Communication method and device for SDN (Software Defined Network) and non-SDN

A communication method and network technology, applied in the field of communication, can solve problems such as difficulty in configuration, increased processing delay, end-to-end processing complexity, and difficulty in changing configuration, so as to achieve the effect of efficient and stable communication
CN107465770AActive Publication Date: 2017-12-12ๅˆ˜ๆ˜ฑ
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Applications(China)
Current Assignee / Owner
ๅˆ˜ๆ˜ฑ
Publication Date
2017-12-12

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Abstract

The invention discloses a communication method for an SDN (Software Defined Network) and a non-SDN. The SDN comprises an SDN controller and SDN forwarding equipment. The method comprises the following steps: receiving a first ARP (Address Resolution Protocol) request forwarded by the SDN forwarding equipment, and judging whether a forwarding entry matched with the first ARP request exists on the SDN controller or not according to the first ARP request; if not, initiating a second ARP request; receiving a second ARP response of the second ARP request, generating a forwarding flow table according to the first ARP request and the second ARP response, and calculating a forwarding path from a source host to a target host; and issuing the forwarding flow table to the SDN forwarding equipment on the forwarding path, and forwarding a data message according to the forwarding flow table by the SDN forwarding equipment. The invention also discloses a communication device for the SDN and the non-SDN. Through implementation of the scheme, configuration in a communication process between the SDN and the non-SDN can become more flexible.
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Description

technical field

[0001] The present invention relates to the communication field, in particular to a communication method and device between an SDN network and a non-SDN network. Background technique

[0002] SDN (Software Defined Network, Software Defined Network) is a new network innovation architecture, one of the core technologies is OpenFlow technology, which realizes flexible control of network traffic by separating the control plane of network equipment from the forwarding plane , providing good technical conditions for the innovation of network applications.

[0003] OpenFlow is a new type of network technology, which realizes the control of network processing behavior by users or programs through flow tables. The OpenFlow network realizes the separation of the data forwarding layer and the control layer. Among them, the OpenFlow switch realizes the forwarding of the data layer, and the SDN controller realizes the function of the control layer. The controller contr...

Claims

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