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Abbreviations

Term	Description
3GPP	3rd Generation Partnership Project
AAA	Authentication, Authorisation, and Accounting
AArch64	64bit ARM architecture
Acc	Accelerator
AD	Active Directory
ADC	Application Delivery Controller
AES	Advanced Encryption Standard
AES-NI	AES New Instructions
AI	Artificial Intelligence
AMF	Access and Mobility management Function
API	Application Programming Interface
AR	Augmented Reality
ARM	Advanced RISC Machines
ARP	Address Resolution Protocol
AS	Application Servers
ASIC	Application-Specific Integrated Circuit
AUSF	AUthentication Server Function
AZ	Availability Zone
B2B	Business to Business
B2C	Business to Consumer
BBU	BaseBand Unit
BGCF	Border Gateway Control Function
BGP	Border Gateway Protocol
BGPaaS	BGP as a Service
BIOS	Basic Input Output System
BM	Bare Metal
BMC	Baseband Management Controller
BMRA	Bare Metal Reference Architecture
BNG	Broadband Network Gateway
BRAS	Broadband Remote Access Server
BSS	Business Support Systems
CaaS	Cloud Native Container as a Service
CaaS	Container as a Service
CAPEX	Capital Expenditure
C&V	Compliance & Verification
CCP	Centralised Control Plane
CCS	Converged Charging System
CDN	Content Distribution (or Delivery) Network
CG-NAT	Carrier-Grade Network Address Translation
cgroups	Control Groups
CHF	Charging Function (part of the converged charging system CCS)
CI/CD	Continuous Integration / Continuous Deployment
CIDR	Classless Inter-Domain Routing
CIM	Cloud Infrastructure Management
CIRV	Common Infrastructure Realization & Validation
CIS	Center for Internet Security
CIT	Cloud Integrity Tool
CLI	Command Line Interface
CM	Configuration Management
CNCF	Cloud Native Computing Foundation
CNF	Cloud Native Network Function
CNI	Container Network Interface
CNTT	Cloud iNfrastructure Telco Taskforce
CP	Control Plane
CPE	Customer Premises Equipment
CPU	Central Processing Unit
CRD	Custom Resource Definition
CRI	Container Runtime Interface
CRI-O	OCI compliant CRI implementation
CRTM	Core Root of Trust for Measurements
CRUD	Create, Read, Update, and Delete
CSA	Cloud Security Alliance
CSAR	(TOSCA) Cloud Service Archive
CSCF	Call Session Control Function
CSI	Container Storage Interface
CSP	Cloud Service Provider
CU	Centralised Unit (O-RAN context)
CVC	(LFN) Compliance Verification Committee
CVE	Common Vulnerabilities and Exposures
DANM	Damn, Another Network Manager
DBaaS	Data Base as a Service
DC	Data Center
DCP	Distributed Control Plane
DDoS	Distributed Denial of Service
DHCP	Dynamic Host Configuration Protocol
DMA	Direct Memory Access
DNS	Domain Name System
DPDK	Data Plane Development Kit
DPI	Deep Packet Inspection
DPU	Data Processing Unit
DRA	Diameter Routing Agent
DRAM	Dynamic Random Access Memory
DRTM	Dynamic Root of Trust for Measurements
DSP	Digital Signal Processor
DU	Distributed Unit (O-RAN context)
DVR	Distributed Virtual Routing
E2E	End to End
EBS	Elastic Block Storage
EFI	(BIOS) Extensible Firmware Interface
eMBB	Enhanced Mobile BroadBand
EMS	Element Management System
EPA	Enhanced Platform Awareness
EPC	Evolved Packet Core
ePDG	Evolved Packet Data GateWay
ESXi	(VMware) ESX Integrated
eTOM	Enhanced Telecom Operations Map
ETSI	European Telecommunications Standards Institute
EUAG	Linux Foundation Networking End User Advisory Group
EUD	End User Device
EULA	End-User License Agreement
EVPN	Ethernet Virtual Private Network
EVPN	Ethernet VPN
F2F	Face-to-Face
FC	Fiber Channel
FCAPS	Fault, Configuration, Accounting, Performance, Security
FFA	Fixed Function Accelerator
FPGA	Field Programmable Gate Array
FTTx	Fiber to the x
FW	Fire Wall
FWD	(Traffic) ForWarDed
GB	Giga Byte
GFS	Global (Linux) File System
GGSN	Gateway GPRS Support Node
Gi or GiB	Gibibyte (10243) bytes
GPRS	General Packet Radio Service
GPS	Global Positioning System
GPU	Graphics Processing Unit
GRE	Generic Routing Encapsulation
GSM	Global System for Mobile Communications, previously Groupe Speciale Mobile
GSMA	GSM Association
GUI	Graphical User Interface
GW	Gateway
HA	High Availability
HCP	Hyperscaler Cloud Provider
HDD	Hard Disk Drive
HDFS	Hadoop Distributed File System
HDV	Hardware Delivery Validation
HLR	Home Location Register
HOT	(OpenStack) Heat Orchestration Templates
HSS	Home Subscriber Server
HTML	Hyper Text Markup Language
HW	Hardware
IaaS	Infrastructure as a Service
IaC (IaaC)	Infrastructure as Code (or “as a”)
IAM	Identity and Access Management
ICMP	Internet Control Message Protocol
ID	Identifier
IDF	(OPNFV) Installer Descriptor File
IdP	Identity Provider
IDRAC	(Dell) Integrated Dell Remote Access Controller
IDS	Intrusion Detection System
ILO	(HPE) Integrated Lights-Out
IMS	IP Multimedia Subsystem
IO	Input/Output
IOMMU	Input/Output Memory Management Unit
IOPS	Input/Output per Second
IoT	Internet of Things
IP	Internet Protocol
IPAM	IP Address Management
IPMI	Intelligent Platform Management Interface
IPS	Intrusion Prevention System
IPSec	Internet Protocol Security
iSCSI	Internet Small Computer Systems Interface
IT	Information Technology
ITIL	IT Infrastructure Library
K8s	Kubernetes
KPI	Key Performance Indicator
KVM	Keyboard, Video and Mouse
LaaS	(Testing) Lab as a Service
LAN	Local Area Network
LB	Load Balancer
LBaaS	Load Balancer as a Service
LCM	LifeCycle Management
LDAP	Lightweight Directory Access Protocol
LFN	Linux Foundation Networking
LLDP	Link Layer Discovery Protocol
LMA	Logging, Monitoring, and Analytics
LSR	Label Switching Router
MAAS	(Canonical) Metal as a Service
MAC	Media Access Control
MANO	Management and Orchestration
MC-LAG or MLAG	Multi-chassis Link Aggregation Group
MEC	Multi-access Edge Computing
MGCF	Media Gateway Control Function
MGW	Media GateWay
Mi or MiB	Mebibyte (10242)
ML	Machine Learning
ML2 or ML-2	Modular Layer 2
MME	Mobility Management Entity
mMTCs	Massive Machine-Type Communications
MPLS	Multi-Protocol Label Switching
MRF	Media Resource Function
MSAN	MultiService Access Node
MSC	Mobile Switching Center
MTAS	Mobile Telephony Application Server
MVNO	Mobile Virtual Network Operator
NaaS	Network as a Service
NAT	Network Address Translation
NBI	North Bound Interface
NEF	Network Exposure Function
NF	Network Function
NFD	Node Feature Discovery
NFP	Network Forwarding Path
NFR	Non Functional Requirements
NFS	Network File System
NFV	Network Function Virtualisation
NFVI	Network Function Virtualisation Infrastructure
NFVO	Network Function Virtualisation Orchestrator
NIC	Network Interface Card
NIST	National Institute of Standards and Technology
NMS	Network Management System
NPL	Network Programming Language
NPN	Non-Public Network
NPU	Neural Processing Unit
NR	New Radio (5G context)
NRF	Network Repository Function
NS	Network Service
NSSF	Network Slice Selection Function
NTP	Network Time Protocol
NUMA	Non-Uniform Memory Access
NVMe	Non-Volatile Memory Express
NW	Network
OAM	Operations, Administration and Maintenance
OCI	Open Container Initiative
OCS	Online Charging system
ODIM	Open Distributed Infrastructure Management
OFCS	Offline Charging System
OLT	Optical Line Termination
ONAP	Open Network Automation Platform
ONF	Open Networking Forum
OOB	Out of Band
OPEX	Operational Expenditure
OPG	(GSMA) Operator Platform Group
OPNFV	Open Platform for NFV
ORAN	Open Radio Access Network
O-RAN	Open RAN
OS	Operating System
OSD	(Ceph) Object Storage Daemon
OSS	Operational Support Systems
OSSA	OpenStack Security Advisories
OSTK	OpenStack
OVP	OPNFV Verified Program
OVS	Open Virtual Switch
OWASP	Open Web Application Security Project
PaaS	Platform as a Service
PCF	Policy Control Function
PCIe	Peripheral Component Interconnect Express
PCI-PT	PCIe PassThrough
PCR	Platform Configuration Register
PCRF	Policy and Charging Rules Function
PDF	(OPNFV) Pod Descriptor File
PF	Physical Function
PGW	Packet data network GateWay
PGW-C	PGW Control plane
PGW-U	PGW User plane
PIM	Privileged Identity Management
PLMN	Public Land Mobile Network
PM	Performance Measurements
POD	Point of Delivery
PRD	Permanent Reference Document
PTP	Precision Time Protocol
PV	Persistent Volumes
PVC	Persistent Volume Claims
PXE	Preboot Execution Environment
QEMU	Quick EMUlator
QoS	Quality of Service
R/W	Read/Write
RA	Reference Architecture
RAM	Random Access Memory
RAN	Radio Access Network
RBAC	Role-bases Access Control
RC	Reference Conformance
Repo	Repository
RFC	Request for Change
RFC	Request for Comments
RGW	Residential GateWay
RI	Reference Implementation
RISC	Reduced Instruction Set Computing
RM	Reference Model
ROI	Return on Investment
RR	Route Reflector
RTM	Requirements Traceability Matrix
RTM	Root of Trust for Measurements
RTT	Round Trip Time
RU	Radio Unit (O-RAN context)
S3	(Amazon) Simple Storage Service
SA	Service Assurance
SaaS	Software as a Service
SAML	Security Assertion Markup Language
SAN	Storage Area Network
SATA	Serial Advanced Technology Attachment
SBA	Service Based Architecture
SBC	Session Border Controller
SBI	South Bound Interface
SCAP	Security Content Automation Protocol
SDF	(OPNFV) Scenario Descriptor File
SDK	Software Development Kit
SDN	Software-Defined Networking
SDNC	SDN Controller
SDNo	SDN Overlay
SDNu	SDN Underlay
SDO	Standard Development Organisation
SDS	Software-Defined Storage
SD-WAN	Software Defined Wide Area Network
Sec	Security
Sec-GW	Security GateWay
SF	Service Function
SFC	Service Function Chaining
SFF	Service Function Forwarder
SFP	Service Function Paths
SGSN	Serving GPRS Support Node
SGW	Serving GateWay
SGW-C	SGW Control plane
SGW-U	SGW User plane
SIEM	Security Information and Event Monitoring
SIG	Special Interest Group
SIP	Session Initiation Protocol
SLA	Service Level Agreement
SME	Subject Matter Expert
SMF	Session Management Function
SMS	Short Message Service
SMSC	SMS Center
SMT	Simultaneous Multi-Threading
SNAT	Source Network Address Translation
SNMP	Simple Network Management Protocol
SONiC	Software for Open Networking in the Cloud
SR-IOV	Single Root Input Output Virtualisation
SRTM	Static Root of Trust for Measurements
SRV	(Traffic) client-SeRVer traffic
SSD	Solid State Drive
SSH	Secure SHell protocol
SSL	Secure Sockets Layer
SUT	System Under Test
SW	Software
TBC	To Be Confirmed
TC	Test Case
TCP	Transmission Control Protocol
TEC	(GSMA) Telco Edge Cloud
TF	Tungsten Fabric
TFTP	Trivial File Transfer Protocol
TIP	Telecom Infra Project
TLB	Translation Lookaside Buffers
TLS	Transport Layer Security
TOR	Top of Rack
TOSCA	Topology and Orchestration Specification for Cloud Applications
TPM	Trusted Platform Module
TTL	Time To Live
TUG	(CNCF) Telco User Group
UDM	Unified Data Management
UDP	User Datagram Protocol
UDR	Unified Data Repository
UEFI	Unified Extensible Firmware Interface
UHD	Ultra High Definition
UI	User Interface
UPF	User Plane Function
uRLLC	Ultra-Reliable Low-Latency Communications
V2I	Vehicle to Infrastructure
V2N	Vehicle to Network
V2P	Vehicle to Pedestrian
V2V	Vehicle to Vehicle
V2X	Vehicle-to-everything
VA	Virtual Application
VAS	Value Added Service
V&V	Verification And Validation
vCPU	Virtual CPU
VF	Virtual Function
VI	Vendor Implementation
vIDS	Virtualised IDS
VIM	Virtualised Infrastructure Manager
vIPS	Virtualised IPS
VLAN	Virtual LAN
VM	Virtual Machine
VMM	Virtual Machine Monitor (or Manager)
VNF	Virtualised Network Function
VNFC	Virtualised Network Function Component
VNFM	Virtualisedl Network Function Manager
VNI	VXLAN Network Identifier
vNIC	Virtual Network Interface Card
VoLTE	Voice over LTE
VPN	Virtual Private Network
VPP	Vector Packet Processing
VR	Virtual Reality
vRAN	Virtualised Radio Access Network
VRF	Virtual Routing and Forwarding
VRRP	Virtual Router Redundancy Protocol
VTEP	Virtual Termination End Point
VTP	(ONAP) VNF Test Platform
VxLAN	Virtual Extensible LAN
vXYZ	virtual XYZ, e.g., as in vNIC
WG	Working Group
Wi-Fi	Wireless Fidelity
WLAN	Wireless Local Area Network
WLC	Wireless LAN Controller
WS	WorkStream