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A path computing method for wave-division device

A path calculation and path technology, applied in the field of optical communication, can solve the problems of difficult upgrade and expansion, poor flexibility, high maintenance cost, etc., and achieve the effect of easy expansion, easy maintenance, and unified algorithm

Active Publication Date: 2008-03-19
ZTE CORP
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Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a path calculation method for WDM equipment, so that the path calculation of WDM equipment does not need to be strongly related to typical networking methods, and overcomes the poor flexibility, high maintenance costs, and problems of existing calculation methods. Disadvantages of being difficult to upgrade and expand

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  • A path computing method for wave-division device
  • A path computing method for wave-division device
  • A path computing method for wave-division device

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Embodiment Construction

[0033] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0034] FIG. 3 is a schematic diagram of the network structure of this embodiment, where hollow arrows indicate non-wavelength division signal access, dotted arrows indicate optical fiber connections within network elements, and solid arrows indicate optical fiber connections between network elements.

[0035] In optical terminal equipment OTM network element A, non-wavelength division signals are connected by two access boards OTUTC1 and OTUTC2. The optical fiber connection sends the signal to the multiplexer board OMU; the OMU board combines the signals of two wavelengths into one multiplexed signal, and then sends the signal to the optical power amplifier board OBA, which amplifies the signal and transmits it through the The optical fiber connection sends it to the optical line amplifying device OLA network element B.

[0036] There is only one optical lin...

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Abstract

The invention discloses a path calculating method for wavelength division equipment, belonging to the field of optical communication. The method comprises firstly determining data parameters of network; then carrying out single-layer path searching according to the sequence from a service layer to a task layer and according to the determined data parameters to obtain path of each layer, wherein the data parameters include port characteristic type, net element internal connection type data, and connection type data among net elements. The invention has higher extensibility and reusability, can be easily understood and conveniently maintained, and simultaneously can effectively reduce the software maintenance and costs for upgrading and extending.

Description

technical field [0001] The invention belongs to the field of optical communication, in particular to a path calculation method of a wavelength division device in an optical transmission network management system. Background technique [0002] With the development of optical communication technology, more and more wavelength division multiplexing devices are used. A WDM device is generally composed of multiple boards that implement different functions. The ports of each board inside the device are connected by optical fibers in the network element or electrical crossovers on the backplane. The ports of the boards between different devices The networks are connected by optical fibers between NEs. A WDM path is a combination of a series of WDM boards and optical fiber connections between boards or backplane crossovers formed to complete a certain service transmission. Similar to the Synchronous Data Transmission (SDH) path, the WDM path is also managed hierarchically. As show...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/24H04B10/20H04J14/02
Inventor 张晓冬刘晓艳邓万球
Owner ZTE CORP
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