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A Method of Ethernet Point-to-Point Reliable Transmission

An Ethernet and network point technology, applied in the field of Ethernet communication and bus transmission, can solve the problem of lack of simple and efficient methods for reliable transmission, and achieve the effect of simple and reliable transmission realized by hardware

Active Publication Date: 2018-08-24
NO 8357 RES INST OF THE THIRD ACADEMY OF CHINA AEROSPACE SCI & IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is a lack of simple and efficient methods for point-to-point reliable transmission using Ethernet media

Method used

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  • A Method of Ethernet Point-to-Point Reliable Transmission
  • A Method of Ethernet Point-to-Point Reliable Transmission
  • A Method of Ethernet Point-to-Point Reliable Transmission

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] In this embodiment, the Ethernet medium is used for reliable data transmission, and the upper layer data is directly carried by the Ethernet frame. An 8-bit link ID is defined in the payload of the Ethernet frame to distinguish up to 256 different links in the endpoint. The 8-bit type field MSB is 0 to indicate an information frame, the MSB is 1 to indicate a message frame, and the remaining 7 bits are reserved, and the 8-bit sequence number field is the sequence number 0 to 255 and cycle count of the same link ID information frame, and the 8-bit The header check field is the BIP8 check calculation result of the 8-bit link ID, 8-bit type field, and 8-bit sequence number field.

[0050] The hardware that the method for Ethernet point-to-point reliable transmission provided by the present invention is based on is divided into sending and receiving two parts, such as figure 1 As shown, the sending part includes information sending buffer, sending sequence number accumulato...

Embodiment 2

[0069] The Ethernet point-to-point reliable transmission method provided in this embodiment uses the Ethernet medium for reliable data transmission, directly uses the Ethernet frame to carry the upper layer data, and defines the link ID, type, sequence number and link ID in the payload of the Ethernet frame. The header check field extends the Ethernet frame information. The link ID field is used to distinguish different links within the endpoint. The type field is used to distinguish information frames from message frames. The serial number field is the sequence number of the information frame with the same link ID. To detect link faults such as frame loss, repetition, and out-of-sequence, the header check field is used for calculation and verification of the above fields. When an endpoint receives an information frame, it must return a message frame to the peer to respond to the status of the information frame received; it does not need to respond when it receives a message fr...

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Abstract

The invention belongs to the field of Ethernet communication and bus transmission with high requirement for reliability, and specifically relates to a method for reliable point-to-point transmission via the Ethernet. The link ID, type field, serial number field and header check field are defined in the net load of an Ethernet frame, and the information of the Ethernet frame is expanded. The link ID is used to distinguish between different links in an endpoint. The type field is used to distinguish between an information frame and a message frame. The serial number field and the header check field are used to detect and report link error code, frame loss, repetition, disorder and other faults. When an information frame is received, a message frame needs to be returned to an opposite end, and a response is made to the reception state of the information frame. When a message frame is received, no response is needed. After the information frames of the same link ID are sent, next information frame can be sent only when a message frame returned by an opposite end is received. For the sending of information frames of different link IDs, there is no need to wait for a message frame, and the information frames of different link IDs can be sent in a staggered manner. The reliability problem of point-to-point transmission via the Ethernet is solved, and the method is simple and efficient.

Description

technical field [0001] The invention belongs to the field of Ethernet communication and bus transmission, and in particular relates to a method for reliable Ethernet point-to-point transmission, which is applied to the Ethernet point-to-point communication network requiring high reliability. Background technique [0002] In applications such as network communication and bus transmission, point-to-point transmission is often required, and TCP and UDP protocols are generally used. Since UDP does not provide reliability, TCP is used for applications requiring reliability. But both TCP and UDP are transport layer protocols built on the physical layer, link layer and network layer. Generally, TCP / IP protocol stack is used to support software implementation. Hardware implementation of TCP / IP protocol is difficult and the design is complex. Point-to-point links such as HDLC and PPP can also be used for transmission. However, there is no simple and efficient method for realizing...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/00
CPCH04L1/004
Inventor 李文健
Owner NO 8357 RES INST OF THE THIRD ACADEMY OF CHINA AEROSPACE SCI & IND
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