Load balance type exchanging equipment and device having multi-stage buffer

A load balancing and switching device technology, applied in data switching networks, store-and-forward switching systems, digital transmission systems, etc., to solve problems such as out-of-order, the need for internal accelerators, and out-of-order packets

Inactive Publication Date: 2003-12-31
ACCTON TECHNOLOGY CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the main disadvantage of the aforementioned device is that its packets may have out-of-sequence problems
[0010] From the above description, it can be seen that the switches currently used in high-speed network transmission cannot fully meet the market requirements.
In view of this, there is a need to provide an application packet switching device and its method, which can solve the problem of traditional switches requiring internal accelerators or generated out-of-sequence

Method used

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  • Load balance type exchanging equipment and device having multi-stage buffer
  • Load balance type exchanging equipment and device having multi-stage buffer
  • Load balance type exchanging equipment and device having multi-stage buffer

Examples

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Embodiment Construction

[0050] A quick way to solve the out-of-sequence problem with a load-balanced switch with a first-level buffer is to add a reordering and output buffer after the second-level switch fabric. However, the distribution of packets in the first-level crossbar switch fabric is based on the packet arrival time, so there is no guarantee that the reordering and output buffers are large enough to prevent packet loss. Therefore, the distribution of packets in the first-level crossbar fabric is based on their flow rather than arrival time. Therefore, we must add a traffic splitter and a load balancing buffer in front of the first level crossbar switch fabric.

[0051] The present invention provides a load balancing switching device with multi-level buffers. By adding a load buffer before the first-level crossbar switch fabric, and adding a reordering and output buffer after the second-level crossbar switch fabric. The distribution of packets in the first-level crossbar fabric is based on...

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PUM

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Abstract

The invention discloses a load balanced type switchboard with multi stage buffers comprising a front end structure, a central switchboard device and a rear end device. the front end device is used to disperse and store a plurality of packages inputted to the device. The central switchboard device is connected to the front end structure, for exchanging the packages into the multiple output ports of the central switchboard device. The rear device is connected to the central switchboard device for rearranging the multiple packages and waiting for output.

Description

technical field [0001] The present invention relates to a packet switching device and its method applied to a network system, and more particularly to a load balancing switching device, which has a multi-level buffer, which can solve the need for internal accelerators and out-of-sequence generated by traditional switches question. Background technique [0002] figure 1 It is a structural diagram of a known 4×4 output buffer crossbar switch, wherein one end of the crossbar switch 11 is connected to a plurality of output ports each having an output buffer 12, and the output buffer 12 is used to store the output Port packets, so that the packets will not be lost because the crossbar switch 11 is temporarily unable to output. The front end of the crossbar switch 11 is connected to a plurality of input ports. The crossbar switch 11 has a controller (not shown) at the intersection of each column and column to control the flow of data. by figure 1 For example, connection point...

Claims

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Application Information

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IPC IPC(8): H04L12/803H04L12/861H04L12/931
Inventor 张正尚李端兴连卿闵
Owner ACCTON TECHNOLOGY CORPORATION
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