Input buffer structure and data forwarding method of Ethernet switch

A technology of input buffering and switching, applied in data transformation, data exchange network, electrical digital data processing, etc., can solve problems such as complex implementation, and achieve the effects of improving efficiency, reducing search time, and shortening forwarding time

Active Publication Date: 2018-07-20
LUOYANG INST OF ELECTRO OPTICAL EQUIP OF AVIC
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this method can reduce the forwarding delay of data packets to a certain extent, the implementation of this method is complicated, and the time routing forwarding table needs to be obtained

Method used

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  • Input buffer structure and data forwarding method of Ethernet switch

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Embodiment Construction

[0022] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0023] Embodiment of an Ethernet switch input buffer structure of the present invention

[0024] Aiming at the requirements of the current time-triggered Ethernet TTE switch for switching delay, the present invention provides an input buffer structure of the Ethernet switch, including storage areas divided according to different data frame types, and the storage area of ​​each data frame type includes addresses The storage module, the data storage module and the verification storage module are respectively used for the destination address, data content and verification value of the data frame to be forwarded. Store the destination address of the data frame in the corresponding address storage module, and perform forwarding port query according to the destination address in the address storage module, and store the data in the data frame cach...

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Abstract

The invention relates to an input buffer structure and a data forwarding method of an Ethernet switch, and belongs to the technical field of computer network communication. The cache structure of theinvention includes different storage areas divided according to data frame types, and the storage areas of each data frame type include an address storage module, a data storage module and a verification storage module, wherein the data storage module is used to store the data content of the data frame when a forwarding port is queried according to the destination address in the address storage module. When searching for the relevant forwarding port corresponding to the destination address, the invention caches the data of the corresponding frame into the corresponding data storage module, andfully utilizes the data storage time of the data frame to make the data in the received data frame be processed in parallel with the forwarding port searching the destination address, thereby reducing the search time, shorting the forwarding time of the data frame in the switch, improving the efficiency, and meeting the requirement for the switching delay of time-triggered Ethernet switch.

Description

technical field [0001] The invention relates to an input buffer structure and a data forwarding method of an Ethernet switch, belonging to the technical field of computer network communication. Background technique [0002] Time-triggered Ethernet is the latest new Ethernet-based bus technology in the world, and it has the highest level of security, reliability and deterministic network. This bus technology is compatible with the advantages of time-triggered protocol and Ethernet technology, and can be compatible with ordinary network data flow, AFDX (aviation electronics full-duplex switched Ethernet) data flow and time-triggered Ethernet network data flow on the same network platform , with higher security and a strong fault-tolerant mechanism. [0003] Time-triggered Ethernet TTE switches are compatible with ordinary Ethernet switches, and can also exchange and forward PCF frames, TT frames, and RC frames. Since PCF frames, TT frames, and RC frames are sensitive to time...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/931H04L12/861H04L1/00G06F5/06
CPCG06F5/065H04L1/0061H04L49/351H04L49/90H04L49/9063
Inventor 陈水忠卢建政
Owner LUOYANG INST OF ELECTRO OPTICAL EQUIP OF AVIC
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