Abstract
Large-scale network testbeds raise the problem of the ex- haustion of IPv4 address space. Before the IPv6 is widely deployed, mul- tiplexing IPv4 address for guest slivers is necessary. NAT is one of the typical ways for the multiplexing. Violating the end-to-end feature of the Internet, the NAT approach has well-known drawbacks in performance scalability and in supporting diverse services and applications. In this paper, we propose a method to share the host’s global IP address for all the guest slivers on a node and isolate their network usage in port-space. The idea is successfully implemented with Open vSwitch and deployed in the CoreLab platform. Benchmark result shows that the proposed solution is superior to NAT technique significantly.
This work has been partly supported by Ministry of Internal Affairs and Communi- cations (MIC) of the Japanese Government.
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Du, P., Chen, M., Nakao, A. (2011). Port-Space Isolation for Multiplexing a Single IP Address Through Open vSwitch. In: Magedanz, T., Gavras, A., Thanh, N.H., Chase, J.S. (eds) Testbeds and Research Infrastructures. Development of Networks and Communities. TridentCom 2010. Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering, vol 46. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-17851-1_8
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DOI: https://doi.org/10.1007/978-3-642-17851-1_8
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