A connection establishment method, system and node device

A node device and connection establishment technology, applied in the field of communication, can solve problems such as not supporting SDM networks based on multi-core optical fibers, and achieve high reliability and simple implementation
CN110073671BActive Publication Date: 2020-11-17成都交子新兴金融投资集团股份有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
成都交子新兴金融投资集团股份有限公司
Publication Date
2020-11-17

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Abstract

The present application discloses a connection establishment method for a space-division multiplexing SDM network, including: a first node receives a path message, and the path message includes a plurality of first label objects, and each first label object includes a The first field of the number of an optical core in the core fiber, wherein the path message is also used to indicate the free spectrum information of each optical core in the multi-core optical fiber; the first node indicates the number of each optical core in the path message The idle spectrum information and the idle spectrum information of the corresponding optical core on the first link are intersected, and the path message carrying the intersection result is sent through the first link, wherein the first link is between the first node and the first node to Links between adjacent nodes in the direction of the second node. The scheme provided by this application can support the SDM network based on multi-core optical fiber, and has simple implementation and high reliability.
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Description

technical field

[0001] The present application relates to the field of communication technologies, and in particular to a connection establishment method and system for a space division multiplexing SDM network, and a node device. Background technique

[0002] With the vigorous development of Internet technology, especially the popularization of mobile Internet, "connection" has gradually become a basic resource and demand as important as air and water in human society. The rapid development of social networks, the Internet of Things, and smart city networks are the direct technical manifestations of the connection between "people and people", "things and things" and "people and things". On this basis, various Internet applications and research It is also showing explosive growth, such as various mobile applications, 4K video, virtual reality, etc. Behind these applications and technologies are huge bandwidth requirements, which will inevitably put forward higher requiremen...

Claims

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