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Tunnel setup method and tunnel setup device

Active Publication Date: 2014-12-24
NEW H3C TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

It can be seen that the SDN controller does not really fully control the network, and OpenFlow switching devices still need to deploy traditional network protocols by themselves, which does not fundamentally save network resources

Method used

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  • Tunnel setup method and tunnel setup device
  • Tunnel setup method and tunnel setup device
  • Tunnel setup method and tunnel setup device

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Embodiment Construction

[0075] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0076] In this embodiment, the SDN controller actively sends tunnel information to establish a tunnel in the SDN network, and data forwarding no longer depends on deploying traditional IGP / MPLS / VPN services on the OpenFlow switch, thereby strengthening the SDN controller's support for the SDN network. control function.

[0077] figure 1 It is a flowchart of a method for establishing a tunnel at the SDN controller side in the embodiment of the present invention.

[0078] Such as figure 1 As shown, the method includes the following steps performed by the SDN controller in the SDN architecture:

[0079] Step 101: Receive its own IP address reported by each OpenFlow switch.

[0080] Here, an IP address (such as 1.1.1.1) can be assigned to each OpenFlow switch in t...

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Abstract

The invention provides a tunnel setup method and a tunnel setup device. The tunnel setup method includes steps executed by an SDN (software defined network) controller in SDN architecture. The steps include: receiving an IP (internet protocol) address reported by each OpenFlow switch; respectively issuing a first flow table with an assigned matching item being an outlet interface of the IP address of a target OpenFlow switch; issuing tunnel information used for setup of GRE (general route encapsulation) tunnels among edge switch equipment to the OpenFlow switches serving as the edge switch equipment, and enabling the edge switch equipment to set up a tunnel forwarding table on the basis of the tunnel information. A function of controlling the SDN by the SDN controller is enhanced while configuration demands on the OpenFlow switches are lowered, and network resources are saved.

Description

technical field [0001] The present invention belongs to the technical field of OpenFlow in a software defined network (Software Defined Network, SDN) architecture, in particular to a method and device for establishing a tunnel. Background technique [0002] The SDN architecture uses OpenFlow technology to separate the control plane and data plane of network devices, thereby realizing flexible control of network traffic. Correspondingly, the SDN architecture includes an SDN controller and an OpenFlow switching device, wherein: the SDN controller and the OpenFlow switching device communicate through an OpenFlow channel, and the SDN controller generates a flow table according to user configuration or a dynamically running protocol and sends it to An OpenFlow switching device. The OpenFlow switching device processes packets according to the flow table issued by the SDN controller. In actual networking, the OpenFlow switching device at the edge of the SDN network can be called a...

Claims

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Application Information

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IPC IPC(8): H04L12/46H04L12/741H04L45/74
Inventor 宋小恒
Owner NEW H3C TECH CO LTD
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