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dc.contributor.authorNguyen, Thanh Dang
dc.contributor.authorChiesa, Marco
dc.contributor.authorCanini, Marco
dc.date.accessioned2017-12-28T07:32:12Z
dc.date.available2017-12-28T07:32:12Z
dc.date.issued2017-03-06
dc.identifier.urihttp://hdl.handle.net/10754/626480
dc.description.abstractWe present ez-Segway, a decentralized mechanism to consistently and quickly update the network state while preventing forwarding anomalies (loops and black-holes) and avoiding link congestion. In our design, the centralized SDN controller only pre-computes information needed by the switches during the update execution. This information is distributed to the switches, which use partial knowledge and direct message passing to efficiently realize the update. This separation of concerns has the key benefit of improving update performance as the communication and computation bottlenecks at the controller are removed. Our evaluations via network emulations and large-scale simulations demonstrate the efficiency of ez-Segway, which compared to a centralized approach, improves network update times by up to 45% and 57% at the median and the 99th percentile, respectively. A deployment of a system prototype in a real OpenFlow switch and an implementation in P4 demonstrate the feasibility and low overhead of implementing simple network update functionality within switches.
dc.publisherarXiv
dc.relation.urlhttp://arxiv.org/abs/1703.02149v1
dc.relation.urlhttp://arxiv.org/pdf/1703.02149v1
dc.rightsArchived with thanks to arXiv
dc.titleDecentralized Consistent Network Updates in SDN with ez-Segway
dc.typePreprint
dc.contributor.departmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
dc.contributor.departmentComputer Science Program
dc.eprint.versionPre-print
dc.contributor.institutionUniversity of Chicago
dc.contributor.institutionUniversité catholique de Louvain
dc.identifier.arxivid1703.02149
kaust.personCanini, Marco
dc.versionv1
refterms.dateFOA2018-06-14T03:36:10Z


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