期刊
IEEE-ACM TRANSACTIONS ON NETWORKING
卷 28, 期 1, 页码 275-288出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TNET.2019.2958762
关键词
SDN; migration; OpenFlow; switch design
类别
资金
- UK Engineering and Physical Sciences Research Council (EPSRC) [EP/N033957/1, EP/P004024/1]
- European Cooperation in Science and Technology (COST) Action [CA 15127]
- National Research, Development and Innovation Office (NKFIH) under the research and development project in Hungarian-Korean [2018-2.1.17-TET-KR-2018-00012, FK 128233, PD 121201, FK_18, PD_16]
- EPSRC [EP/P004024/1, EP/N033957/1] Funding Source: UKRI
Software-Defined Networking (SDN) offers a new way to operate, manage, and deploy communication networks and to overcome many long-standing problems of legacy networking. However, widespread SDN adoption has not occurred yet due to the lack of a viable incremental deployment path and the relatively immature present state of SDN-capable devices on the market. While continuously evolving software switches may alleviate the operational issues of commercial hardware-based SDN offerings, namely lagging standards-compliance, performance regressions, and poor scaling, they fail to match the cost-efficiency and port density. In this paper, we propose HARMLESS, a new SDN switch design that seamlessly adds SDN capability to legacy network gear, by emulating the OpenFlow switch OS in a separate software switch component. This way, HARMLESS enables a quick and easy leap into SDN, combining the rapid innovation and upgrade cycles of software switches with the port density and cost-efficiency of hardware-based appliances into a fully dataplane-transparent and vendor-neutral solution. HARMLESS incurs an order of magnitude smaller initial expenditure for an SDN deployment than existing turnkey vendor SDN solutions while, at the same time, yields matching, or even better, data plane performance for smaller enterprises.
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