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A data transmission method and device

A data transmission method and data retransmission technology are applied in the field of data transmission methods and devices, and can solve the problems of time extension and low data transmission efficiency.

Active Publication Date: 2018-03-09
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Embodiments of the present invention provide a data transmission method and device, which can solve the problems of low data transmission efficiency and long delay when a code error occurs in the MAC layer

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  • A data transmission method and device
  • A data transmission method and device
  • A data transmission method and device

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Embodiment Construction

[0078] 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 making creative efforts belong to the protection scope of the present invention.

[0079] An embodiment of the present invention provides a data transmission method, which is applied to a sending device. Refer to figure 1 shown, including the following steps:

[0080] 101. The sending device sends a data packet to the receiving device through a media access control MAC layer communication connection established with the receiving device.

[0081] In the embodiment of the present invention, the sending device is applied in Ethernet, and the ...

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Abstract

The present invention relates to the field of communications, and provides a data transmission method and device, which can solve the problems that the data transmission efficiency is too low and the time delay is too long when a bit error occurs in a media access control (MAC) layer in the Ethernet. The method comprises: a sending device sends a data packet to a receiving device through a communication connection of a MAC layer established between the sending device and the receiving device (101), and if the sending device determines that the data packet fails to be correctly transmitted, the sending device re-sends the data packet to the receiving device through the communication connection of the MAC layer (102). Therefore, a mechanism that ensures reliable transmission of Ethernet data is achieved on the MAC layer.

Description

technical field [0001] The present invention relates to the communication field, in particular to a data transmission method and device. Background technique [0002] FC (Fibre Channel, Fiber Channel) data, PCIE (Peripheral Component interconnect Express, fast peripheral component interconnection standard) and other data have independent transmission physical channels. In order to realize the sharing of various data on the same switching plane, in the prior art, Data is transmitted in Ethernet. [0003] Due to data congestion and weak bit error control, Ethernet data transmission has problems such as slow rate, link error, a large number of packet loss and even network failure. In the prior art, data transmission is scheduled through an Ethernet high-layer protocol, which solves the problem of link congestion to a certain extent. For example, PFC (priority-based Flow Control, priority-based flow control), ETS (Enhanced Transmission Selection, enhanced transmission selectio...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/16
CPCH04L1/16
Inventor 彭本华吴沛方洪灿
Owner HUAWEI TECH CO LTD