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Kanada, Y., Shiraishi, K., and Nakao, A., IEICE SIG on Information Networks, 2012-3-5.
[ 日本語のページ ]
[ Paper PDF file (in Japanese) ]
[ Slides PDF file (in Japanese) ]

Abstract: On the network virtualization platform that consists of multiple virtualization nodes (VNodes), multiple slices (virtual networks) can be operated simultaneously while isolated from other slices. Virtual nodes (node slivers) can be connected freely by using virtual links (link slivers) at up to 10-Gbps, and arbitrary protocol, which is not constrained by Ethernet or IP, can be used on the slice. VNodes implement virtual links on IP networks by using GRE tunnels. In addition, by using a network accommodation equipment (NACE, NC) that translates the packet data format to an external format, slices can be connected to external VLAN networks at up to 10-Gbps. This paper describes how such connections are referenced and defined by slice developers and how they are translated and physical communication is realized.

Introduction to this research theme: Network virtualization

Keywords: Network virtualization platform, Virtualization node, VNode, Slice, Virtual network, Node sliver, Link sliver, Network accommodation

Kanada, Y., Shiraishi, K., and Nakao, A., IARIA Infocomp 2012, 2012-10-24.
[ 日本語のページ ]
[ Paper PDF file ]
[ ThinkMind Paper page ]
[ Slides PDF file ]

Abstract: The architecture for programmable networkvirtualization platforms, i.e., the VNode architecture, has been developed in a project called the Virtualization Node Project. This paper introduces a type of physical node called Network ACcommodation Equipment (NACE) to the VNode architecture. NACE has dual roles in this architecture. The first role is as a network-slice gateway between an external network (Ethernet/VLAN) and a slice (virtual network). NACE can accommodate a data center or another testbed in a slice with high-performance (up to 10 Gbps) data-format conversion. The second role is as a special type of virtualization node that implements intra-slice virtual switch by using Ethernet hardware, which can replace software-based switching using a VM or a network processor. These roles are modeled as a node sliver (virtual node) with a gateway function and a node sliver with a switching function (i.e., a switch node-sliver), and these node slivers are specified by using XML. These functions were evaluated by using two testbeds, and the evaluation results confirm that both functions work correctly and perform well in terms of delay and packet loss.

Introduction to this research theme: Network virtualization

Keywords: network virtualization; virtual network; network accommodation; network-slice gateway; virtual switch; intraslice switching

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