Optimization of low-efficiency traffic in OpenFlow Software Defined Networks

Author

Saldana, Jose ; Pascual, Fernando ; de Hoz, David ; Fernandez-Navajas, Julian ; Ruiz-Mas, Jose ; Lopez, Diego R. ; Florez, David ; Castell, Juan A. ; Nunez, Marcos

Author_Institution

I3A, Univ. of Zaragoza, Zaragoza, Spain

fYear

2014

fDate

6-10 July 2014

Firstpage

550

Lastpage

555

Abstract

This paper proposes a method for optimizing bandwidth usage in Software Defined Networks (SDNs) based on OpenFlow. Flows of small packets presenting a high overhead, as the ones generated by emerging services, can be identified by the SDN controller, in order to remove header fields that are common to any packet in the flow, only during their way through the SDN. At the same time, several packets can be multiplexed together in the same frame, thus reducing the number of sent frames. Four kinds of small-packet traffic flows are considered (VoIP, UDP and TCP-based online games, and ACKs from TCP flows). Both IPv4 and IPv6 are tested, and significant bandwidth savings (up to 68 % for IPv4 and 78 % for IPv6) can be obtained for the considered kinds of traffic.

Keywords

Internet telephony; telecommunication computing; transport protocols; ACK; IPv4; IPv6; OpenFlow software defined networks; SDN; TCP flow; TCP-based online games; UDP; VoIP; bandwidth savings; bandwidth usage optimization; low-efficiency traffic optimization; small-packet traffic flows; transport control protocol; user defined protocol; voice-over-Internet protocol; Decision support systems; IP networks; Software Defined Networks; compression; multiplexing; traffic optimization;

fLanguage

English

Publisher

ieee

Conference_Titel

Performance Evaluation of Computer and Telecommunication Systems (SPECTS 2014), International Symposium on

Conference_Location

Monterey, CA

Type

conf

DOI

10.1109/SPECTS.2014.6879992

Filename

6879992