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A communication method, switch, controller and communication system

A communication method and switch technology, applied in the field of communication, can solve the problems of network deployment complexity and cost increase, low scalability, cumbersome configuration, etc.

Active Publication Date: 2017-06-23
RUIJIE NETWORKS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, every time an IP subnet is added to the campus network, corresponding static routes and physical ports must be added in advance on the router, and VLANs or Ethernet switch devices must be added, which increases the complexity and cost of network deployment.
The existing technical solution has the problems that when the network topology changes, the deployment and migration of the network are very inflexible, the configuration is cumbersome, the maintenance is difficult, and the scalability is low.

Method used

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  • A communication method, switch, controller and communication system
  • A communication method, switch, controller and communication system
  • A communication method, switch, controller and communication system

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Embodiment Construction

[0034] The embodiment of the present invention provides a communication method, a switch controller and a communication system. The preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present invention , and are not intended to limit the present invention. And in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0035] figure 1 It is an architectural diagram of a typical application scenario of the communication method provided by the embodiment of the present invention, but it should be understood that the embodiment of the present invention is not limited to figure 1 The architecture shown. The communication system in the embodiment of the present invention includes a software defined network (software define...

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Abstract

The invention relates to a communication method. In the method, after interconnecting hosts of the same network segment and different network segments through an OpenFlow switch and an SDN controller, the OpenFlow switch receives the destination IP address sent by the first host as the IP address of the virtual gateway, After the first PING request message whose destination MAC address is the MAC address of the virtual gateway, the PING request message is sent to the SDN controller, and then the PING reply message issued by the SDN controller is sent to The first host is configured to establish a communication link between the virtual gateway and the first host. In this way, after one configuration, the OpenFlow switch and the SDN controller can be used as the common default gateway of the switches of several network segments to realize the interconnection and communication between the gateways, and further realize the communication between hosts in different network segments. communication.

Description

technical field [0001] The invention relates to the field of communication, in particular to a communication method, a switch, a controller and a communication system for realizing the communication method. Background technique [0002] Gateway (Gateway) is also called Internet connector and protocol converter. A gateway is a network interconnection device that realizes network interconnection above the network layer. The gateway can be used for both WAN interconnection and LAN interconnection. A gateway is a computer system or device that acts as a switch between two systems that use the same or different communication protocols, data formats or languages, or even completely different architectures. The default gateway refers to a default egress gateway of an Internet Protocol (Internet Protocol, IP) subnet in the local area network. If any host in this subnet wants to communicate with hosts in other IP network segments, it will send the data packet to the default gatewa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/937H04L12/46
Inventor 陈启昌黄东远周都
Owner RUIJIE NETWORKS CO LTD
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