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Interface board based on rapid periphery components interconnection and method for switching main-control board

A technology for the interconnection of peripheral components and the main control board, which is applied in the field of network and communication, can solve problems affecting work stability and reliability, and achieve the effects of stable work, shortened time, and increased reliability

Active Publication Date: 2010-04-14
XINHUASAN INFORMATION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] What the present invention aims to solve is the problem of affecting the working stability and reliability when the interface board switches the main control board in the prior art

Method used

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  • Interface board based on rapid periphery components interconnection and method for switching main-control board
  • Interface board based on rapid periphery components interconnection and method for switching main-control board
  • Interface board based on rapid periphery components interconnection and method for switching main-control board

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Embodiment Construction

[0031] In the prior art, when the CPU system on the main control board initializes the Endpoint on the interface board, a section of address space is allocated to the Endpoint in the CPU system of the main control board, and each control register and buffer inside the Endpoint Establish a mapping relationship with the address space allocated by the CPU system of the main control board. When the CPU writes to an address, the result of the write operation will also be reflected in the Endpoint internal register that has a mapping relationship with the address; the same is true for the Endpoint's write operation to its internal register, which will also be reflected in the The register has a mapping relationship in the address space of the CPU system of the main control board. Through address mapping, the CPU system can exchange data and control information with Endpoint in its address space, and assist Endpoint in completing various business functions of the interface board.

[00...

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Abstract

The invention relates to an interface board based on PCI Express, which comprises: Endpoint and a bus connector connecting at least two main control boards and Endpoint via PCI Express bus, wherein said connector comprises an address projection module and a projection separate module, while the address projection module is used to build and maintain the address projection between Endpoint and at least two main control boards, and the address separate module is used to separate and recover the address projection between Endpoint and main control board. With said invention, when switching the main control board, the switch of PCI Express bus will not be changed, but only change direction of service data inside the board devices, to change the hard switch into soft switch, to improve the stability of main control board switch.

Description

Technical field [0001] The present invention relates to the field of network and communication, in particular to an interface board based on PCI Express (Peripheral Component Interconnect Express) bus in network equipment and a method for switching the interface board between main control boards. Background technique [0002] Intel officially announced the PCI Express bus in the spring of 2001, which is the third-generation local bus technology that replaces the PCI (Peripheral Component Interconnect) bus. A PCI Express serial bus signal consists of two pairs of differential signals receiving and sending, with a bandwidth of 2.5Gbps (Gigabits per second). Because the PCI Express serial bus has the characteristics of fewer signal lines, large bandwidth, and point-to-point transmission, it is increasingly used in networks and communication equipment. [0003] In the dual-master control network equipment based on the PCI Express bus, the main control board and the interface board, an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/10H04L12/40
Inventor 王心远
Owner XINHUASAN INFORMATION TECH CO LTD