and 100G, the capacity of external storage devices has also risen ...

AI Technical Summary

Problems solved by technology

However, when the device is started, it is found that the operation parameters of the DDR controller are most suitable for the current environmental conditions, but not necessarily suitable for the operating environment of the device after the board service is switched; the temperature is adjusted by the fan speed, and the monitoring of the whole machine is very important for the board itself. A large error is required, and it cannot truly reflect the actual temperature of the chip

[0006] Besides, for different types of DDRs, or DDRs with high temperature sensitivity, the sampling data cannot be accurately obtained during actual operation.

Under DDR abnormal errors, it is impossible to quickly correct and restore services, resulting in accidents or unnecessary repairs of boards, etc. For example, if there is a packet storage error in operation, it can only alarm to replace the board or reset the device, or perform re-initialization, etc. Strategy

[0007] During the research and practice of the existing technology, the inventor of the present invention found that in the existing implementation, when the temperature changes and the window shifts, the reliable sampling data cannot be accurately sampled

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