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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

Active 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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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The embodiment of the present application provides a connection establishment method for SDM network, which solves the problem that the existing connection establishment method does not support the SDM network based on multi-core optical fiber

Method used

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  • A connection establishment method, system and node device
  • A connection establishment method, system and node device
  • A connection establishment method, system and node device

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Embodiment Construction

[0049] The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.

[0050] The present application can be applied to an automatically switched optical network (Automatically Switched Optical Network, ASON) including a control plane. Such as figure 2 As shown, the ASON network architecture includes a management plane, a control plane and a transmission plane. Wherein, the transmission plane is composed of a series of transmission entities, such as various nodes and traffic engineering (Traffic Engineering, TE) links between nodes. The transmission plane provides a channel for service transmission, which can carry end-to-end one-way or two-way service data of client equipment. The client device is connected to a certain node (for example, node 2) on the transmission plane through the User Network Interface (UNI), and the client device dynamically requests to obtain,...

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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.

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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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04Q11/00H04L12/913H04L45/50H04L47/724
CPCH04J14/0267H04J14/0256H04L47/724H04L45/50H04B10/25H04Q11/0062H04Q2011/0077H04Q11/00
Inventor 高志江张弦
Owner 成都交子新兴金融投资集团股份有限公司
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