Inter-board channel protection device and method
A channel protection and board-to-board technology, applied in the field of optical communication, can solve problems such as increased cost, failure of protection switching to be completed normally, usage restrictions, etc., to achieve the effect of reducing equipment cost, reducing the number of subracks, and avoiding losses
Inactive Publication Date: 2008-01-16
HUAWEI TECH CO LTD
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Problems solved by technology
[0005] In the above technical solution, the main control board and the main and backup OCU / OTU boards must be on the same subrack, and the use is limited by hardware conditions.
In some cases, in order to achieve channel protection, a new subrack has to be added for this purpose, which increases the cost
[0006] In addition, generally only one main control board is installed on a subrack for single-board control. Since the protection switching action in the above technical solution requires the main control board to participate in the control, if the main control board is damaged, the protection switching implemented on the subrack cannot Completed normally
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[0051] The inter-board channel protection method and device of the present invention realize the single-board control across sub-racks by expanding the existing inter-sub-rack communication technology, thereby allowing mutually protected single boards to be located on different sub-racks, reducing the time required for inter-board channel protection. The number of subracks is required to reduce the dependence of the network configuration of protection switching on hardware.
[0052] The inter-board channel protection device of the present invention mainly includes:
[0053] The main and standby boards are set on different subracks, where the main board is used as the main service channel board, and the backup board is used as the backup service channel board. Any subrack, so it is convenient for network designers to plan, so that the configuration of the protection board is not limited by hardware conditions, and the purpose of saving subracks is achieved. In addition, the ma...
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The invention discloses a plate channel protecting equipment, which can be used in wavelength-division multiplex system. The device comprises: a main standby veneer mounted on different minor holders, wherein, the main veneer is used as main service channel veneer and the standby veneer is used as standby service channel veneer; system control and communication units mounted on every minor holder, wherein, one of said units is used as main system control and communication unit and the left are used as minor system control and communication units, while the main one has the communication to the minor one over the minor holder and controls the main standby veneer to switch according to the condition of main standby veneer or the local switching requirement to reach the plate channel protection. In addition, the invention discloses a relative plate channel protecting method. Since the veneer protection of over minor holder is realized in the invention, the cost of equipment is reduced.
Description
technical field [0001] The invention relates to the technical field of optical communication, and more specifically, the invention relates to an inter-board channel protection device and method applied in a wavelength division multiplexing system. Background technique [0002] With the rapid development of WDM (Wavelength Division Multiplexing) technology and the doubling of transmission rates, the security and reliability of transmission channels have become a factor that has to be considered in network development. [0003] Fig. 1 is a technical solution for channel protection between boards in a single subrack in the prior art. The single boards supported by the main control to protect the inter-board channel include a service convergence unit (OCU, Optical Conversion Unit) single board and an optical wavelength conversion unit (OTU, Optical Transponder Unit) single board. As shown in the figure, at the sending end, the client-side signal is divided into two paths throug...
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IPC IPC(8): H04B1/74H04J14/02H04B10/12H04B10/038H04B10/25
Inventor 曹振奇
Owner HUAWEI TECH CO LTD