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A host discovery method, device and system

A host discovery and host technology, which is applied in the field of computer networks, can solve the problems of increasing network overhead and the delay of the first packet of data communication, and achieves the effect of reducing overhead and waste of time and space.

Active Publication Date: 2018-01-02
HONOR DEVICE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the existing solution, the OpenFlow controller can discover host information only after the communication channel between the OpenFlow controller and the OpenFlow switch is successfully connected.
Moreover, when the host requests data, it needs to find it by broadcasting, which increases the network overhead and the delay of the first packet of data communication.

Method used

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  • A host discovery method, device and system
  • A host discovery method, device and system
  • A host discovery method, device and system

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Embodiment Construction

[0041] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0042] Embodiments of the present invention provide a host discovery method, the method is applied to OpenFlow switches, refer to figure 1 shown, including:

[0043] 101. When the communication channel between the OpenFlow switch and the OpenFlow controller is disconnected, the OpenFlow switch receives the host information packet sent by the host.

[0044] Wherein, the host information packet carries an Internet Protocol (IP) address and a Media Access Contro...

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Abstract

Embodiments of the present invention provide a host discovery method, device, and system, which relate to the field of computer network technology. When the communication channel between the OpenFlow switch and the OpenFlow controller is disconnected, the OpenFlow switch actively receives the host information packet sent by the host, and then When the OpenFlow switch is connected to the communication channel of the OpenFlow controller, the IP address and MAC address of the host in the received host information packet are sent to the OpenFlow controller, so that the OpenFlow controller and the OpenFlow switch do not need to establish a communication channel , that is, the function of obtaining the information of the host, which reduces the waste of time and space, and can reduce the overhead of the network and the delay of the first packet of data communication.

Description

technical field [0001] The invention relates to the technical field of computer networks, in particular to a host discovery method, device and system. Background technique [0002] Software Defined Network (SDN) allows programming a network as if it were a computer. This provides an abstraction layer of the physical network directly to the control element, allowing the network to be set up and operated through software. This sets the stage for further innovations. OpenFlow technology is a method to realize SDN. The core idea of ​​this technology is to transform the packet forwarding process completely controlled by the switch or router into an independent process completed by the OpenFlow switch (OpenFlow Switch) and the OpenFlow control server (OpenFlow Controller). Process; it is transformed from specifying the flow of packets in the traditional network to the transmission path of the data flow in the network specified by the controller. [0003] The current OpenFlow ne...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/06H04L29/12H04L12/741H04L45/74
Inventor 文白林王永灿
Owner HONOR DEVICE CO LTD