A METHOD FOR CONTROLLING THE MESSAGE CHANNELS OF THE MAIN-SECONDARY MULTI-PROCESSOR SYSTEM

摘要

A controlling of message channels in router is related. Aiming at the disadvantages that the resources of the processor are exhausted and the low priority queues are starved in present main-secondary multi-processor system, a method for controlling the message channels between the main processors and secondary processors of the main-secondary multi-processor system is provided. The scheme of this invention is a method for controlling the message channels of the main-secondary multi-processor system, the characters are: switching the system states based on the channel queue spare ratio q; adjusting the system strategy under the different system states, and initiatively discarding the message before the channel congested. The beneficial effect of the method by this invention is that the congestion is avoided in mechanism. The low speed interface can not link-break or interface-passless caused by discarding the keepalive packet when the high speed interface heavy-pours packets. The messages which need to assure the priority can be ensured when a mass of messages are coming. The phenomenon that other general messages are submerged is greatly mitigated when the attack messages come suddenly.