Method of data on line exchange between main control plate and business plate in main control plate thermal redundancy

A data exchange and hot backup technology, applied in the field of data communication, can solve the problems of routing oscillation, affecting services, packet loss, etc., and achieve the effect of ensuring consistency

Inactive Publication Date: 2004-03-03
HUAWEI TECH CO LTD
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  • Claims
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Problems solved by technology

Restarting the service board will inevitably affect the business, causing data packets

Method used

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  • Method of data on line exchange between main control plate and business plate in main control plate thermal redundancy
  • Method of data on line exchange between main control plate and business plate in main control plate thermal redundancy

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Embodiment Construction

[0013] The data exchange between the main board and the service board occurs after the original main board fails, and the standby board becomes the new main board to direct the entire system. However, due to various reasons, the new main board maintains related business The data and state of the board may be inconsistent with the data and state maintained by the business board itself. Therefore, the hot backup module defines the process of data exchange, actively communicates with the service board, and confirms and exchanges in three aspects: hardware status, link layer status, and configuration data.

[0014] In the method of the present invention, firstly, a hot backup module is respectively set on the main board and the backup board, and a hot backup registration table is established respectively, and the hot backup interface addresses of each data module on the main board and the backup board are registered in the registration table. When data modules are registered in th...

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Abstract

The method sets up warm back-up module, registration table, and interface address of warm back-up on main board and standby board, which are utilized as main control board. The communication module and interface between boards are set up on the main board and service boards. After main board and standby board are exchanged, new main board searches warm back-up registration table. Based on interface address of warm back-up, new main board informs to carry out data exchange with service boards. With information of staring data exchange being received, data on new main board are transferred to service boards. The data on service boards are transferred to the new main board through the interface between boards. In the invention, validation and exchange of states and data between main board and service boards can be carrying out online without affecting on normal operation of service boards so as to maintain consistency of data and state for whole system.

Description

technical field [0001] The invention relates to a method for online data exchange between a main control board and a service board in hot backup of the main control board, belonging to the technical field of data communication. Background technique [0002] In the field of data communication, high-end distributed network equipment (such as high-end routers) is in a very important position, and failures are not allowed. In order to ensure the reliability of devices and networks, backup mechanisms are generally required. The main control board and service board are designed for distributed products. The main control board controls the operation of the entire network equipment, and the service board is responsible for data forwarding. In order to improve the reliability of network equipment, two main control boards are designed for the hot backup mechanism, one is in working state and the other is in standby state. Once the working main control board (hereinafter referred to ...

Claims

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Application Information

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IPC IPC(8): H04B1/74H04L12/00
Inventor 熊怡吴小前任旻
Owner HUAWEI TECH CO LTD
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