Terminology and Acronyms
The following table provides information about the acronyms and the terminology used in the document.
Table 1-1 Terminology/Acronyms
| Field | Description |
| 3GPP | 3rd Generation Partnership Project |
| 5G-AN | 5G Access Network |
| 5GC | 5G Core Network |
| 5G System | 3GPP system consisting of 5G Access Network (AN), 5G Core Network and UE |
| AMF | Access and Mobility Management Function |
| API Gateway | Application that sits in front of an application programming interface ( API ) and acts as a single point of entry for a defined group of micro services. |
| CNE | Cloud Native Environment |
| Dimension | Dimension is a tag of Metric. For Example,
"ocnrf_nfRegister_rx_requests_total {{ OriginatorNfType }} {{NrfLevel }}
{{NfInstanceId }}"
In the example above, OriginatorNfType, NrfLevel, and NfInstanceId are dimensions. |
| DNS | Domain Name System |
| FQDN | Fully Qualified Domain Name |
| KBs | Kubernetes |
| KPI | Key Performance Indicator |
| MMI | Machine Machine Interface |
| MPS | Messages Per Second |
| NDB | Network Database |
| NF | Network Function |
| Network Function | A functional building block within a network infrastructure, which has well defined external interfaces and well defined functional behavior. In practical terms, a network function is often a network node or physical appliance. |
| Network Slice | A logical network that provides specific network capabilities and network characteristics. |
| Network Slice instance | A set of Network Function instances and the required resources (e.g. compute, storage and networking resources) which form a deployed Network Slice. |
| NF Consumer | A generic way to refer to an NF which consumes services provided by another NF. Ex: An AMF is referred to as a Consumer when it consumes AMPolicy services provided by the PCF. |
| NF Instance | A specific instance of a network function type. |
| NF Producer or NF Provider | A generic way to refer to an NF which provides services that can be consumed by another NF. Ex: A PCF is a provider NF and provides AMPolicy Services |
| NRF | Network Repository Function or Network Function Repository Function |
| PCF | Policy Control Function |
| PLMN | Public Land Mobile Network |
| Resiliency | The ability of the NFV framework to limit disruption and return to normal or at a minimum acceptable service delivery level in the fame of a fault, failure, or an event that disrupts normal operation. |
| Scaling | Ability to dynamically extend/reduce resources granted to the Virtual Network Function (VNF) as needed. This includes scaling out/in or scaling up/down. |
| Scaling Out/In/ Horizontally | The ability to scale by add/remove resource instances (e.g. VMs). Also called scaling Horizontally. |
| Scaling Up/Down/ Vertically | The ability to scale by changing allocated resources, e.g. increase/decrease memory, CPU capacity or storage size. |
| SCP | Service Communication Proxy |
| SEPP | Security Edge Protection Proxy |
| SMF | Session Management Function |
| URI | Uniform Resource Identifier |
