On the Necessity of Time-based Updates in {SDN}
Tal Mizrahi, Yoram Moses · 2014
The usage of accurate time to schedule updates in software defined networks was recently proposed in [1]; time can be a powerful tool for applying network updates in a relatively simple manner and with a very brief period of inconsistency during the update. In the current paper we introduce the flow-swapping scenario, which demonstrates the necessity of time-based updates. We show that while traditional update approaches result in temporary packet loss, the time-based approach