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4 **Definition of terms**
6 Different SDOs and communities use different terminology related to
7 NFV/Cloud/SDN. This list tries to define an OPNFV terminology,
8 mapping/translating the OPNFV terms to terminology used in other contexts.
13 ACT-STBY configuration
14 Failover configuration common in Telco deployments. It enables the
15 operator to use a standby (STBY) instance to take over the functionality
16 of a failed active (ACT) instance.
19 Administrator of the system, e.g. OAM in Telco context.
22 User-side Manager; consumer of the interfaces produced by the VIM; VNFM,
23 NFVO, or Orchestrator in ETSI NFV [ENFV]_ terminology.
26 Evolved Packet Core, the main component of the core network architecture
27 of 3GPP's LTE communication standard.
30 Mobility Management Entity, an entity in the EPC dedicated to mobility
34 Network Function Virtualization
37 Network Function Virtualization Infrastructure; totality of all hardware
38 and software components which build up the environment in which VNFs are
42 Serving/PDN-Gateway, two entities in the EPC dedicated to routing user
43 data packets and providing connectivity from the UE to external packet
44 data networks (PDN), respectively.
47 Actual resources in NFVI; not visible to Consumer.
50 Virtualized Network Function Manager; functional block that is
51 responsible for the lifecycle management of VNF.
54 Network Functions Virtualization Orchestrator; functional block that
55 manages the Network Service (NS) lifecycle and coordinates the
56 management of NS lifecycle, VNF lifecycle (supported by the VNFM) and
57 NFVI resources (supported by the VIM) to ensure an optimized allocation
58 of the necessary resources and connectivity.
61 Virtualized Infrastructure Manager; functional block that is responsible
62 for controlling and managing the NFVI compute, storage and network
63 resources, usually within one operator's Infrastructure Domain, e.g.
64 NFVI Point of Presence (NFVI-PoP).
67 Virtualized computation environment that behaves very much like a
68 physical computer/server.
71 Virtual network routes information among the network interfaces of VM
72 instances and physical network interfaces, providing the necessary
76 A Virtual Machine (VM), a virtual network, or virtualized storage;
77 Offered resources to "Consumer" as result of infrastructure
78 virtualization; visible to Consumer.
81 Virtualized non-volatile storage allocated to a VM.
84 Virtualized Network Function. Implementation of a Network Function that
85 can be deployed on a Network Function Virtualization Infrastructure
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