• Journal of the Korea Society of Computer and Information
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• v.10 no.3 s.35
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• pp.101-110
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• 2005

A virtual locator is a logical locator based on the contents of a physical locator. These contents can be existing member properties in the physical locator. Using virtual locator, we can accomplish personalization which is the technology area associated most often with CRM. In this study, however, what are called virtual locators in many OLAP models would be treated as physical locators for many unique aggregation levels. By using physical locators, we can bring a successful e-business.

• Journal of KIISE
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• v.43 no.12
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• pp.1404-1411
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• 2016

Network virtualization is a technique that abstracts the physical network to provide multiple virtual networks to users. Virtualized network has the advantage to offer flexible services and improve resource utilization. In SDN architecture, network hypervisor serves to virtualize the network through address virtualization, topology virtualization and policy virtualization. Among them, address virtualization refers to the technique that provides an independent address space for each virtual network. Previous work divided the physical address space, and assigned an individual division to each virtual network. Each virtual address is then mapped one-to-one to a physical address. However, this approach requires a lot of flow entries, thus making it disadvantageous. Since SDN switches use TCAM (Ternary Contents Addressable Memory) for the flow table, it is very important to reduce the number of flow entries in the aspect of cost and scalability. In this paper, we propose a LISP based address virtualization, which separates address spaces for the physical and virtual addresses and transmits packet through tunneling, in order to resolve the limitation of the previous studies. By implementing a prototype, we show that the proposed scheme provides better scalability.