A Method for Layer 2 Switch Content Collaboration Based on Software Defined Networking

A software-defined network and layer-2 switch technology, applied in the network field, can solve the problems of lack of cooperative forwarding layer multi-node storage services, single-node storage capacity, speed and other limited capabilities, and achieve low network communication overhead and high forwarding rate Effect

Active Publication Date: 2020-02-04
北京中科海网科技有限公司
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the storage capacity and speed of a single node are limited, and there is still a lack of cooperative forwarding layer multi-node storage services.

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
  • A Method for Layer 2 Switch Content Collaboration Based on Software Defined Networking
  • A Method for Layer 2 Switch Content Collaboration Based on Software Defined Networking
  • A Method for Layer 2 Switch Content Collaboration Based on Software Defined Networking

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0023] In a specific embodiment, what the present invention adopts is a POF switch, and a POF switch has higher flexibility and programmability than other switches. In a POF switch, which types of data packets in the network are cached and the cache strategy is passed Controller-side programming to achieve.

[0024] In the scenario of this embodiment, it is assumed that the caching policy is that when the local storage capacity value is lower than the threshold K, the POF switch does not store information locally, and adjacent POF switches store data cooperatively. When the local storage capacity value is higher than the threshold K, the POF switch directly stores the data locally.

[0025] In the scenario of this embodiment, it is assumed that the caching strategy is that when the local storage capacity is lower than the threshold K, the data is not stored ...

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 present invention provides a method for coordinating the contents of two-layer switches based on software-defined networks. The method specifically includes: Step 1. The SDN controller periodically sends node discovery frames to each switch port of several switches, and performs flow according to the Ethernet frame type. Table matching, query local storage capacity information, obtain node discovery frame with storage capacity information; Step 2, report the node discovery frame in step 1 to the SDN controller, update and maintain the link table and cache status table in real time, delete Invalid link; step 3, through the analysis of the upper layer protocol, obtain the data packet that needs to store the message load; make a decision according to the local storage status and configuration storage strategy, and judge whether to perform local storage operation; the selected layer 2 switch makes a decision, judges Whether to cache the data packet; step 4, through the analysis of the upper layer protocol, it is determined that it is an Ethernet frame that needs to be read, and the layer 2 switch queries the local storage result to determine whether the cached data needs to be read.

Description

technical field [0001] The invention relates to the field of network technology, in particular to a method for content collaboration of a layer-2 switch based on a software-defined network. Background technique [0002] Software Defined Network (Software Defined Network, SDN) is a new type of network architecture system. Its core technology, OpenFlow, realizes flexible control of network traffic by separating the control plane of network equipment from the data plane. The innovation provides a good platform. In SDN, the programmability of the network is improved by decoupling the forwarding layer and the control layer of the network. [0003] In recent years, Huawei has proposed a new software-defined network forwarding technology in the industry, and named it Protocol Oblivious Forwarding (POF). Defined entirely by the control plane. As an enhancement to the OpenFlow protocol, this technology expands the current application scenarios of OpenFlow and lays the foundation f...

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
Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/08
CPCH04L67/1095H04L67/1097H04L67/563H04L67/5682H04L67/568
Inventor 王劲林朱晓东王玲芳齐卫宁丁力
Owner 北京中科海网科技有限公司
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