Message transmitting method and message transmitting equipment

Abstract

The invention discloses a massage forwarding method and message forwarding equipment. The method comprises the following steps: a central processing unit (CPU) receiving messages forwarded by an application specific integrated circuit (ASIC) and forwarding the messages according to a route and an address resolution protocol (ARP) table entry corresponding to the messages; the CPU counting flow of a network segment corresponding to the messages in first preset time and judging whether the flow exceeds a first flow threshold; the CPU brushing the route and the ARP table entry of the network segment to a hardware forwarding table entry if the CPU judges that the flow exceeds the first flow threshold so as to enable the ASIC to forward the messages corresponding to the hardware forwarding table entry; and the CPU refusing to brush the route and the ARP table entry of the network segment to the hardware forwarding table entry if the CPU judges that the flow does not exceed the first flow threshold. The massage forwarding method and the message forwarding equipment improve the resource utilization rate of the hardware forwarding table entry, and improve message forwarding efficiency.

Description

technical field [0001] The present invention relates to the communication field, in particular to a message forwarding method and device. Background technique [0002] With more and more network access users and more and more diversified service requirements, various network devices need to provide sufficient throughput, high forwarding efficiency and low delay. [0003] There are two main ways for network devices to forward packets: one is to forward packets through CPU (Central Processing Unit, central processing unit); the other is to forward packets through ASIC (Application Specific Integrated Circuit, application specific integrated circuit). in: [0004] Packet forwarding through the CPU can guarantee the business expansion requirements, but cannot guarantee the forwarding efficiency requirements, and the forwarding efficiency is low. Its main implementation is to find a matching route in the fast routing table according to the destination address of the message aft...

AI Technical Summary

Problems solved by technology

[0007] Due to the limited resources of ASIC hardware entries, when the CPU has a large number of routes and ARP entries, the routes learned first will be downloaded to the hardware entries first, and the routes learned later cannot be downloaded to the hardware entries. If the traffic is concentrated on the entries learned later, the traffic is mainly forwarded by the CPU, resulting in low resource utilization of hardware forwarding entries, affecting the forwarding efficiency of the entire device, and even causing packet loss due to excessive CPU pressure.

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