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Automatic online method of SDN device, SDN device and controller

A technology of automatic online and controller, applied in the field of communication, can solve the problem of no general method and so on

Active Publication Date: 2017-10-20
CHINA UNITED NETWORK COMM GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, for the SDN network of operators, it is still in the exploratory stage to realize the automatic on-line of SDN equipment (that is, automatic address allocation of equipment, automatic establishment of management channel and automatic topology discovery), and there is no perfect general method

Method used

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  • Automatic online method of SDN device, SDN device and controller
  • Automatic online method of SDN device, SDN device and controller
  • Automatic online method of SDN device, SDN device and controller

Examples

Experimental program
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Effect test

Embodiment 1

[0069] The embodiment of the present invention provides a method for automatically going online with a software-defined network SDN device. The network architecture provided in the embodiment of the present invention at least includes a controller (controller) and an SDN device to be online, and between the controller and the SDN device to be online There may also be on-line SDN equipment in the room, and traditional routers may also be included between the on-line SDN equipment and the controller. refer to Figure 7 As shown, the method specifically includes:

[0070] It should be noted that: for the convenience of description, in the following embodiments, RA is automatically going online in steps S101 to S109, indicating that the SDN device is waiting to be online; after step S109, RA is automatically online, indicating that the SDN device has been online; For a device to be online, controller1 represents the first controller, and controller2 represents the second controll...

Embodiment 2

[0138] An embodiment of the present invention provides an SDN device, which includes: a sending unit 11 , a receiving unit 12 and a VLAN processing unit 13 .

[0139] If the SDN device is in the state of waiting to go online, then

[0140] The sending unit 11 is configured to broadcast a DHCP discovery message encapsulated with a VLAN ID of a virtual local area network, and the DHCP discovery message carries the device identifier of the SDN device;

[0141]The receiving unit 13 is configured to receive a first DHCP response message broadcast by the first controller, the first DHCP response message is the first DHCP response message received by the SDN device, and the first DHCP response message The file carries the management IP address assigned by the first controller to the SDN device and the IP address of the first controller;

[0142] VLAN processing unit 13, configured to place the first port receiving the first DHCP response message in the VLAN identifier;

[0143] The...

Embodiment 3

[0155] An embodiment of the present invention provides a controller, the controller includes:

[0156] The receiving unit 21 is configured to receive a DHCP discovery message encapsulated with a virtual local area network (VLAN) ID broadcast by the SDN device to be launched, wherein the DHCP discovery message carries the device identification of the SDN device to be launched;

[0157] The sending unit 22 is configured to broadcast a DHCP response message to the SDN device to be online, and the DHCP response message carries the management IP address assigned by the controller to the SDN device to be online and the IP address of the controller address;

[0158] The receiving unit 21 is further configured to receive a DHCP request message broadcast by the SDN device to be online, where the DHCP request message carries the device identifier of the SDN device to be online and the IP address of the controller;

[0159] The sending unit 22 is also configured to broadcast a DHCP resp...

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Abstract

The embodiment of the invention discloses an automatic online method of an SDN device, the SDN device and a controller, and relates to the field of communication technology. Automatic online of the SDN device is realized to simplify the device online working flow in an SDN, improve the device online efficiency and realize plug and play and plug and management of the device. The method comprises the following steps: broadcasting a DHCP discovery message packaged with a virtual local area network VLAN identifier by an to-be-online SDN device; receiving a first DHCP response message broadcasted by a first controller; setting a first port receiving the first DHCP response message in the VLAN identifier; broadcasting a DHCP request message by using the first port; receiving a DHCP answer message broadcasted by the first controller through the first port; and after the SDN device establishes an OpenFlow connection with the controller, receiving an outbound message sent by the controller, wherein the outbound message carries a link layer discovery protocol LLDP message.

Description

technical field [0001] The present invention relates to the technical field of communication, and in particular to a method for automatically going online of an SDN device, an SDN device and a controller. 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 the m...

Claims

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Application Information

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IPC IPC(8): H04L29/12H04L12/24H04L12/751H04L45/02
CPCH04L41/12H04L45/02H04L61/5014Y02D30/00
Inventor 朱琳王光全杨艳松何晓峰王泽林庞冉
Owner CHINA UNITED NETWORK COMM GRP CO LTD
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