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Discovery method and device based on Open Flow protocol for control plane device

A processing method and control plane technology, applied in the field of communication, can solve problems such as complicated configuration and no solution, and achieve the effect of automatic discovery

Active Publication Date: 2013-07-17
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, in the application scenario where different services are deployed based on different physical devices or devices from different device manufacturers are managed in different domains, the configuration is more cumbersome.
[0007] For the above-mentioned problems in related technologies, no effective solution has been proposed yet

Method used

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  • Discovery method and device based on Open Flow protocol for control plane device
  • Discovery method and device based on Open Flow protocol for control plane device
  • Discovery method and device based on Open Flow protocol for control plane device

Examples

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Embodiment 1

[0033] figure 1It is a flowchart of a method for discovering and processing a control plane device based on the OpenFlow protocol according to Embodiment 1 of the present invention. like figure 1 As shown, the method includes:

[0034] Step S102, receiving identification information from the forwarding plane device based on the OpenFlow protocol, wherein the identification information is the identification information of the forwarding plane device, and the above identification information corresponds to the control plane device information in the MIB;

[0035] Step S104, obtaining the above-mentioned control plane device information through matching in the MIB according to the above-mentioned identification information;

[0036] Step S106, sending control plane device information to the forwarding plane device.

[0037] Through the above processing steps, the technical means of automatically matching the above control plane device information and sending it to the forwardi...

Embodiment 2

[0051] The purpose of this embodiment is to provide a method for an SDN network to automatically discover OpenFlow control plane devices, which can simplify OpenFlow network configuration, improve the mechanism for OpenFlow network forwarding plane devices to discover control plane devices, and make the OpenFlow network more intelligent and improve Maintainability of OpenFlow networks.

[0052] The main design idea of ​​this embodiment is to automatically learn the Openflow control plane device in the DHCP management domain on the DHCP device (DHCP Server, DHCP Proxy, DHCP Relay Agent, etc.) The results are saved in a management information database (MIB) maintained locally to realize domain management of these Openflow control plane devices. When the OpenFlow forwarding plane device applies for an IP address from the DHCP server, the DHCP device matches the stored entries in the local MIB according to the domain name information in the options reported by the OpenFlow forward...

Embodiment 3

[0076] This embodiment mainly describes the process in which the OpenFlow forwarding plane device discovers the OpenFlow control plane device through the DHCP server and normally establishes a link in a scenario where the controller of the OpenFlow control plane device and the configuration point are not separated. For ease of description, and only as an example, the DHCPv4 protocol is used in this embodiment to describe the dynamic discovery process. The DHCP device is the DHCP Server, the OpenFlow control plane device is the OpenFlow Controller, and the OpenFlow forwarding plane device is the OpenFlow Switch. In this embodiment, no separate OpenFlow Configuration Point device is provided, and the OpenFlow Controller performs the configuration work. It also specifically describes how the DHCP device perceives SDN Processing when network OpenFlow devices release addresses or go offline.

[0077] For detailed business flow chart, see Figure 5 Shown:

[0078] Step S502: After...

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PUM

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Abstract

The invention provides a discovery method and device based on an Open Flow protocol for a control plane device. The method comprises the steps of receiving identification information from a forwarding plane device based on the Open Flow protocol, wherein the identification information is the identification information of the forwarding plane device, the identification information is corresponding to information of the control plane device in a management information base (MIB); matching the identification information in the MIB to obtain the information of the control plane device; and sending the information of the control plane device to the forwarding plane device. By means of the technical scheme, the technical problem that the forwarding plane device cannot discover the control plane device automatically and effectively in relevant technologies is solved, the forwarding plane device can discover the control plane device automatically and can further perform self-adaptive adjusting on the control plane device.

Description

technical field [0001] The present invention relates to the communication field, in particular, to a method and device for discovering and processing a control plane device based on the OpenFlow (OF) protocol. Background technique [0002] Software Defined Network (SDN for short) is a new type of network architecture. Its design concept is to separate the control plane of the network from the data forwarding plane and realize programmable control. The SDN network architecture is usually abstractly defined into three layers: the first layer is the forwarding plane entity, including various software and hardware components to realize the forwarding function; the second layer is the entity that manages and controls the forwarding entity of the first layer, and the The third layer is based on the first two layers of basic network applications and services. The interface between the first two layers is called the southbound interface of SDN. At present, the OpenFlow protocol is ...

Claims

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Application Information

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IPC IPC(8): H04L12/70H04L29/12
CPCH04L12/6418H04L41/0886H04L45/64H04L41/0806H04L61/5014H04L41/0895H04L41/40H04L41/122
Inventor 梁乾灯石磊易建
Owner ZTE CORP
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