Method and device for precisely detecting aging of elephant flow

A large-scale and accurate technology, applied in the field of network communication, can solve the problems of increasing network delay and reducing efficiency, and achieve the effect of improving efficiency

Active Publication Date: 2015-01-14
SUZHOU CENTEC COMM CO LTD
View PDF3 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the bandwidth in the data center is precious, in order to make reasonable and full use of the bandwidth, different Buffer management and QoS policies need to be adopted for large and small flows to prevent the network delay of small flows from increasing due to the influence of large flows. ,Reduce efficiency

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
  • Method and device for precisely detecting aging of elephant flow
  • Method and device for precisely detecting aging of elephant flow
  • Method and device for precisely detecting aging of elephant flow

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0039] The present invention will be described in detail below in conjunction with specific embodiments shown in the accompanying drawings. However, these embodiments do not limit the present invention, and any structural, method, or functional changes made by those skilled in the art according to these embodiments are included in the protection scope of the present invention.

[0040] The flow control of TCP relies on the sliding window mechanism. There are two factors that affect the sliding window, transmission rate and network delay. The transmission speed and network delay are proportional to the size of the sliding window, that is, the larger the transmission rate, the larger the sliding window; the larger the network delay, the larger the sliding window.

[0041] Furthermore, if the network topology is fixed and there is no congestion in the transmission channel, then the network delay is fixed. For example: for real-time data, its throughput is relatively fixed, and t...

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 method and a device for precisely detecting aging of an elephant flow. The method comprises the following steps of: scanning an elephant flow table sequentially within each scanning cycle; recording the numerical value of the meet counter of the current flow byte after a flow byte is scanned each time; and judging whether the numerical value of the aging mechanism cycle of the current flow item is equal to or greater than a preset threshold value of the aging mechanism cycle of the system, if so, judging that the current flow time is aged. According to the method and the device for precisely detecting the aging of the elephant flow, a novel aging mechanism of the elephant flow is designed, the numerical value of the aging mechanism cycle of the current flow item is recorded after scanning each time; whether the current flow item is aged is judged according to the numerical value of the aging mechanism cycle of the current flow item; therefore, the judgment of the aging of the elephant flow cannot be affected by the variation and jitter of the TCP conversation variation in discharge; the method and the device can be accurately used for aging the flow items of the elephant flow when the corresponding TCP conversation is about to end, and the elephant flow-based load balancing efficiency is improved.

Description

technical field [0001] The invention relates to the field of network communication, in particular to a method and device for accurately detecting large flow aging. Background technique [0002] In a traditional data center, the main traffic is transmitted between VMs (virtual servers). According to different application services, most application services are oriented to stateful connections, and transmission control protocols with rate control ( Data Center TCP, DCTCP) technology. Correspondingly, in the data center, the information that participates in the transmission is called a flow. The full English name of the flow is "Flow". A Flow is defined according to the characteristics of the message and the attributes of the interface. The traditional way to define a Flow is: source Mac address; destination Mac address; VLAN; MPLS label; five-tuple (source IP+destination IP+layer 4 header protocol number+layer 4 header source port+layer 4 header port). The "flow" is divided ...

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 Applications(China)
IPC IPC(8): H04L12/26
Inventor 周伟
Owner SUZHOU CENTEC COMM 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