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Network Virtualization 101: NVE, Overlay & SDN

Note: Material furnished herein are copyright protected. © 2015: Dhiman Deb Chowdhury. All Rights Reserved. In previous article, I have discussed about historical perspective of system virtualization ( http://dhimanchowdhury.blogspot.com/2015/07/network-virtualization-101-prelude.html ): how the need to integrate IBM’s disparate systems to share resource and enable multitasking led to the development of system level virtualization. If you have not read that article, I suggest that you do: it will help you understand the development in network virtualization and benefits thereof. Today, system level virtualization advanced far beyond the conception embraced in IBM’s CP/40 encouraging development works in network and storage level virtualization. However, primary goal remains the same: share resources and enable dynamic capabilities. For network virtualization, complexities marred wide spread deployment of NVE (Network Virtualization Environment) especially in en...

Network Virtualization 101: The Prelude

Share on LinkedIn Share on Facebook Share on Google Plus Note: The material furnish in this section is copyright protected and in parts taken from my Cloud Technology Handbook (writing in progress). Being a technology professional in the networking industry, I have witnessed triumph and demise of many technologies and the entities that pioneered those technologies. Industrial decline is a subject of academic research is not something that I would like to delve further here. That said, it is important to note, knowing about origin and analyzing potentials and pitfalls are better ways to prepare yourself and the entity for which you direct the strategy. In this series, I will explore network virtualization technologies from its origin to the future potentials and everything in between. This series of articles are intended to educate the readership from basic to advance level of network configurations in a virtualized environment. Interested readership...

Network Virtualization 101: The NV

In previous article, I have discussed about historical perspective of Network virtualization ( http://www.dhimanchowdhury.blogspot.com/2015/07/network-virtualization-101-nve-overlay.html ): how the need to share resources and induce flexibility and programmability in network environment led to the series of research undertakings, e.g. MBone project (Almeroth, C.K., 2000) – an experimental backbone project for carrying IP “multicast” that was developed in 1994. If you have not read that article, I suggest that you do: it will help you understand the development in network virtualization and benefits thereof. Figure 1 . Timeline of Network Virtualization. This article is third in the “Network Virtualization 101” series. In the previous article, I presented a review of network programmability works in four stages rather than in chronological order: three stages were discussed in earlier section and the fourth “network v...

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