Towards Transiently Secure Updates in Asynchronous SDNs

dc.contributor.authorShukla, Apoorv
dc.contributor.authorSchütze, André
dc.contributor.authorLudwig, Arne
dc.contributor.authorDudycz, Szymon
dc.contributor.authorSchmid, Stefan
dc.contributor.authorFeldmann, Anja
dc.date.accessioned2019-12-05T15:21:53Z
dc.date.available2019-12-05T15:21:53Z
dc.date.issued2016-08
dc.description© ACM 2016. This is the author's version of the work. It is posted here for your personal use. Not for redistribution. The definitive Version of Record was published in Proceedings of the 2016 Conference on ACM SIGCOMM 2016 Conference - SIGCOMM ’16, http://dx.doi.org/10.1145/2934872.2959083.en
dc.description.abstractSoftware-Defined Networks (SDNs) promise to overcome the often complex and error-prone operation of tradi- tional computer networks, by enabling programmabil- ity, automation and verifiability. Yet, SDNs also in- troduce new challenges, for example due to the asyn- chronous communication channel between the logically centralized control platform and the switches in the data plane. In particular, the asynchronous commu- nication of network update commands (e.g., OpenFlow FlowMod messages) may lead to transient inconsisten- cies, such as loops or bypassed waypoints (e.g., fire- walls). One approach to ensure transient consistency even in asynchronous environments is to employ smart scheduling algorithms: algorithms which update subsets of switches in each communication round only, where each subset in itself guarantees consistency. In this demo, we show how to change routing policies in a transiently consistent manner. We demonstrate two al- gorithms, namely, Wayup [5] and Peacock [4], which partition the network updates sent from SDN controller towards OpenFlow software switches into multiple rounds as per respective algorithms. Later, the barrier mes- sages are utilized to ensure reliable network updates.en
dc.description.sponsorshipEC/FP7/619609/EU/Unifying Cloud and Carrier Networks/UNIFYen
dc.identifier.isbn978-1-4503-4193-6
dc.identifier.urihttps://depositonce.tu-berlin.de/handle/11303/10449
dc.identifier.urihttp://dx.doi.org/10.14279/depositonce-9401
dc.language.isoenen
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subject.ddc006 Spezielle Computerverfahrende
dc.subject.otherSDNen
dc.subject.otherminineten
dc.subject.othersoftware-defined networken
dc.subject.otherreliabilityen
dc.titleTowards Transiently Secure Updates in Asynchronous SDNsen
dc.typeConference Objecten
dc.type.versionacceptedVersionen
dcterms.bibliographicCitation.doi10.1145/2934872.2959083en
dcterms.bibliographicCitation.originalpublishernameAssociation for Computing Machinery (ACM)en
dcterms.bibliographicCitation.originalpublisherplaceNew York, NYen
dcterms.bibliographicCitation.pageend598en
dcterms.bibliographicCitation.pagestart597en
dcterms.bibliographicCitation.proceedingstitleProceedings of the 2016 ACM SIGCOMM Conference - SIGCOMM'16en
tub.accessrights.dnbfreeen
tub.affiliationFak. 4 Elektrotechnik und Informatik>Inst. Telekommunikationssysteme>FG Internet Network Architectures (INET)de
tub.affiliation.facultyFak. 4 Elektrotechnik und Informatikde
tub.affiliation.groupFG Internet Network Architectures (INET)de
tub.affiliation.instituteInst. Telekommunikationssystemede
tub.publisher.universityorinstitutionTechnische Universität Berlinen
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