Neighbor discovery method and device

A neighbor discovery and neighbor technology, applied in the field of network communication, can solve the problem of increasing the load of the OpenFlow controller, and achieve the effect of reducing message interaction and shortening the time

Inactive Publication Date: 2015-01-14
NEW H3C TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Generally, SDN networks, especially virtual switch networks, often use fully connected networking. At this time, assuming that there are M devices in the network, there will be M

Method used

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  • Neighbor discovery method and device

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Embodiment Construction

[0039] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0040] As the basic function of network devices, LLDP is an essential function even for OpenFlow devices. Based on this, the present invention uses LLDP, which is a necessary function of OpenFlow devices, to enable OpenFlow devices to actively exchange LLDP messages with each other to establish an LLDP neighbor database and report it to the OpenFlow controller, so as to reduce the number of reports between the OpenFlow controller and the OpenFlow device. text interaction.

[0041] pass below image 3 The method provided by the invention is described:

[0042] see image 3 , image 3 The flow chart of the method provided by the present invention. Such as image 3 As shown, the method includes the following steps:

[0043] In step 301, the Open...

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Abstract

The invention provides a neighbor discovery method and device. Part of the process of an OpenFlow controller for collecting network topology is shared by an OpenFlow device, and the network topology is reported by the OpenFlow device actively, so that the network topology collecting time of the OpenFlow controller is shortened, and message interaction between the OpenFlow controller and the Openflow device is effectively reduced.

Description

technical field [0001] The present application relates to network communication technology, in particular to a neighbor discovery method and device. Background technique [0002] Software Defined Network (SDN: Software Defined Network) is a new type of network architecture. Its core idea is to separate the control plane and forwarding plane of network equipment, and provide core network and application innovation through centralized and flexible control of network traffic. good platform. [0003] OpenFlow is a communication interface standard between the controller and the forwarding layer defined in the SDN architecture. OpenFlow allows the controller to directly access and operate the forwarding plane of network devices, which may be physical or virtual. The OpenFlow network consists of OpenFlow devices (Switch) and OpenFlow controllers (Controller) through secure channels (OpenFlow channel), such as figure 1 shown. [0004] In the OpenFlow network, the OpenFlow contro...

Claims

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Application Information

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IPC IPC(8): H04L12/801
CPCY02D30/00
Inventor 徐鹏飞
Owner NEW H3C TECH CO LTD
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