Abbreviations

Term	Meaning
AMF	Access and Mobility Management Function
APN	Access Point Name
ARP	Address Resolution Protocol
AS	Autonomous System
ASN	Autonomous System Number
BB	Bottleneck Bandwidth
BDP	Bandwidth Delay Product
BGP	Border Gateway Protocol
BPDU	Bridge Protocol Data Unit
BSS	Business Support System
CC	Continuity Count
CDP	Cisco Discovery Protocol
CESoE	Circuit Emulation Services over Ethernet
CFM	Connectivity Fault Management
CGMP	Cisco Group Management Protocol
CIR	Committed Information Rate
CPE	Customer-Premises Equipment
CRC	Cyclic Redundancy Check
CSS	Cascading Style Sheets
DHCP	Dynamic Host Configuration Protocol
DNS	Domain Name System
DoS	Denial of Service
DS	Differentiated Services
DSCP	Differentiated Services Code Point
DSLAM	Digital Subscriber Line Access Multiplexer
DTP	Dynamic Trunking Protocol
DUT	Device Under Test
DV	Delay Variation
EAPoL	Extensible Authorization Protocol over LAN
Ec/Io	Per-chip signal-to-noise ratio
EIGRP	Enhanced Interior Gateway Routing Protocol
EIR	Excess Information Rate
EPC	Evolved Packet Core
ES	Errored Second(s)
ESMC	Ethernet Synchronization Messaging Channel
ETH	Ethernet
EVC	Ethernet Virtual Connection
EVPL	Ethernet Virtual Private Line
EVP-LAN	Ethernet Virtual Private LAN
FEC	Forward Error Correction
FM	Fault Management
FTP	File Transfer Protocol
GSM	Global System for Mobile Communication
GSMP	General Switch Management Protocol
HLS	HTTP Live Streaming
HTTP	Hypertext Transfer Protocol
HTTPS	Hypertext Transfer Protocol Secure
ICMP	Internet Control Message Protocol
IETF	Internet Engineering Task Force
IGMP	Internet Group Management Protocol
IMAP	Internet Message Access Protocol
IMEI	International Mobile Equipment Identity
IMSI	International Mobile Subscriber Identity
IP	Internet Protocol
IPP	IP Precedence
IS-IS	Intermediate System – Intermediate System
ISP	Internet Service Provider
KPI	Key Performance Indicator
L2CP	Layer 2 Control Protocols
LACP	Link Aggregation Control Protocol
LAMP	Link Aggregation Marker Protocol
LAN	Local Area Network
LLC	Logical Link Control
LLDP	Link Layer Discovery Protocol
LTE	Long Term Evolution
MAC	Medium Access Control
MANO	Management and Orchestration
MBH	Mobile Backhaul
MC	Multicast
MCC	Mobile Country Code
ME	Maintenance Entity
MEF	Metro Ethernet Forum
MEG	Maintenance Entity Group
MEL	MEG (Maintenance Entity Group) Level
MEP	MEG (Maintenance Entity Group) End Point
MIB	Management Information Base
MIP	MEG (Maintenance Entity Group) Intermediate Point
MITM	Man In The Middle
MLD	Multicast Listener Discovery
MNC	Mobile Network Code
MOS	Mean Opinion Score
MPEG	Moving Picture Experts Group
MPLS	Multiprotocol Layer Switching
MPTS	Multi Program Transport Stream
MSTP	Multiple Spanning Tree Protocol
MVRP	Multiple VLAN Registration Protocol
MTU	Maximum Transmission Unit
NAT	Network Address Translation
NDP	Neighbor Discovery Protocol
NFV	Network Function Virtualization
NFVI	Network Function Virtualization Infrastructure
NG-RAN	Next Generation Radio Access Network
NIC	Network Interface Controller (or: Card)
NMS	Network Management Station
NOC	Network Operations Center
NTP	Network Time Protocol
OAM	Operations, Administration, and Management (or: Maintenance)
OCA	Open Connect Appliance
OSPF	Open Shortest Path First (protocol)
OSS	Operations Support System
OTT	Over-The-Top
OUI	Organizationally Unique Identifier
OWAMP	One-Way Active Measurement Protocol
PAT	Program Association Table
PCAP	Packet Capture
PCP	Priority Code Point
PCR	Program Clock Reference
PD	Packet Delay
PDU	Protocol Data Unit
PDV	Packet Delay Variation
PGW	Packet data network Gateway
PID	Packet Identifier
PLMN	Public Land Mobile Network
PLR	Packet Loss Ratio
PM	Performance Management
PMT	Program Map Table
PPP	Point-to-Point Protocol
PPPoE	Point-to-Point Protocol over Ethernet
PVST	Per-VLAN Spanning Tree
QAM	Quadrature Amplitude Modulation
Q-in-Q	Informal name for IEEE 802.1ad, amendment to IEEE 802.1Q-1998
QoS	Quality of Service
RAN	Radio Access Network
RARP	Reverse Address Resolution Protocol
RAT	Radio Access Technology
RGW	Residential Gateway
RIPv2	Routing Information Protocol version 2
RPCAP	Remote Packet Capture
RRH	Remote Radio Head
RSCP	Received Signal Code Power
RSRP	Reference Signal Received Power
RSRQ	Reference Signal Received Quality
RSSI	Received Signal Strength Indication
RSTP	Rapid Spanning Tree Protocol
RTP	Real-time Transport Protocol
RTT	Round-Trip Time
SaaS	Software as a Service
SAP	Service Access Point
SAVI	Source Address Validation Improvement
SCTP	Stream Control Transmission Protocol
SD	Slice Differentiator
SDN	Software-Defined Networking
SES	Severely Errored Second(s)
SFD	Start of Frame Delimiter
SFP	Small Form-factor Pluggable (transceiver)
SINR	Signal to interference-plus-noise ratio
SIP	Session Initiation Protocol
SLA	Service Level Agreement
SLAAC	Stateless Address Autoconfiguration
SLM	Synthetic Loss Measurement
SLS	Service Level Specification
SNAP	Subnetwork Access Protocol
SNMP	Simple Network Management Protocol
SP	Service Provider
SSH	Secure Shell
SSL	Secure Sockets Layer
SST	Slice/Service Type
STB	Set-Top Box
STP	Spanning Tree Protocol
TA	Test Agent
TAC	Tracking Area Code
TCP	Transmission Control Protocol
TLS	Transport Layer Security
TOS	Type of Service
TS	Transport Stream
TTL	Time To Live
TWAMP	Two-Way Active Measurement Protocol
UAS	Unavailable Seconds
UDP	User Datagram Protocol
UNI	User–Network Interface
URI	Uniform Resource Identifier
URL	Uniform Resource Locator
UTF	UCS (Universal Character Set) Transformation Format
VLAN	Virtual Local Area Network
VM	Virtual Machine
VNF	Virtualized Network Function
VoIP	Voice over IP
vTA	Virtual Test Agent
VTP	VLAN Trunk Protocol
WAN	Wide Area Network
WCDMA	Wideband Code Division Multiple Access
Y.1563	ITU-T Y.1563: Ethernet frame transfer and availability performance
Y.1564	ITU-T Y.1564: Ethernet service activation test methodology
Y.1731	ITU-T Y.1731: Performance monitoring in a service provider network