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Method and device for neighbor discovery

A neighbor discovery and neighbor technology, applied in the field of data communication, can solve problems such as spending a lot of manpower, and achieve the effect of improving accuracy and avoiding impact.

Active Publication Date: 2018-01-09
NEW H3C TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, a few years ago, a business deployment often took several months, and it also required a lot of manpower; now an Internet business may require a small amount of manpower to be deployed within a few days

Method used

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  • Method and device for neighbor discovery
  • Method and device for neighbor discovery
  • Method and device for neighbor discovery

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Embodiment Construction

[0020] As described in the background, in an SDN network, the OpenFlow controller discovers the network topology, generally by constructing and sending neighbor packets based on all ports of the OpenFlow switch to discover neighbor OpenFlow switches. Through this technology to discover the network topology structure, the OpenFlow controller usually needs to perform the following two aspects of processing: based on the port construction of the OpenFlow switch and instructing the port to send neighbor packets to the port of the peer OpenFlow switch; Neighbor packets and calculate the neighbor relationship between OpenFlow switches based on this.

[0021] The specific process is as follows:

[0022] Step a. Traversing all OpenFlow switches, for each OpenFlow switch, based on its port configuration and instructing the port to send a neighbor message to the corresponding port of the peer OpenFlow switch.

[0023] For the current OpenFlow switch, the OpenFlow controller obtains all...

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Abstract

The invention provides a neighbor discovery method and device, which are applied in an OpenFlow network environment where physical ports and logical ports coexist. It includes the following steps: the port identification unit identifies the physical ports on all OpenFlow switches, and sends neighbor packets to the peer OpenFlow switch based on the physical ports; the packet processing unit receives the packets reported by the physical ports of the OpenFlow switch, and calculates the network Topology. The present invention can effectively prevent logical ports in the OpenFlow network environment from affecting the OpenFlow network topology calculation.

Description

technical field [0001] The invention relates to the field of data communication, in particular to a method and device for neighbor discovery in an OpenFlow network environment. Background technique [0002] With the continuous development of Internet technology, customers have shorter and shorter time requirements for deploying services on the Internet. For example, a few years ago, a business deployment often took several months and a lot of manpower; now an Internet business may require a small amount of manpower to be deployed within a few days. How to quickly deploy an Internet service involves some new technologies, such as SDN (Software Defined Network, software-defined network). Under the network model defined by SDN, the rapid deployment of services can be realized through software, thereby reducing manpower investment and shorten the construction period. Among them, among numerous SDN technologies, OpenFlow is one of the most representative technologies. [0003]...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/751H04L45/02
Inventor 曾勇刚
Owner NEW H3C TECH CO LTD