Method for ensuring normal operation of access controller (AC) under high load

A technology that connects to the controller and works normally. It is applied in the field of wireless communication and can solve problems such as difficult stable operation, high pressure on control process and data forwarding.

Inactive Publication Date: 2013-01-16
NANJING Z COM WIRELESS
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that the control process and data forwarding pressure existing when the access controller aggregates data from different APs and accesses the Internet, it is difficult to ensure the stable operation of a certain process, and proposes a guarantee How access controllers work properly under high load

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  • Method for ensuring normal operation of access controller (AC) under high load

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Embodiment Construction

[0031] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0032] Such as figure 1 As shown, a method for ensuring the normal operation of the access controller under high load is characterized in that it includes the following steps: when the access controller AC is working, the CPU of the access controller is monitored, corresponding to the CPU Multiple cores create monitoring threads. When the CPU utilization rate of any core of the CPU is continuously high, corresponding measures are taken to ensure the normal operation of the system; when the detection result is that a certain process occupies too much CPU resources, the process is restarted. The way to alleviate it; when the detection soft interrupt occupies too much CPU resources, that is, when the data pressure is too high, packet loss processing is performed.

[0033] In the present invention, when the CPU utilization continues to be too high, corresp...

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Abstract

The invention discloses a method for ensuring the normal operation of an access controller (AC) under a high load. The method comprises the following steps of: when the AC operates, monitoring a central processing unit (CPU) of the AC; creating monitoring threads in correspondence to a plurality of kernels of the CPU, and when the CPU utilization rate of any kernel of the CPU keeps over-high, taking corresponding measures to ensure the normal operation of a system; when a detection result is that a certain process occupies large CPU resources, relieving in a process restarting mode; and when software interrupt occupies large CPU resources and the pressure of data is over-high, performing packet loss processing. The method has the advantages that by statistic analysis of the utilization situation of CPU resources, the system is prevented from operating in a high-load state for a long time, so the system can stably operate for a long time, the stability of the system is improved, and resources of the system are saved.

Description

technical field [0001] The invention relates to the field of wireless communication, in particular to a method for ensuring long-term stable operation of a system, specifically a method for ensuring normal operation of an access controller under high load. [0002] Background technique [0003] Currently, the wireless communication field usually has a specific access controller (AC). The access controller (AC) aggregates data from different APs and accesses the Internet, and at the same time completes configuration management of AP equipment, authentication, management of wireless users, and control functions such as bandwidth, access, switching, and security. Under the pressure of so many control processes and data forwarding, it is difficult to ensure the stable operation of a certain process, especially when the process state machine fails and the process falls into an endless loop, wasting CPU resources; During the attack, the excessive data pressure will cause the sys...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F11/34H04W24/04H04W88/12
Inventor 马祥银高浩
Owner NANJING Z COM WIRELESS
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