Optical network control method for supporting multiple transmission exchange modes
A control method and optical network technology, applied in the field of network communication, can solve the problems of increasing the complexity of network control methods, difficult to solve the problem of architecture integration, and not supporting other types of network physical layer restrictions, so as to improve resource utilization and reduce congestion. efficiency, enhanced scalability, and multi-domain interoperability
Active Publication Date: 2015-11-18
TSINGHUA UNIV
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Problems solved by technology
Such an approach not only greatly increases the complexity of the network control method, but also sometimes makes it difficult to solve the problem of architecture integration
The underlying reason is that networks with different transmission modes have different restrictions on the utilization of physical resources, and the dedicated architecture may not support the physical layer restrictions of other types of networks.
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[0028] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.
[0029] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", " The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inner" and "outer" are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and Simplified descriptions, rather than indicating or implying that the device or element refe...
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The invention discloses an optical network control method for supporting multiple transmission exchange modes. The method includes following steps: in the conventional multi-domain heterogeneous optical network, a visualization server is additionally provided to accomplish the visualization mapping of various physical resources, an isomorphic virtual network is established, a master controller performs routing computation and resource allocation of the virtual network, and an obtained result is converted to a corresponding physical resource configuration instruction via the visualization server and sent to a subnet controller; and the subnet controller accomplishes resource allocation according to the instruction. The optical network control method is advantageous in that through virtualization mapping of the physical resources, the network control problem brought by an optical network heterogeneous transmission mechanism can be effectively solved, the blocking rate of a heterogeneous network is reduced, the utilization rate of resources is increased, and an important significance is attached to the improvement of scalability and multi-domain interoperability of the modern optical network.
Description
technical field [0001] The invention belongs to the technical field of network communication, and in particular relates to an optical network control method supporting multiple transmission and switching modes. Background technique [0002] With the rapid development of data services such as mobile communications, broadband access, data centers, and cloud computing, the demand for optical network capacity is increasing day by day. In the past two decades, a large number of transmission and switching technologies have been produced to improve the capacity of optical networks. Today's optical network is a heterogeneous optical network composed of multiple transmission and switching modes. Realizing unified control and interconnection of optical networks with different transmission technologies has become an urgent problem to be solved. [0003] However, due to the huge difference in resource utilization limitations of optical networks with different transmission and switching...
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IPC IPC(8): H04Q11/00H04L12/24
Inventor 郑小平罗瑞杰华楠
Owner TSINGHUA UNIV