1. Network functions virtualization: introductory white paper. http://portal.etsi.org/NFV/NFV_White_Paper.pdf.
2. A. Gember, A. Krishnamurthy, S.St. John, R. Grandl, X. Gao, A. Anand, T. Benson, A. Akella, V. Sekar. Stratos: A Network-Aware Orchestration Layer for Middleboxes in the Cloud. Technical Report arXiv:1305.0209, 2013.
3. A slick control plane for network middleboxes;Anwer,2013
4. Enforcing network-wide policies in the presence of dynamic middlebox actions using FlowTags;Fayazbakhsh,2014
5. Outsourcing Network Function;Gibb,2012