Data synchronization method and device among forwarding boards

Abstract

The invention relates to the communication field and discloses a data synchronization method and a device for forwarding boards, and is used for improving the execution efficiency of a data synchronization flow and lowering the communication overhead among the boards. The method comprises the following steps: a main forwarding board stores relevant information of business data in the form of a business data linked list, then sequentially reads the information saved in the business data linked list by linked list nodes so as to obtain the corresponding business data when designated time is reached, and finally sends the business data to a standby forwarding board for data synchronization. In the invention, the business data linked list has high access efficiency, thus ensuring real-time business data synchronization between the main forwarding board and the standby forwarding board, and further ensuring smooth business transition and improving the business reliability of communication equipment in the case of switchover between the main forwarding board and the standby forwarding board.

Description

technical field [0001] The invention relates to the communication field, in particular to a method and device for synchronizing data between forwarding boards. Background technique [0002] In large-scale communication equipment, for reliability considerations, the important forwarding board is usually set as the main forwarding board [0003] The so-called forwarding board is the hardware where the module with transceiver function is located. Communication devices usually run services based on various communication protocols, and dynamic data will be generated when the services are in progress, for example, a dynamic multicast member table will be generated when multicast services are running, and MPLS (Multiple Protocol Label Switching, Multi-Protocol Label Switching, ) of VPLS (Virtual Private Lan Service, Virtual Private Local Area Service) produces Mac learning tables and the like. In order to ensure that the business process is not interrupted as much as possible or ...

AI Technical Summary

Problems solved by technology

[0004] Under the existing technology, the data used in the forwarding board is usually stored in the form of a database table. The data stored in the database table is very time-consuming to access, and every time a synchronization operation is performed, only all data can be synchronized. This further reduces the execution efficiency of the data synchronization process, especially when the communication bandwidth between forwarding boards is small or / and the amount of data to be synchronized is too large, this defect is more obvious, and in severe cases, it will also affect the forwarding board switching process implementation, thereby reducing the service reliability of communication equipment

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