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Fault-tolerant network switch

A network switch and network switching technology, applied in the field of network switching equipment, can solve problems such as increased cost, high cost, increased cost and operational complexity

Active Publication Date: 2011-03-09
TRANSCEND COMM BEIJING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Of course, this method also has a significant disadvantage, that is, the equipment increases the cost of redundant components, but does not improve performance. The cost of the circuitry to switch between power sources, and the need for the switch to replace a failed component while maintaining uninterrupted operation adds cost and operational complexity
This type of redundancy is too expensive to recommend except where reliability is at a premium

Method used

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Embodiment Construction

[0025] The present invention will be described below in conjunction with the accompanying drawings.

[0026] exist figure 1 In, a fault-tolerant switching system includes two network switching units SU1 and SU2 and an interconnecting unit interconnecting them with each other. The network switch unit SU1 includes a switch controller 50. The switch controller 50 includes necessary software and hardware for detecting the network packets sent. The switch controller judges the source port of the network packets by decoding the address information in the network packets. The network switching unit SU1 also includes a failure monitor 70, which is connected to the switching controller 50. When the power supply, fan and other key components fail, the network switching unit SU1 will fail, and when it finds that any failure of the network switching unit SU1 When a component fails, it will generate a fault alarm signal and send this signal to another network switching unit SU2, or feed i...

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Abstract

The invention discloses a fault-tolerant network switch, which comprises more than two network switch units and a high-reliability (without single-point failure) interconnection unit. In a normal working state, two network switch units process network data packets; if one network switch unit fails, the other one undertakes all works to guarantee continuous work at the cost of possibly reducing some performances. The failed network switch unit can be replaced and then the network can be recovered to the state before the failure; moreover, the replacement of the failed network switch unit does not influence the other working network switch unit or network connection.

Description

technical field [0001] The invention relates to a class of network switching equipment, in particular to a fault-tolerant network switch using Ethernet, optical fiber, asynchronous transmission mode and other network technologies. Background technique [0002] As we all know, network switches can provide independent channels for network terminals such as computers, printers, servers, etc. to communicate with each other and improve the communication capabilities of the network. This method is better than all devices in the network receiving all data packets for communication. [0003] Network switches use switching technology to enable devices on the network to communicate with each other through independent channels. Compared with network devices that use non-switching technology and work on the OSI physical layer, such as hubs, switching technology can provide higher bandwidth for network communication. [0004] Network switches generally provide a fixed number of ports (4 ...

Claims

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Application Information

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IPC IPC(8): H04L12/56H04L12/24H04L1/22H04L12/04H04L12/939
Inventor 杨国文何锋向剑喜
Owner TRANSCEND COMM BEIJING
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