Toward an SDN-Enabled NFV Architecture

被引:158
作者
Matias, Jon [1 ]
Garay, Jokin [1 ]
Toledo, Nerea [1 ]
Unzilla, Juanjo [1 ]
Jacob, Eduardo [1 ]
机构
[1] Univ Basque Country UPV EHU, Leioa, Spain
关键词
Authorization - Network function virtualization;
D O I
10.1109/MCOM.2015.7081093
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
This article presents the progressive evolution of NFV from the initial SDN-agnostic initiative to a fully SDN-enabled NFV solution, where SDN is not only used as infrastructure support but also influences how virtual network functions (VNFs) are designed. In the latest approach, when possible, stateless processing in the VNF shifts from the computing element to the networking element. To support these claims, the article presents the implementation of a flow-based network access control solution, with an SDN-enabled VNF built on IEEE 802.1x, which establishes services as sets of flow definitions that are authorized as the result of an end user authentication process. Enforcing the access to the network is done at the network element, while the authentication and authorization state is maintained at the compute element. The application of this proposal allows the performance to be enhanced, while traffic in the control channel is reduced to a minimum. The SDN-enabled NFV approach sets the foundation to increase the areas of application of NFV, in particular in those areas where massive stateless processing of packets is expected.
引用
收藏
页码:187 / 193
页数:7
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