Method for setting path and node apparatus
A path setting and path technology, applied in the direction of digital transmission system, electrical components, transmission system, etc., can solve the problems of unable to automatically restore the path, difficult to confirm the normality of the main signal, communication service protection delay, etc.
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[0039] Embodiments of the present invention will be described with reference to FIGS. 1 to 11 using the following examples. In addition, the same reference number is attached|subjected to the substantially same part, and description is not repeated. Here, FIG. 1 is a block diagram of a communication network. Fig. 2 is a detailed block diagram of a network structure within a communication network. Figure 3 is a block diagram of a GMPLS node. Figure 4 is a block diagram of a user node. Fig. 5 is a block diagram of a monitor control device. FIG. 6 is a transition diagram illustrating path opening processing. FIG. 7 is a flowchart of processing when routing to a GMPLS node. Fig. 8 is a diagram illustrating a message format of a mutual control protocol between nodes. Fig. 9 is a diagram explaining the object content of the inter-node mutual control protocol. Fig. 10 is a transition diagram illustrating forced path opening processing. Fig. 11 is a transition diagram illustra...
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