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Data transmission method and device

A technology of a data transmission method and a data transmission device, applied in the field of communication

Active Publication Date: 2020-11-03
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The main purpose of the present invention is to provide a data transmission method and device, aiming to solve the problem of transmitting Ethernet data of any rate and multiple channels on a unified OTN transmission platform

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  • Data transmission method and device
  • Data transmission method and device

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Embodiment Construction

[0112] It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0113]The invention provides a data transmission method, referring to figure 1 , figure 1 It is a schematic flow chart of an embodiment of the data transmission method of the present invention. In one embodiment, the data transmission method includes:

[0114] Step S100, encapsulating the received first Ethernet data frame into a first GFP-F data frame.

[0115] The data transmission device receives the first Ethernet data frame transmitted by the Ethernet, adopts the GFP-F mode and maps the received first Ethernet data frame to the first GFP-F data frame for output, and maps the Ethernet data frame to For GFP-F data frames, the Ethernet data frames of each channel occupy the same data bus in the form of time division multiplexing, and the GFP-F data frames become serial Ethernet data frames after mapping. Generall...

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Abstract

Disclosed is a data transmission method, comprising: encapsulating a received first Ethernet data frame into a first GFP-F data frame; converting the first GFP-F data frame into a first ODUflex data frame; forwarding the first ODUflex data frame to a designated port of a cross matrix back panel; converting the first ODUflex data frame forwarded to the designated port into a second GFP-F data frame; and de-framing the second GFP-F data frame into a second Ethernet data frame and outputting the second Ethernet data frame. Further disclosed is a data transmission device. The present invention solves the problem of the transmission of data of multi-channel Ethernet at any rate on a uniform OTN transport platform. Compared with the traditional WDM, types of boards are greatly reduced, and the flexibility of board and port access, mapping, multiplexing and scheduling capabilities are improved.

Description

technical field [0001] The invention relates to the communication field, in particular to a data transmission method and device. Background technique [0002] With the development of the Internet and the rapid growth of data traffic, the DWDM (Dense Wavelength Division Multiplexing) network of optical communication can no longer meet the needs. The International Standards Organization proposes to use OTN (Optical Transport Network, Optical Transport Network) as the bottom layer Transport networks to meet the ever-increasing demand for data bandwidth. The OTN network defines the frame format, overhead and speed level, etc. Currently, the OTN defines four transmission rate levels, which are OTU1, OTU2, OTU3, and OTU4 of an Optical Channel Transport Unit (OTUk for short). The OTUk signal is an actual transmission signal, and a frame is composed of 4 rows by 4080 columns (4*4080 bytes). The frame header adopts a special flag signal, occupying the first column to the sixth col...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/46H04Q11/00
CPCH04J3/16H04Q11/00
Inventor 杨湘鄂钟长龙
Owner ZTE CORP
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