@article {18540,
	title = {Lithium: Event-Driven Network Control},
	volume = {GT-CS-12-03},
	year = {2012},
	month = {2012///},
	institution = {Georgia Institute of Technology},
	abstract = {This paper introduces event-driven network control, a network control framework that makes networks easier to manage by automating many tasks that must currently be performed by manually modifying low-level, distributed, and complex device configuration. We identify four policy domains that inherently capture many events: time, user, history, and traffic flow. We then present Lithium, an event-driven network control framework that can implement policies expressed using these domains. Lithium can support policies that automatically react to a wide range of events, from fluctuations in traffic volumes to changes in the time of day. Lithium allows network operators to specify networkwide policies in terms of a high-level, event-driven policy model, as opposed to configuring individual network devices with low-level commands. To show that Lithium is practical, general, and applicable in different types of network scenarios, we have deployed Lithium in both a campus network and a home network and used it to implement more flexible and dynamic network policies. We also perform evaluations to show that Lithium introduces negligible overhead beyond a conventional OpenFlow-based control framework.},
	url = {http://hdl.handle.net/1853/43377},
	author = {Kim,H. and Voellmy,A. and Burnett,S. and Feamster, Nick and Clark,R.}
}
