Data synchronization method in distributed equipment according to address resolution protocol

Abstract

The apparatus thereof comprises a main control module and a distributing module. The method thereof includes: a) said distributing module reports a message not capable of routing by itself to said main control module; b) in term of said message, the main control module looks up ARP table; if a corresponding list item is found, and then synchronizing ARP data with said distributing module. The invention can make ARP data in distributing equipment keep global consistency. Besides, the invention determines the consistency of ARP data based on the message forwarding state so as to avoid loss of synchronization data or synchronization failure caused by adding ARP list item using software.

Description

technical field [0001] The invention relates to the technical field of data synchronization, in particular to a method for data synchronization of Address Resolution Protocol (ARP) in distributed equipment. Background technique [0002] At present, with the rapid development of network technology, users have higher and higher requirements on performance such as network bandwidth. In order to meet the performance requirements of network access devices, in addition to improving the hardware performance of the devices, the processing flow of the devices can also be improved. Therefore, distributed processing technology has become a hot technology to meet performance requirements. [0003] In order to implement data forwarding on distributed devices, corresponding routing information needs to exist on distributed devices. As direct host routing, ARP is an indispensable protocol for data forwarding. [0004] refer to figure 1 , distributed equipment generally consists of a mai...

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Problems solved by technology

[0009] Although the regular synchronization technology overcomes the shortcomings of the heartbeat detection technology, it is a waste of resources for the main control module to periodically synchronize its own ARP data to the distributed module, and because of the regular synchronization, it is not possible to ensure real-time synchronization between the main control module and the distributed module. The ARP data on

Regardless of the heartbeat detection technology or the periodic synchronization technology, it cannot guarantee that the ARP data of the distributed device is consistent when forwarding the message, which will cause the problem that the distributed device cannot forward the message

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