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PCIE switching system, apparatus and switching method

A technology of switching system and cell switching, which is applied in the field of PCIE switching system, can solve problems such as poor system reliability, inability to perform data exchange, and limited total bandwidth of switches, etc., to achieve the goal of ensuring reliability, increasing bandwidth, and ensuring switching speed Effect

Active Publication Date: 2013-01-09
HUAWEI TECH CO LTD
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Problems solved by technology

In the tree structure, there is only one path between any RC and EP. When the path fails, the RC and EP at both ends of the path cannot exchange data, resulting in poor system reliability.
[0003] In addition, if there are many EPs connected to the PCI Express switch, the bandwidth that each EP can occupy is limited by the total bandwidth of the switch.

Method used

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  • PCIE switching system, apparatus and switching method
  • PCIE switching system, apparatus and switching method
  • PCIE switching system, apparatus and switching method

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Embodiment Construction

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0026] see image 3 , is a schematic structural diagram of a PCIE switching system in an embodiment of the present invention. Such as image 3 As shown, the switching system includes a plurality of PECBs (PCI Express to Cell Bridge, PCIE is switched to the conversion bridge of cell switching), a plurality of cell switching modules; each PECB in the multiple PECBs is connected to the multiple Each of the cell switching modules is communicatively connected.

[002...

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Abstract

The present invention discloses a PCIE switching system, an apparatus and an switching method, wherein the system comprises: a plurality of the PCIE is switched to cell switching converter bridges PECB and a plurality of cell switching modules; in each PECB of the plurality of PECB is in communication connection with each cell switching module of the plurality of cell switching modules; the first PECB of the plurality PECB is used for receiving transaction layer pack packets, converting the transaction layer packets into cells, and sending the cells to at least one cell switching module of the plurality of cell switching modules; the at least one cell switching module of the plurality of cell switching modules is used receiving cells sent from the first PECB, and forwarding the cells to a second PECB according to the ID number, which is contained in the cell, of the second PECB in the plurality of PECB. According to the invention, it is possible to improve the reliability of the PCIE switching system, and solve the problem of bandwidth bottleneck between switches.

Description

technical field [0001] The present invention relates to the communication field, in particular to a PCIE switching system, device and switching method. Background technique [0002] PCI Express (Peripheral Component Interconnect Express, external component fast interconnection bus, hereinafter referred to as PCIE) protocol, its transport layer is based on TLP (Transaction Layer Packet, transaction layer package) message for data exchange, using point-to-point communication mode, from RC ( Root Complex (root node) to EP (End Point, leaf node) is a tree network structure, RC can be directly connected to EP or connected to EP by connecting one or more switches (Switch), please refer to figure 1 . In the tree structure, there is only one path between any RC and EP. When the path fails, the RC and EP at both ends of the path cannot exchange data, resulting in poor system reliability. [0003] In addition, if there are many EPs connected to the PCI Express switch, the bandwidth ...

Claims

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Application Information

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IPC IPC(8): H04L12/56
CPCH04L12/00G06F13/4022G06F2213/0026
Inventor 苏德现
Owner HUAWEI TECH CO LTD
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