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.. This work is licensed under a Creative Commons Attribution 4.0 International License.
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**Definition of terms**
Different SDOs and communities use different terminology related to
NFV/Cloud/SDN. This list tries to define an OPNFV terminology,
mapping/translating the OPNFV terms to terminology used in other contexts.
.. glossary::
NFV
Network Function Virtualization
NFVI
Network Function Virtualization Infrastructure; totality of all hardware
and software components which build up the environment in which VNFs are
deployed.
VIM
Virtualized Infrastructure Manager; functional block that is responsible
for controlling and managing the NFVI compute, storage and network
resources, usually within one operator's Infrastructure Domain, e.g.
NFVI Point of Presence (NFVI-PoP).
Virtual Machine (VM)
Virtualized computation environment that behaves very much like a
physical computer/server.
Virtual network
Virtual network routes information among the network interfaces of VM
instances and physical network interfaces, providing the necessary
connectivity.
VNF
Virtualized Network Function. Implementation of an Network Function that
can be deployed on a Network Function Virtualization Infrastructure
(NFVI).
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