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System and method for demonstrating Ethernet MAC frame structure

A demonstration method and demonstration system technology, which is applied in the demonstration system field of intervenable fields in the Ethernet MAC frame structure, and can solve the problems of inconvenient learning of the essence of the Ethernet mechanism, etc.

Inactive Publication Date: 2012-01-11
HARBIN INST OF TECH
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  • Abstract
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Problems solved by technology

[0003] Therefore, the purpose of the present invention is to provide a kind of Ethernet MAC frame structure demonstration system and method in order to solve the problem that there is no Ethernet teaching experiment system for checking MAC frames at present, and it is not convenient to study Ethernet mechanism and essence deeply. Display the actual content of the MAC frame during the Ethernet communication, so that you can have a more intuitive and accurate understanding of the Ethernet communication

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  • System and method for demonstrating Ethernet MAC frame structure
  • System and method for demonstrating Ethernet MAC frame structure
  • System and method for demonstrating Ethernet MAC frame structure

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Embodiment Construction

[0023] An Ethernet MAC frame structure demonstration system for implementing the method of the present invention is such as figure 1 As shown, the system is composed of a sending node 1 and a receiving node 2. The sending node 1 and the receiving node 2 communicate via Ethernet. For example, to facilitate the networking and demonstration of the experimental system, in this embodiment, the sending node 1 and The receiving node 2 is directly connected by a cable. The cable can use a twisted pair cable. Other types of cables can also be used as long as they can meet the corresponding data transmission requirements, such as coaxial cables and optical fibers, but are not limited to the above types. Of course, the system of the present invention can also enable the sending node 1 and the receiving node 2 to communicate through a switch.

[0024] image 3 It is a schematic diagram of the structure of the sending node 1 in the Ethernet MAC frame structure demonstration system and method o...

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Abstract

A Ethernet MAC frame structure demonstrating system includes a transmitting node and a receiving node, wherein communication is performed through the Ethernet between the transmitting node and the receiving node, which respectively comprise a microprocessor, a communication unit, an Ethernet interface unit, a keyboard and a liquid crystal display unit. The receiving node also includes a detectingunit. An MAC frame demonstrating method used in the system comprises the step of: starting the detecting system and initializing; arranging the communication parameter of the transmitting node and the receiving node; constructing the preparation frame by the transmitting node; starting transmitting the preparation frame by the transmitting node; receiving and displaying the preparation frame by the receiving node; transmitting the MAC frame by the transmitting node; detecting and displaying the received MAC frame by the receiving node. According to the method and the system of the invention, direct arrangement and observation are performed on the intervened field of the user in the transmitted MAC frame structure, causing the user to have visual and deeper understanding on the transmitting mechanism and the data form of Ethernet for the user.

Description

Technical field [0001] The present invention relates to Ethernet communication, and more specifically, to a demonstration system and method for intervening fields in an Ethernet MAC frame structure. Background technique [0002] Ethernet (Ethernet) has become the most important LAN network construction technology today due to its high flexibility, relative simplicity, and easy implementation. At present, more than 90% of global enterprise users use Ethernet for access. Not only that, with the continuous development of network control, traditional various distributed control systems based on RS485, CAN and other buses, due to their inherent defects, are being replaced by industrial Ethernet based on the TCP / IP protocol family. The original Ethernet was a bus-type network using Carrier Sense Multiple Access (CSMA / CD) technology with collision detection. According to the IEEE802.3 standard, the MAC layer of Ethernet mainly performed two tasks: (1), data processing Framing and defra...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/00H04L1/18H04L1/16H04L12/28
Inventor 佟为明林景波高蕾李凤阁刘勇赵晶
Owner HARBIN INST OF TECH
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