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Load-sharing switching system and port-level protective switching method

A technology of load sharing and protection switching, applied in the field of switching, can solve problems such as high cost and heavy workload, and achieve the effect of meeting switching requirements, ensuring stability and reliability, and fast protection switching

Inactive Publication Date: 2008-07-02
HONGBO CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] (1) All work is concentrated on one switching plane, and its workload is too heavy;
[0010] (2) The failure of a switching port will cause the switching of all switching planes in the entire system, and the cost is too high

Method used

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  • Load-sharing switching system and port-level protective switching method
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  • Load-sharing switching system and port-level protective switching method

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Embodiment Construction

[0049] The implementation of the system and method of the present invention will be described in detail below with reference to the accompanying drawings.

[0050] Such as figure 1 As shown, as an embodiment, taking three switching terminals as an example, the system includes two switching planes X and Y, switching terminals A, B, and C, and there are filters on the switching terminals. All switching terminals and switching planes are connected through the bus on the backplane, and the switching plane and switching terminals are also connected through high-speed link lines and signal lines.

[0051] As another implementation manner of the present invention, the filter of each terminal includes a first filter FilterX and a second filter FliterY, corresponding to switching plane X and switching plane Y, respectively.

[0052] Assuming that there are N terminals, each of the two filters on each terminal has N bits, and each bit corresponds to a terminal, which represents a switc...

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PUM

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Abstract

The invention discloses an exchange system based on a sharing memory and a load-sharing mode and a protection switching method with an interface grade. The system in the invention comprises two exchange planes and a plurality of exchange terminals which are connected with a signal wire through a backboard bus and a high-speed chain. Each exchange terminal is provided with a filter. The settings of the filters in the plurality of exchange terminals lead any exchange terminal to only receive messages from a fixed exchange plane. The method in the invention discloses a protection switching method with the interface grade in the system. By adopting the system and the method in the invention, a great progress in the respects of assuring the stability and reliability of the communication system is achieved. The switching time of the protection switching with an interface grade is shortened to the greatest extent; the lost message is reduced to the minimum and more stable a faster speed meets the switching requirement for the communication grate device.

Description

technical field [0001] The invention relates to a switching technology, in particular to a port-level protection switching system and a port-level protection switching in a switching system based on shared memory and load sharing mode. Background technique [0002] With the rapid development of the Internet and the continuous emergence of broadband technology, the performance requirements for Internet interconnection devices—routers are getting higher and higher. Generally, the routers that form the backbone network need to have a forwarding capability of more than Gigabit. There are four forms, namely bus exchange, ring exchange, Crossbar exchange and shared memory exchange structure. [0003] Bus switching is the oldest data exchange method. It does not have a dedicated switching network chip. It transmits data between line cards through the shared backplane bus, and each line card occupies the backplane bus in a time-sharing manner. Although the structure and technology ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/56H04L1/22H04L1/00H04L12/933H04L12/939
Inventor 赵昊翔张进涛秦春华赵王胜林盛荣李灿伟
Owner HONGBO CO LTD
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