Single-chip protection switching device
A technology of protection switching and single board, applied in the direction of electrical components, transmission systems, etc., can solve the problem of low flexibility and achieve the effect of high flexibility
Inactive Publication Date: 2007-12-19
杨世娟
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[0005] To sum up, the existing technology does not propose an effective protection switching scheme for boards with outgoing lines (including business processing boards and control boards), but only proposes protection for boards without outgoing lines. The switchover processing scheme, and because the information exchange between the boards without outgoing lines needs to be routed through the backplane, so the protection switching scheme proposed for the single boards without outgoing lines will be affected by the backplane during the implementation process. Routing constraints, the implementation flexibility is not high
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[0029] The present invention mainly proposes a protection switching scheme for a single board with outgoing lines. Generally, the outgoing lines on the single board are drawn out through the outgoing line board or the handle bar on the single board. Such a protection switching scheme for the single board can be realized through the outgoing line. The information exchange between the protected board and the protection board does not need to be routed through the backplane to realize the information exchange between the protected board and the protection board. The advantage of line limitation, and there is no special requirement on the positional relationship between the protected single board and the protected single board, so the implementation process is simple and flexible.
[0030] The specific implementation manners of the single-board protection switching device of the present invention will be described in detail below with reference to various drawings.
[0031] Please...
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The invention is in use for protecting single board of having outgoing lines. The parts to be protected include following units: protection boards in use for replacing boards to be protected when fault occurs on the board to be protected; spare external interface configured for external interface of single board to be protected; outgoing line for connection between spare external interface and external interface of single board to be protected; fault detection unit in use for detecting operating state of single board to be protected; connection unit in use for connecting single board to be protected with its external interface in normal condition, and for rearrangement between external interface of single board to be protected and spare external interface. Thus, implementation procedure for protecting single board is not restricted by the wiring of backboard.
Description
technical field [0001] The invention relates to single board protection technology in communication equipment, in particular to a single board protection switching device. Background technique [0002] In the existing communication system, communication equipment such as some core switches are formed by plugging multiple single boards, and each single board can communicate with each other, and can also communicate with the outside world through an external interface. Therefore, the single boards in these communication devices are protected, especially the business processing single boards, so that when a fault occurs, the business processing single boards can be switched to the backup business processing single boards in time to continue working. Stability plays a very important role. [0003] Please refer to Figure 1, which is a schematic diagram of the structure of each board in a communication device in an existing communication system; in Figure 1, board A, board B, boa...
Claims
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IPC IPC(8): H04B1/74
Inventor 吴兴翟爱亭穆小宝陈金助郭家元
Owner 杨世娟