1. Kompella K. New take on SDN: does MPLS make sense in cloud data centers? SDN Cen- tral, December 11, 2012. Retrieved from: http://www.sdncentral.com/use-cases/does-mpls-make-sense-in-cloud-data-centers/2012/12/.
2. Mahalingam M, Dutt D, Duda K, Agarwal P, Kreeger L, Sridhar T, et al. VXLAN: a framework for overlaying virtualized layer 2 networks over layer 3 networks. Internet Draft, Internet Engineering Task Force, August 26, 2011.
3. Sridharan M, et al. NVGRE: network virtualization using generic routing encapsulation. Internet Draft, Internet Engineering Task Force, September 2011.
4. Davie B, Gross J. STT: a stateless transport tunneling protocol for network virtualization (STT). Internet Draft, Internet Engineering Task Force, March 2012.
5. Farinacci D, Li T, Hanks S, D M, Traina P. Generic Routing Encapsulation (GRE). RFC 2784, Internet Engineering Task Force, March 2000.