ReversePTP: A software defined networking approach to clock synchronization

Tal Mizrahi, Yoram Moses

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

We introduce ReversePTP, a novel approach to clock synchronization in Software Defined Networks (SDN). ReversePTP is based on the Precision Time Protocol (PTP), but is conceptually reversed; in ReversePTP all nodes (switches) in the network distribute timing information to a single node, the controller, that tracks the state of all the clocks in the network. Hence, all computations and bookkeeping are performed by the controller, whereas the 'dumb' switches are only required to send it their current time periodically. In accordance with the SDN paradigm, the controller is the 'brain', making ReversePTP flexible and programmable from an SDN programmer's perspective.

Original languageEnglish
Title of host publicationHotSDN 2014 - Proceedings of the ACM SIGCOMM 2014 Workshop on Hot Topics in Software Defined Networking
Pages203-204
Number of pages2
DOIs
StatePublished - 2014
Event3rd ACM SIGCOMM 2014 Workshop on Hot Topics in Software Defined Networking, HotSDN 2014 - Chicago, IL, United States
Duration: 22 Aug 201422 Aug 2014

Publication series

NameHotSDN 2014 - Proceedings of the ACM SIGCOMM 2014 Workshop on Hot Topics in Software Defined Networking

Conference

Conference3rd ACM SIGCOMM 2014 Workshop on Hot Topics in Software Defined Networking, HotSDN 2014
Country/TerritoryUnited States
CityChicago, IL
Period22/08/1422/08/14

Keywords

  • IEEE 1588
  • PTP
  • SDN
  • clock synchronization
  • management
  • time

All Science Journal Classification (ASJC) codes

  • Computer Graphics and Computer-Aided Design
  • Computer Vision and Pattern Recognition
  • Human-Computer Interaction
  • Software

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