Mapping device and method for optical transport data units

A technology of data unit and mapping device, applied in the field of optical transmission

Active Publication Date: 2011-01-05
福建省永阳国有资本投资集团有限公司
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  • Abstract
  • Description
  • Claims
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  • Mapping device and method for optical transport data units
  • Mapping device and method for optical transport data units
  • Mapping device and method for optical transport data units

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Embodiment Construction

[0039] The technical solutions of the present invention will be further elaborated below in conjunction with the accompanying drawings and specific embodiments.

[0040] The mapping device of the optical transport data unit of the present invention can directly map data from ODUk, such as ODU1, ODU2 to the TFI-5 bus; it can also first map data from ODUk to virtual container C-4-Xc, such as C-4- 17c, C_4_68c, and then mapped to the TFI-5 bus from C-4-Xc.

[0041] Among them, the data transmission rate of ODU1 is 2.498775126Gbps, the data transmission rate of ODU2 is 10.037273924Gbps, and the data transmission rate of TFI-5 is 2.48832Gbps, so 5 TFI-5 buses can accommodate 4 channels of ODU1 or 1 channel of ODU2. When mapping data from ODUk to virtual container C-4-Xc, according to the OIF-TFI-5-01.0 agreement, the data of ODU1 can be mapped to C-4-17c, and the data of ODU2 can be mapped to C-4 -68c.

[0042]The following takes the mapping of ODU1 data as an example to illustra...

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Abstract

The invention discloses a mapping device for optical transport data units, which comprises a first-in first-out (FIFO) cache and a data assembly and output module, wherein the FIFO cache is used for reading optical data unit (ODUk) data; and the data assembly and output module is used for reassembling the ODUk data in the FIFO cache, and writing the reassembled ODUk data into a backboard bus interface standard (TFI-5) bus. The invention also provides a mapping method for the optical transport data units. Through the device and the method, the ODUk data can be mapped onto the TFI-5 bus.

Description

technical field [0001] The invention relates to the field of optical transmission, in particular to a mapping device and method for an optical transmission data unit. Background technique [0002] With the rapid development of communication technology, the amount of data services carried by communication networks has increased rapidly, especially the rapid development of data services such as broadband, IPTV, and video, which puts forward new requirements for operators' transmission networks. The transmission network must be able to provide massive bandwidth to adapt to this kind of data growth, and more importantly, the transmission network must be able to perform fast and flexible service scheduling, and provide comprehensive and convenient network maintenance and management, such as OAM (Operation Administration and Maintenance) functions , to meet the needs of data services. [0003] Optical Transport Network (OTN, Optical Transport Network) is an optical communication ...

Claims

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Application Information

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IPC IPC(8): H04L29/06H04Q11/00
Inventor 王迪
Owner 福建省永阳国有资本投资集团有限公司
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