General flow table and method for supporting packet switching and circuit switching in SDN framework

A technology of SDN architecture and packet switching, applied in the direction of data exchange network, electrical components, digital transmission system, etc., to achieve the effect of rapid innovation and differentiated services

Active Publication Date: 2014-03-26
WUHAN POST & TELECOMM RES INST CO LTD
View PDF4 Cites 35 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In view of the limitation that OpenFlow, the southbound interface protocol in the current software-defined network SDN architecture, only supports packet switching, it is urgent to invent a new method that supports packet...

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • General flow table and method for supporting packet switching and circuit switching in SDN framework
  • General flow table and method for supporting packet switching and circuit switching in SDN framework
  • General flow table and method for supporting packet switching and circuit switching in SDN framework

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0029] Such as figure 1As shown, it is a software-defined network SDN layered architecture diagram applied in the present invention, which includes an application layer, a control layer and a data layer, wherein the application layer covers various network services and applications (as shown in the application program 1 - application N). According to different application requirements of the SDN network, the application layer invokes the northbound application programming interface (referred to as the northbound interface) connected to the control layer to implement common network services and applications with different functions on an abstracted network. The control layer is mainly responsible for processing the abstract information of data forwarding plane resources, which can support the summary and maintenance of network topology and status information, and call different forwarding plane resources based on application control. Using the southbound programming interface ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention provides a general flow table and method for supporting packet switching and circuit switching in an SDN framework, and relates to the SDN framework in the information technology. The general flow table comprises a switching type domain, a circuit switching domain and a packet switching domain. The switching type domain comprises four marks of pure circuit switching, pure packet switching, circuit-packet switching and packet-circuit switching. Service flow is forwarded to a network controller of a control layer through a southbound interface. The network controller is used for judging the type and characteristics of the service flow, computing a forwarding path of the service flow and generating the corresponding general flow table. The network controller issues the general flow table to data forwarding equipment of a data layer through the southbound interface, and establishes corresponding forwarding rules in the data forwarding equipment. The service flow completes packet switching and circuit switching in the data forwarding equipment according to the forwarding rules. The general flow table and method can simultaneously support the packet switching technology and the circuit switching technology, and two existing basis independent networks can be replaced by a data and transmission convergent network efficient in operation.

Description

technical field [0001] The invention relates to an SDN architecture in information technology, specifically a general flow table and method for supporting packet switching and circuit switching in the SDN architecture. Background technique [0002] Today, large telecommunication operators and Internet manufacturers respectively own and maintain two distinct basic networks - the layer 3 / 2 IP / Ethernet data network based on packet switching and the layer 1 / 0 TDM / WDM based on circuit switching delivery network. Because the data network and the transmission network are two completely different networks, they have different architectures, switching technologies, control and management mechanisms. In data networks, the control plane and data plane are tightly coupled; while transport networks have traditionally maintained a separation between the data and control planes, it is very challenging to unify the two networks. [0003] The common layered and isolated architecture of the...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): H04L12/749H04L12/773H04L12/937H04L45/741
Inventor 何炜杨铸张新全王之光丁红清
Owner WUHAN POST & TELECOMM RES INST CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap