Time-based updates in software defined networks

Tal Mizrahi, Yoram Moses
2013 Proceedings of the second ACM SIGCOMM workshop on Hot topics in software defined networking - HotSDN '13  
Network configuration updates are a routine necessity, and must be performed in a way that minimizes transient effects caused by intermediate states of the network. This challenge is especially critical in Software Defined Networks, where the control plane is managed by a logically centralized controller, and configuration updates occur frequently. In this paper we discuss the tradeoff between maintaining consistency during configuration updates and the update performance. We introduce an
more » ... introduce an approach that uses time to coordinate network configuration and reconfiguration. We show a simple time-based configuration approach called TIMECONF and show that this approach offers significant advantages over existing update approaches at the cost of a brief inconsistency. We also show that time can be used as a tool for simplifying existing update approaches without compromising consistency.
doi:10.1145/2491185.2491214 dblp:conf/sigcomm/MizrahiM13 fatcat:gldkrxlogbfkppkx5bj72kz6mu