10G – 10 Gbps (gigabits per second)

100G –  100 Gbps (gigabits per second)

200G – 200 Gbps (gigabits per second)

1GE – 1 Gigabit Ethernet

10GE –  10 Gigabit Ethernet

3G – 3rd generation of mobile telecommunications technology

4G- 4th generation of mobile telecommunications technology

5G – 5th generation of mobile telecommunications technology

5 9’s – 99.999% network reliability equalling 31 seconds of unplanned downtime per year

ADM – Add/Drop Multiplexer

API – Application Programming Interface

APS – Automatic Protection Switching

ATM – Asynchronous Transfer Mode

BAFO – Best and final offer

BLSR – Bidirectional Line-Switched Ring

BSS – Business Support System

Carrier Grade

CE – Carrier Ethernet

CES – Circuit Emulation Service

CLEC – Competitive Local Exchange Carrier (aka, telephone company)

CLI – Command Line Interface

CO – Central Office

CORBA – Common Object Request Broker Architecture

CPU – Central Processing Unit

CWDM – Coarse Wavelength Division Multiplexing

DCC – Data Communications Channel

DCN – Dynamic Circuit Network

DCS – Digital Cross Connect System

Downtime

DOT – Department of Transportation

DS1 – 1.544 Mbps

DS3 – 44.736 Mbps

DSF Dispersion Shifted Fiber

DSLAM Digital Subscriber Line Access Module

DWDM – Dense Wavelength Division Multiplexing

EDFA Erbium-Doped Fiber Amplifier

EMS – Element Management System

EoS Ethernet over SONET SMF Single Mode Fiber

FOC – Fiber Optic Characterization

GUI Graphical User Interface

IEEE 802.1ag Connectivity Fault Management (CFM)

ILEC – Incumbent Local Exchange Carrier (aka, telephone company)

IOC – Independent Operating Company (aka, telephone company)

IP – Internet Protocol

ISP – Internet Service Provider

ITS – Intelligent Transportation System

ITU-T.1731 – Performance Monitoring & Fault Detection

ITU-Y.1564 – Service Activation Test

IXC – Interexchange Carrier (aka, long distance telephone company)

JSON – JavaScript Object Notation

LAN – Local Area Network

LAN Local Area Network

LSP Local Service Provider

MAN Metropolitan Area Network

Mb/s Million bits per second

MDH – netFLEX multidomain Heatlh application

Mission Critical

MOP – Methods-of-Procedure

MPLS – Multiple Protocol Label Switching

MPLS-TP – Multiple Protocol Label Switching – Transport Profile

MSO – Multi Systems Operator (aka, CATV provider)

MTOSI – Multi-Technology Operations System Interface

NE Network Element

NETCONF – Network Configuration Protocol

NFV – Network Function Virtualization

NMS – Network Management System

NOC – Network Operations Center

OA&M – Operations, Administration and Maintenance

OADM – Optical Add/Drop Multiplexer

OAM&P Operations, Administration, Maintenance and Provisioning

OC-12 – 622.08 Mbps

OC-192 – 9.953Gbps

OC-3 – 155.52Mbps

OC-48 – 2.488 Gbps

ODC – netFLEX Optical Domain Controller

OLC – Optical Line Card

OS – Operating Systems

OSI Model – Open Systems Inconnection

OSPF – Open Shortest Path First

OSS – Operation Support System

OTN – Optical Transport Network

OTU0 – 1.3Gbps

OTU1 – 2.6Gbps

OTU2 – 10.7Gbps

OTU2e – 11.1Gpbs

OTU3 – 43Gps

OTU4 – 111.8Gbps

OXC – Optical Cross-Connect

PA – Public Address

PM – Performance Monitoring

POP – Point of Presence

QoS – Quality of Service

R&D – Research and Development

RBOC – Regional Bell Operating Company (e.g., Verizon)

REST – Representational State Transfer

RFP – Request for Proposal

RFP – Request for Information

RFQ – Request for Quotation

ROADM – Reconfigurable Optical Add Drop Multplexer

RTS – Remote Technical Support

SAN – Storage Area Network

SCADA – Supervisory Control and Data Acquisition

SDN – Software Defined Networking

SLA – Service Level Agreement

SNMP  – Simple Network Management Protocol

SONET – Synchronous Optical Network

SOW – Statement-of-Work

STS – Synchronous Transport Signal

TAC – Technical Assistance Center

TDM – Time Division Multiplexing

TL1 Transaction Language 1

UNI – User Network Interface

VoIP – Voice over IP

VPN – Virtual Private Network

VT – Virtual Tributary

WAN – Wide Area Network

WDM – Wavelength Division Multiplexing

WSO – netFLEX Wavelength Service Orchestrator

XML – Extensible Markup Language

Yang – Yet Another Next Generation

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