Method, system for protection switching
A protection switching and subrack technology, applied in the communication field, can solve the problem of no network element control unit, dynamic cross-connect unit, etc., and achieve the effect of avoiding switching deadlock or wrong switching
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example 1
[0048] Example 1, the standard subrack notifies the relevant business units on the standard subrack to perform protection switching with sustainable events, and notifies the extended subrack with sustainable events to perform protection switching; the extended subrack notifies the extended subrack with sustainable events All business units on the subrack perform protection switching, and notify the standard subrack to perform protection switching with an instantaneous event.
[0049] In this example, a multi-subrack system with one standard subrack and one extended subrack is taken as an example to describe the above technical solution of the embodiment of the present invention. The architecture of the multi-subrack system can refer to figure 2 to understand, image 3 It is a flow chart of detailed processing of the protection switching method according to Example 1 of the embodiment of the present invention, such as image 3 As shown, including the following processing:
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example 2
[0055] In the second example, the standard subrack notifies the relevant business units on the standard subrack to perform protection switching with sustainable events, and notifies the extended subrack with instantaneous events to perform protection switching; the extended subrack notifies the extended subrack with sustainable events All service units on the rack perform protection switching, and notify the standard subrack to perform protection switching with sustainable events.
[0056] This example also takes a multi-subrack system with one standard subrack and one extended subrack as an example to describe the above technical solution of the embodiment of the present invention. Figure 4 It is a flow chart of detailed processing of the protection switching method according to Example 2 of the embodiment of the present invention, such as Figure 4 As shown, including the following processing:
[0057] Step S402, the device is powered on and started, and the two dynamic cr...
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