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Publications (10 of 13) Show all publications
Bhamare, D., Kassler, A., Vestin, J., Khoshkholghi, M. A. & Taheri, J. (2019). IntOpt: In-Band Network Telemetry Optimization for NFV Service Chain Monitoring. In: 2019 IEEE International Conference on Communications (ICC) Próceedings: . Paper presented at IEEE ICC 2019: IEEE International Conference on Communications 2019 Shanghai, China 20-24 May.
Open this publication in new window or tab >>IntOpt: In-Band Network Telemetry Optimization for NFV Service Chain Monitoring
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2019 (English)In: 2019 IEEE International Conference on Communications (ICC) Próceedings, 2019Conference paper, Published paper (Refereed)
Abstract [en]

Managing and scaling virtual network function(VNF) service chains require the collection and analysis ofnetwork statistics and states in real time. Existing networkfunction virtualization (NFV) monitoring frameworks either donot have the capabilities to express the range of telemetryitems needed to perform management or do not scale tolarge traffic volumes and rates. We present IntOpt, a scalableand expressive telemetry system designed for flexible VNFservice chain network monitoring using active probing. IntOptallows to specify monitoring requirements for individual servicechain, which are mapped to telemetry item collection jobsthat fetch the required telemetry items from P4 (programmingprotocol-independent packet processors) programmable dataplaneelements. In our approach, the SDN controller creates theminimal number of monitoring flows to monitor the deployedservice chains as per their telemetry demands in the network.We propose a simulated annealing based random greedy metaheuristic(SARG) to minimize the overhead due to activeprobing and collection of telemetry items. Using P4-FPGA, webenchmark the overhead for telemetry collection and compareour simulated annealing based approach with a na¨ıve approachwhile optimally deploying telemetry collection probes. Ournumerical evaluation shows that the proposed approach canreduce the monitoring overhead by 39% and the total delays by57%. Such optimization may as well enable existing expressivemonitoring frameworks to scale for larger real-time networks.

Keywords
In-band Network Telemetry, Monitoring, P4, Service Function Chain, Software Defined Networks
National Category
Computer Sciences
Research subject
Computer Science
Identifiers
urn:nbn:se:kau:diva-74631 (URN)10.1109/ICC.2019.8761722 (DOI)978-1-5386-8089-6 (ISBN)978-1-5386-8088-9 (ISBN)
Conference
IEEE ICC 2019: IEEE International Conference on Communications 2019 Shanghai, China 20-24 May
Projects
HITS, 4707
Funder
Knowledge Foundation
Available from: 2019-09-04 Created: 2019-09-04 Last updated: 2019-09-19Bibliographically approved
Vestin, J., Kassler, A. & Akerberg, J. (2018). FastReact: In-Network Control And Caching For Industrial Control Networks Using Programmable Data Planes. In: 2018 IEEE 23RD INTERNATIONAL CONFERENCE ON EMERGING TECHNOLOGIES AND FACTORY AUTOMATION (ETFA): . Paper presented at 23rd IEEE International Conference on Emerging Technologies and Factory Automation (ETFA), SEP 04-07, 2018, Politecnico Torino, Torino, ITALY (pp. 219-226).
Open this publication in new window or tab >>FastReact: In-Network Control And Caching For Industrial Control Networks Using Programmable Data Planes
2018 (English)In: 2018 IEEE 23RD INTERNATIONAL CONFERENCE ON EMERGING TECHNOLOGIES AND FACTORY AUTOMATION (ETFA), 2018, p. 219-226Conference paper, Published paper (Refereed)
Abstract [en]

Providing network reliability as well as low and predictable latency is important especially for Industrial Automation and Control Networks. However, diagnosing link status from the control plane has high latency and overhead. In addition, the communication with the industrial controller may impose additional network latency. We present FastReact - a system enabling In-Network monitoring, control and caching for Industrial Automation and Control Networks. FastReact outsources simple monitoring and control actions to evolving programmable data planes using the P4 language. As instructed by the Industrial Controller through a Northbound API, the SDN controller composes control actions using Boolean Logic which are then installed in the data plane. The data plane parses and caches sensor values and performs simple calculations on them which are connected to fast control actions that are executed locally. For resiliency, FastReact monitors liveness and response of sensors/actuators and performs a fast local link repair in the data plane if a link failure is detected. Our testbed measurement show that FastReact can reduce the sensor/actuator delay while being resilient against several failure events.

Series
IEEE International Conference on Emerging Technologies and Factory Automation-ETFA, ISSN 1946-0740
National Category
Computer Sciences
Research subject
Computer Science
Identifiers
urn:nbn:se:kau:diva-70292 (URN)000449334500026 ()978-1-5386-7108-5 (ISBN)
Conference
23rd IEEE International Conference on Emerging Technologies and Factory Automation (ETFA), SEP 04-07, 2018, Politecnico Torino, Torino, ITALY
Available from: 2018-11-23 Created: 2018-11-23 Last updated: 2019-01-31Bibliographically approved
Vestin, J. (2018). SDN-Enabled Resiliency in Computer Networks. (Licentiate dissertation). Karlstad: Karlstads universitet
Open this publication in new window or tab >>SDN-Enabled Resiliency in Computer Networks
2018 (English)Licentiate thesis, comprehensive summary (Other academic)
Abstract [en]

In computer networking, failures, such as breaking equipment, cable cuts, power failures and human errors continuously cause communication interruptions. Such failures may result in dissatisfied customers, loss of product reputation, violation of SLAs and even critical failures in industrial systems. SDN, which logically centralizes the control plane, is an emerging technology in computer networking. The global view provided by the SDN controller can be used to reconfigure the network in case of a link failure. However, this reconfiguration may take too long for high availability networks. With the introduction of proactive link repair, backup paths are preinstalled in the forwarding devices, reducing path recovery time.

This thesis addresses the usage of SDN to provide resiliency in high availability networks. First, we consider how SDN can be used for increasing the reliability of ICNs. Second, we investigate how similar technologies could be applied to deal with fast channel attenuation and resulting outage in mmWave backhaul networks. Finally, we look at CloudMAC-based Wireless LAN, and how SDN-enabled QoS improvements could improve connection reliability.

Abstract [en]

In computer networking, failures, such as breaking equipment, cable cuts, power failures and human errors continuously cause communication interruptions. Such failures may result in dissatisfied customers, loss of product reputation, violation of Service Level Agreements and even critical failures in industrial systems. Recently, the concept of Software Defined Networking (SDN) was introduced. SDN opens up and centralizes the control plane, which allows designing networks more resilient to failures.

In this thesis, we address the usage of SDN in order to provide resiliency in high availability networks. First, we consider how SDN enabled, proactive failure recovery can be used to provide the reliability required in Industrial Control Networks (ICNs). We also investigate how the same approach could be applied to mmWave backhaul networks to cope with fast channel attenuation and the resulting outage. Through extensive experiments, we can demonstrate an increase in reliability for both ICNs and mmWave backhaul networks. Second, we look at CloudMAC-based Wireless LAN, and how SDN-enabled traffic control algorithms could improve connection reliability. Through our experiments we can show that both discriminatory and non-discriminatory algorithms significantly increase the connection reliability. In combination, these results serve to strengthen the image of SDN as a provider of resilient, high-availability networks.

Place, publisher, year, edition, pages
Karlstad: Karlstads universitet, 2018. p. 24
Series
Karlstad University Studies, ISSN 1403-8099 ; 2018:17
Keywords
networking, sdn, openflow, resiliency, icn, mmwave, 5g, wlan
National Category
Computer Sciences
Research subject
Computer Science
Identifiers
urn:nbn:se:kau:diva-66992 (URN)978-91-7063-848-0 (ISBN)978-91-7063-943-2 (ISBN)
Presentation
2018-05-11, 1B 309 Sjöström, Universitetsgatan 2, Karlstad, 10:15 (English)
Opponent
Supervisors
Available from: 2018-04-20 Created: 2018-04-12 Last updated: 2018-04-30Bibliographically approved
Vestin, J. & Kassler, A. (2017). Low frequency assist for mmWave backhaul - the case for SDN resiliency mechanisms. In: Communications Workshops (ICC Workshops), 2017 IEEE International Conference on: . Paper presented at IEEE International Conference on Communications Workshops (ICC Workshops), 21-25 May 2017. Paris, France. IEEE
Open this publication in new window or tab >>Low frequency assist for mmWave backhaul - the case for SDN resiliency mechanisms
2017 (English)In: Communications Workshops (ICC Workshops), 2017 IEEE International Conference on, IEEE, 2017Conference paper, Published paper (Refereed)
Abstract [en]

In 5G, network densification is a major concern for operators. When a massive amount of small cells are deployed, the backhaul capacity is crucial and researchers are exploring the use of high frequency bands such as 28, 60 or even 140 GHz because of the large portion of spectrum that is available. Unfortunately, such mmWave links frequently change their capacity due to blocking and weather phenomena which makes it challenging to design stable multihop backhaul networks using those frequency bands. In this paper, we investigate the use of Software Defined Networking (SDN) for the operation and control of wireless backhaul networks. We explore different ways how SDN resiliency mechanisms such as FastFailover Groups can be used to mitigate disruptive connectivity in the multihop operation due to mmWave links frequently failing. We also demonstrate a clear benefit for using low frequency assist mode, where the small cell has an additional stable LTE uplink to the eNB that is used should the mmWave backhaul links fail. Our experiments using a network emulator show that such SDN based local repair mechanisms can significantly reduce the packet loss rate inside the mmWave backhaul mesh, which can be further reduced with an LTE assisted Failover.

Place, publisher, year, edition, pages
IEEE, 2017
Series
IEEE Xplore, ISSN 2474-9133
Keywords
5G mobile communication, Long Term Evolution, software defined networking, telecommunication network reliability
National Category
Computer Sciences
Research subject
Computer Science
Identifiers
urn:nbn:se:kau:diva-65609 (URN)10.1109/ICCW.2017.7962658 (DOI)000464321500035 ()978-1-5090-1526-9 (ISBN)978-1-5090-1525-2 (ISBN)
Conference
IEEE International Conference on Communications Workshops (ICC Workshops), 21-25 May 2017. Paris, France
Available from: 2018-01-15 Created: 2018-01-15 Last updated: 2019-08-02Bibliographically approved
Vestin, J. & Kassler, A. (2017). SDN enabled resiliency in LTE assisted small cell mmWave backhaul networks. In: Crespi, N Manzalini, A Secci (Ed.), Proceedings of the 2017 20th conference on innovations in clouds, internet and networks (ICIN): . Paper presented at The 20th Conference on Innovations in Clouds, Internet and Networks (ICIN), 7-9 March 2017. Paris, France (pp. 199-202). IEEE
Open this publication in new window or tab >>SDN enabled resiliency in LTE assisted small cell mmWave backhaul networks
2017 (English)In: Proceedings of the 2017 20th conference on innovations in clouds, internet and networks (ICIN) / [ed] Crespi, N Manzalini, A Secci, IEEE, 2017, p. 199-202Conference paper, Published paper (Refereed)
Abstract [en]

As mobile data usage increases dramatically, new architectures and technologies for wireless communication are required. Next generation of mobile networks are expected to be augmented by a massive amount of small cells that will be densely deployed. In order to connect the small cells, new high capacity wireless backhauling technologies are required. A promising solution is to use frequencies in the mmWave band, which allows for much greater capacity due to the massive amount of free spectrum. However, the special characteristics of the mmWave bands such as high path loss and atmospheric absorption lead to unstable links. In this paper, we investigate using Software Defined Networking principles for the operation and control of wireless backhaul networks. We demonstrate how SDN resiliency mechanisms can be used to mitigate disruptive connectivity due to mmWave links frequently failing. For assisting the small cell backhauling, we propose to also use the LTE uplinks of the small cells as backup links, should the mmWave mesh forwarding link break. Our experiments using a network emulator show that using SDN-based local repair mechanisms can significantly reduce the packet loss rate inside the mmWave backhaul mesh, which can be further reduced with an LTE assisted Failover.

Place, publisher, year, edition, pages
IEEE, 2017
Series
Conference on Innovations in Clouds Internet and Networks, ISSN 2472-8144
Keywords
cellular radio, Long Term Evolution, millimetre waves, next generation networks, radio links, software defined networking
National Category
Computer Sciences
Research subject
Computer Science
Identifiers
urn:nbn:se:kau:diva-65608 (URN)10.1109/ICIN.2017.7899411 (DOI)000403310200030 ()978-1-5090-3672-1 (ISBN)
Conference
The 20th Conference on Innovations in Clouds, Internet and Networks (ICIN), 7-9 March 2017. Paris, France
Available from: 2018-01-15 Created: 2018-01-15 Last updated: 2018-04-20Bibliographically approved
Vestin, J. & Kassler, A. (2016). Resilient SDN based Small Cell Backhaul Networks using mm Wave Bands. In: World of Wireless, Mobile and Multimedia Networks (WoWMoM), 2016 IEEE 17th International Symposium on A: . Paper presented at IEEE WoWMoM 2016 - Seventeenth International Symposium on a World of Wireless, Mobile and Multimedia Networks, June 21-24, 2016, Coimbra, Portugal. IEEE Communications Society
Open this publication in new window or tab >>Resilient SDN based Small Cell Backhaul Networks using mm Wave Bands
2016 (English)In: World of Wireless, Mobile and Multimedia Networks (WoWMoM), 2016 IEEE 17th International Symposium on A, IEEE Communications Society, 2016Conference paper, Published paper (Refereed)
Place, publisher, year, edition, pages
IEEE Communications Society, 2016
National Category
Computer Sciences
Research subject
Computer Science
Identifiers
urn:nbn:se:kau:diva-41736 (URN)10.1109/WoWMoM.2016.7523543 (DOI)000392273900048 ()
Conference
IEEE WoWMoM 2016 - Seventeenth International Symposium on a World of Wireless, Mobile and Multimedia Networks, June 21-24, 2016, Coimbra, Portugal
Funder
Knowledge Foundation, SOCRA
Available from: 2016-04-20 Created: 2016-04-20 Last updated: 2018-01-10Bibliographically approved
Vestin, J. & Kassler, A. (2015). QoS Enabled WiFi MAC Layer Processing as an Example of a NFV Service. In: Network Softwarization (NetSoft), 2015 1st IEEE Conference on: . Paper presented at 1st IEEE Conference on Network Softwarization (NetSoft), 13-17 April 2015, London (pp. 1-9). IEEE conference proceedings
Open this publication in new window or tab >>QoS Enabled WiFi MAC Layer Processing as an Example of a NFV Service
2015 (English)In: Network Softwarization (NetSoft), 2015 1st IEEE Conference on, IEEE conference proceedings, 2015, p. 1-9Conference paper, Published paper (Refereed)
Place, publisher, year, edition, pages
IEEE conference proceedings, 2015
National Category
Computer Sciences
Research subject
Computer Science
Identifiers
urn:nbn:se:kau:diva-38735 (URN)10.1109/NETSOFT.2015.7116164 (DOI)000380562800045 ()
Conference
1st IEEE Conference on Network Softwarization (NetSoft), 13-17 April 2015, London
Available from: 2015-11-27 Created: 2015-11-27 Last updated: 2018-04-12Bibliographically approved
Vestin, J. & Kassler, A. (2015). QoS Management for WiFi MAC layer processing in the Cloud: Demo Description. In: Proceedings of the 11th ACM Symposium on QoS and Security for Wireless and Mobile Networks: . Paper presented at 11th ACM Symposium on QoS and Security for Wireless and Mobile Networks, Cancun, Mexico, October 2015 (pp. 173-174). Association for Computing Machinery (ACM)
Open this publication in new window or tab >>QoS Management for WiFi MAC layer processing in the Cloud: Demo Description
2015 (English)In: Proceedings of the 11th ACM Symposium on QoS and Security for Wireless and Mobile Networks, Association for Computing Machinery (ACM), 2015, p. 173-174Conference paper, Published paper (Refereed)
Abstract [en]

We present a demo of Quality of Service Management for CloudMAC, which combines SDN with NFV for processing WLAN MAC layer management frames in the Cloud. With CloudMAC, enterprise WLANs can be managed in the cloud which enables simple support for authentication, authorization and accounting, or mobility management. With CloudMAC, clients are associated with Virtual Machines and mobility management is simplified by updating OpenFlow forwarding rules. This enables seamless mobility. While CloudMAC works with standard WLAN clients, CloudMAC APs are very lightweight. In this demo, we show how we can manage different QoS classes in SDN enabled networks which allows a flexible WLAN MAC frame prioritisation. As an example, we implement 802.11ae based WLAN MAC management frame priorization in both the SDN network and the CloudMAC lightweight APs.

Place, publisher, year, edition, pages
Association for Computing Machinery (ACM), 2015
National Category
Computer Sciences
Research subject
Computer Science
Identifiers
urn:nbn:se:kau:diva-38747 (URN)10.1145/2815317.2815343 (DOI)978-1-4503-3757-1 (ISBN)
Conference
11th ACM Symposium on QoS and Security for Wireless and Mobile Networks, Cancun, Mexico, October 2015
Funder
Knowledge Foundation, READY
Available from: 2015-11-27 Created: 2015-11-27 Last updated: 2018-10-12Bibliographically approved
Vestin, J., Kassler, A. & Akerberg, J. (2015). Resilient Software Defined Networking for Industrial Control Networks. In: 2015 10th International Conference on Information, Communications and Signal Processing (ICICS): . Paper presented at ICICS 2015 - The 10th International Conference on Information, Communications and Signal Processing, December 2-4 2015, Singapore.. IEEE conference proceedings
Open this publication in new window or tab >>Resilient Software Defined Networking for Industrial Control Networks
2015 (English)In: 2015 10th International Conference on Information, Communications and Signal Processing (ICICS), IEEE conference proceedings, 2015Conference paper, Published paper (Refereed)
Abstract [en]

Software Defined Networking (SDN) is currently a hot topic in the area of Datacenter Networking or Enterprise Networks as it has the promise to radically simplify network management and operation. However, it has not been considered so far as a promising candidate for Industrial Control Networks mainly because of the deterministic performance requirements and the dedicated design of those networks to fulfil strict performance guarantees. In this paper, we propose a resilient SDN based architecture for Industrial Control Networks and show that by combining several SDN based fast failover technologies using per-link Bidirectional Forwarding Detection (BFD), preconfigured primary and backup paths and flexible packet duplication orchestrated by an SDN controller, we can reduce significantly the control latency and provide more stringent performance guarantees even under lossy and failing links.

Place, publisher, year, edition, pages
IEEE conference proceedings, 2015
National Category
Computer Sciences
Research subject
Computer Science
Identifiers
urn:nbn:se:kau:diva-38748 (URN)10.1109/ICICS.2015.7459981 (DOI)000381754800168 ()978-1-4673-7216-9 (ISBN)
Conference
ICICS 2015 - The 10th International Conference on Information, Communications and Signal Processing, December 2-4 2015, Singapore.
Funder
Knowledge Foundation, READY
Available from: 2015-11-27 Created: 2015-11-27 Last updated: 2018-04-12Bibliographically approved
Dely, P., Vestin, J. & Kassler, A. (2013). CloudMAC - Using OpenFlow to Process 802.11 MAC Frames in the Cloud. PIK - Praxis der Informationsverarbeitung und Kommunikation, 36(1), 53
Open this publication in new window or tab >>CloudMAC - Using OpenFlow to Process 802.11 MAC Frames in the Cloud
2013 (English)In: PIK - Praxis der Informationsverarbeitung und Kommunikation, ISSN 0930-5157, Vol. 36, no 1, p. 53-Article in journal (Refereed) Published
Place, publisher, year, edition, pages
Walter de Gruyter, 2013
National Category
Computer Sciences
Research subject
Computer Science
Identifiers
urn:nbn:se:kau:diva-33220 (URN)10.1515/pik-2012-0068 (DOI)
Available from: 2014-07-08 Created: 2014-07-08 Last updated: 2018-01-11Bibliographically approved
Organisations
Identifiers
ORCID iD: ORCID iD iconorcid.org/0000-0001-7358-8675

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