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Method, system and equipment for finding link

A link discovery and link technology, applied in the field of link discovery, can solve problems such as automatic discovery of cross-layer links

Active Publication Date: 2014-05-28
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a method for link discovery, aiming at solving the problem of how to make the routing controller and the transmission network controller automatically discover the information of the cross-layer link

Method used

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  • Method, system and equipment for finding link
  • Method, system and equipment for finding link
  • Method, system and equipment for finding link

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Embodiment Construction

[0097] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0098] The following descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the protection of the present invention. within range.

[0099] In an embodiment of the present invention, the flow of a link discovery method is as follows figure 1 As shown, the method includes the following steps:

[0100] Step 101, the first controller sends a first message to the first node, the first messag...

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Abstract

The invention provides a method for finding a link. According to the method, a first controller sends a first information to a first node, the first node receives the first information, and a message found by a second link is sent to a second node by a first port; the second node receives the message found by the second link at a second port and sends a second information to a second controller according to a tag, and the second information carries the message found by the second link and a second port identity; the second controller receives the second information, extracts a first port identity of the message found by a first link and the second port identity of the second information, and determines that a link exists between a first port of the first node and the second port of the second node so that automatic finding of the information of a cross-layer link can be realized via a routing controller and a transmission network controller, manual configuration is reduced, the realization is simple, and the reliability is high.

Description

technical field [0001] The invention belongs to the communication field, and in particular relates to a link discovery method, system and equipment. Background technique [0002] The operator's network is usually a multi-layer network. For example, the lower layer can adopt transmission technologies such as Synchronous Digital Hierarchy (SDH), Optical Transport Network (OTN), and Wavelength Division Multiplexing (WDM). To build a transport network to carry upper-layer Internet Protocol (Internet Protocol, IP), MPLS and other types of packet switching networks. [0003] For a multi-layer network, centralized control can be adopted. For example, a centralized transport network controller is introduced into the transport network, and the transport network controller implements network topology discovery, path calculation, and path establishment. Among them, in terms of path establishment, the transport network controller can use such as the OpenFlow protocol to directly issue ...

Claims

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Application Information

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IPC IPC(8): H04L12/701H04L45/02H04L45/50
CPCH04L43/0811H04L41/12H04L45/02H04L45/50H04L45/64
Inventor 林毅
Owner HUAWEI TECH CO LTD
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