A routing resource allocation method and device for an optical network
An optical network and routing technology, applied in the field of optical communication, can solve problems such as inapplicability, achieve reasonable routing resource allocation, and achieve the effect of routing resource allocation
Active Publication Date: 2021-11-16
BEIJING UNIV OF POSTS & TELECOMM +1
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Problems solved by technology
[0003] In the hybrid grid optical network with multi-dimensional multiplexing, the traditional routing resource allocation method cannot meet the constraints of different dimensions such as wavelength / spectrum and space at the same time, so it is no longer applicable.
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[0047] In order to make the purpose, technical solutions and advantages of the present disclosure clearer, the present disclosure will be further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings.
[0048]It should be noted that, unless otherwise defined, the technical terms or scientific terms used in one or more embodiments of the present specification shall have ordinary meanings understood by those skilled in the art to which the present disclosure belongs. "First", "second" and similar words used in one or more embodiments of the present specification do not indicate any order, quantity or importance, but are only used to distinguish different components. "Comprising" or "comprising" and similar words mean that the elements or items appearing before the word include the elements or items listed after the word and their equivalents, without excluding other elements or items. Words such as "connected" or "conn...
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One or more embodiments of this specification provide a routing resource allocation method and device for an optical network, including: determining a candidate route set including at least one candidate route according to a received service request; The routing resource auxiliary table of the current resource state of the network calculates the routing spectrum looseness of each candidate route in the candidate route set; sorts each candidate route according to the order of the routing spectrum looseness of each candidate route; From the sorted alternative routes, select the alternative routes in order of size, and determine whether each link of the selected alternative routes has idle resources that meet the business needs; if so, based on the idle resources of the selected alternative routes resources, and establish an optical path to realize business requirements. The method of this embodiment can realize reasonable allocation of routing resources in a multi-dimensional multiplexing hybrid grid optical network.
Description
technical field [0001] One or more embodiments of this specification relate to the technical field of optical communication, and in particular, to a method and device for allocating routing resources of an optical network. Background technique [0002] In the optical network, compared with the fixed grid, the resource utilization rate of the flexible grid is greatly improved. However, considering cost factors, some fixed grids in the optical network are upgraded to flexible grids to form a hybrid grid optical network. It can not only improve resource utilization, but also balance cost factors. At the same time, an optical network based on multi-dimensional multiplexing such as frequency division multiplexing and space division multiplexing can increase the carrying capacity of the optical network. [0003] In the hybrid grid optical network with multi-dimensional multiplexing, the traditional routing resource allocation method cannot meet the constraints of different dimens...
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IPC IPC(8): H04L12/707H04L12/751H04L45/24H04L45/02
CPCH04L45/24H04L45/22H04L45/02
Inventor 郁小松陈文征赵永利张杰李亚杰徐鑫
Owner BEIJING UNIV OF POSTS & TELECOMM