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Core network aspects 1

Appendix I

Resource hierarchical model
(This appendix does not form an integral part of this Recommendation.)

Figure I.1 represents the hierarchical model of network virtualization. The physical resource management
creates multiple logical resources which have the same characteristics as physical resources. In addition, it
provides the virtual resource management with logical resources. The virtual resource management
abstracts a logical resource to create a virtual resource. It can also build a virtual resource using multiple
virtual resources. Therefore, a virtual resource has a nested structure. LINP management can build LINPs on
multiple virtual resources which are provided by the virtual resource management. Once an LINP is created,
the LINP management starts to manage its own LINP.

LINP management LINP management
LINP
LINP LINP

Interconnection Interconnection

Virtual resource Virtual resource Virtual resource Virtual resource Virtual resource
management
Resource abstraction
Virtual resource
Virtual resource Virtual resource

Resource abstraction

Physical resource Logical resource Logical resource Logical resource Logical resource
management
Physical resource
Separation Separation
Physical resource Physical resource Physical resource
Y.3012(14)_FI.1

Figure I.1 – Resource hierarchical model

Bibliography

[b-Nakao] Nakao, et al. (2012), Whitepaper – VNode: A Deeply Programmable Network Testbed Through
Network Virtualization https://nvlab.nakao-lab.org/vnode-white.

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