Next Article in Journal
An ANN-Based Approach for Prediction of Sufficient Seismic Gap between Adjacent Buildings Prone to Earthquake-Induced Pounding
Previous Article in Journal
Analysis of the Impact of Residential Property and Equipment on Building Energy Efficiency and Consumption—A Data Mining Approach
Open AccessArticle

A New Flow Entry Replacement Scheme Considering Traffic Characteristics in Software-Defined Networks

School of Computer Science and Engineering, Kyonggi University, Gyeonggi-do 16227, Korea
*
Author to whom correspondence should be addressed.
Appl. Sci. 2020, 10(10), 3590; https://doi.org/10.3390/app10103590
Received: 17 April 2020 / Revised: 13 May 2020 / Accepted: 19 May 2020 / Published: 22 May 2020
The Software Defined Network (SDN) decouples control and data planes of the existing network architecture and a controller carries out centralized management and control of the network. This provides flexibility for the networks and enables efficient operation, depending on their condition. However, when the performance of switches comprising the SDN varies, any switches with low performance can cause flow table overflow and subsequent bottleneck with overhead concentrating in the controller. Besides, packet processing can be delayed, declining user QoS. The paper proposes a flow entry replacement scheme that takes into account the flow features to address the issue. The proposed Short Flow First (SFF) scheme discriminates the flow features based on the matching period of flow entry and determines a subject of the flow entry replacement with the features. For evaluation, the paper built the SDN environment using the Mininet emulator and compared the performance of the proposed SFF scheme with the representative flow entry replacement schemes. According to the results, the proposed scheme showed a good performance in the flow entry miss rate and packet delay due to failure of matching the flow entry. View Full-Text
Keywords: flow entry replacement; SDN; switch; controller; multimedia; network flow entry replacement; SDN; switch; controller; multimedia; network
Show Figures

Graphical abstract

MDPI and ACS Style

Kim, N.; Kim, D.; Jang, Y.; Lee, C.; Lee, B.-D. A New Flow Entry Replacement Scheme Considering Traffic Characteristics in Software-Defined Networks. Appl. Sci. 2020, 10, 3590.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Search more from Scilit
 
Search
Back to TopTop