Details
| Original language | English |
|---|---|
| Title of host publication | Proceedings - 2013 2nd European Workshop on Software Defined Networks, EWSDN 2013 |
| Publisher | IEEE Computer Society |
| Pages | 50-55 |
| Number of pages | 6 |
| ISBN (print) | 9781479924332 |
| Publication status | Published - 2013 |
| Event | 2013 2nd European Workshop on Software Defined Networks, EWSDN 2013 - Berlin, Germany Duration: 10 Oct 2013 → 11 Oct 2013 |
Publication series
| Name | Proceedings - 2013 2nd European Workshop on Software Defined Networks, EWSDN 2013 |
|---|
Abstract
The ability to deploy applications which control network resources using a global view is a major benefit of the SDN paradigm. The SDN dataplane is comprised of a topology of forwarding elements programmed by a centralized controller over a common, well-defined interface. We believe that the heterogeneity of forwarding devices is an inherent property of software defined networks rather than a side effect. Therefore it is vital to design SDN frameworks in manner which explicitly takes variable hardware capabilities into account. In this work we argue that the concurrent operation of switches with diverse capacities for control message processing leads to unpredictable delays in SDN applications. To address this issue, we use a queuing model to characterize the service of a switch's control interface. Furthermore, we outline a measurement based-approach to derive the corresponding parameters. We propose a simple interface extension for controller frameworks which enables operators to configure delay bounds for transmitted control messages. As a result, developers can create SDN applications which exhibit consistent and predicable behavior.
Keywords
- Controller, Heterogeneous switches, Performance evaluation, SDN
ASJC Scopus subject areas
- Computer Science(all)
- Software
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Proceedings - 2013 2nd European Workshop on Software Defined Networks, EWSDN 2013. IEEE Computer Society, 2013. p. 50-55 6680558 (Proceedings - 2013 2nd European Workshop on Software Defined Networks, EWSDN 2013).
Research output: Chapter in book/report/conference proceeding › Conference contribution › Research › peer review
}
TY - GEN
T1 - Taming SDN controllers in heterogeneous hardware environments
AU - Bozakov, Zdravko
AU - Rizk, Amr
PY - 2013
Y1 - 2013
N2 - The ability to deploy applications which control network resources using a global view is a major benefit of the SDN paradigm. The SDN dataplane is comprised of a topology of forwarding elements programmed by a centralized controller over a common, well-defined interface. We believe that the heterogeneity of forwarding devices is an inherent property of software defined networks rather than a side effect. Therefore it is vital to design SDN frameworks in manner which explicitly takes variable hardware capabilities into account. In this work we argue that the concurrent operation of switches with diverse capacities for control message processing leads to unpredictable delays in SDN applications. To address this issue, we use a queuing model to characterize the service of a switch's control interface. Furthermore, we outline a measurement based-approach to derive the corresponding parameters. We propose a simple interface extension for controller frameworks which enables operators to configure delay bounds for transmitted control messages. As a result, developers can create SDN applications which exhibit consistent and predicable behavior.
AB - The ability to deploy applications which control network resources using a global view is a major benefit of the SDN paradigm. The SDN dataplane is comprised of a topology of forwarding elements programmed by a centralized controller over a common, well-defined interface. We believe that the heterogeneity of forwarding devices is an inherent property of software defined networks rather than a side effect. Therefore it is vital to design SDN frameworks in manner which explicitly takes variable hardware capabilities into account. In this work we argue that the concurrent operation of switches with diverse capacities for control message processing leads to unpredictable delays in SDN applications. To address this issue, we use a queuing model to characterize the service of a switch's control interface. Furthermore, we outline a measurement based-approach to derive the corresponding parameters. We propose a simple interface extension for controller frameworks which enables operators to configure delay bounds for transmitted control messages. As a result, developers can create SDN applications which exhibit consistent and predicable behavior.
KW - Controller
KW - Heterogeneous switches
KW - Performance evaluation
KW - SDN
UR - http://www.scopus.com/inward/record.url?scp=84893445896&partnerID=8YFLogxK
U2 - 10.1109/EWSDN.2013.15
DO - 10.1109/EWSDN.2013.15
M3 - Conference contribution
AN - SCOPUS:84893445896
SN - 9781479924332
T3 - Proceedings - 2013 2nd European Workshop on Software Defined Networks, EWSDN 2013
SP - 50
EP - 55
BT - Proceedings - 2013 2nd European Workshop on Software Defined Networks, EWSDN 2013
PB - IEEE Computer Society
T2 - 2013 2nd European Workshop on Software Defined Networks, EWSDN 2013
Y2 - 10 October 2013 through 11 October 2013
ER -