CAGR :Compound Annual Growth Rate
CAT5: Category 5 shielded cable
CC: Continuity Checking
CE: Customer Edge
CE: Customer Equipment
CES: Core Ethernet Switch bridge
CFI: Canonical Format Indicator
CIR: Committed Information Rate
CL: Control Load
CLE: Customer Located Equipment
CMTS: Cable Modem Termination System
Codec: Coder-Decoder
CoS : Class of service
CPU: Centra Processing Unit
CRC: Cyclic Redundancy check
CSPF: Contrained shoutest Path frist
CV: Connection Verification
C-VLAN: Customer VLAN

DA: Destination
DHCP: Dynamic Host Configuration Protocol
DLCI: Data Link Connection Identifier
DSCP: Differentiated Services Code Point
DSL: Digital Subscriber Line
DSLAM: DSL Access Multiplexer
DWDM: Dense Wavelength Division Multiplexing

EIGRP: Enhanced Interior Gateway Routing Protocol
E-LAN: Ethernet LAN services
E-LINE: Ethernet Line Services
EoMPLS: Ethernet over MPLS
EPG: Electronic Program Guide
EPL: Ethernet Private Line
ERO: Explicit Route Object
ESS: Ethernet Services Switch
ETH: ETHernet
EVC: Ethernet Virtual Connection
EVPL: Ethernat Virtual Connection
EVPLAN: Ethernet Virtual Private LAN
EXP: EXPerimental(bits)

FC: Fiber Channel
FCS: Frame Check Sequence
FDI: Forward Defect Indication
FEC: Forward Equivalent Class
FFD: Fast Failure Detection
FIB: Forwarding Information Base
FICON: Fiber CONnectivity
FR: Frame Relay
FRR: Fast Reroute
FTTN: Fiber to the Node
FTTP: Fiber to the Premises

GARP: General Address Registry Protocol
GE: Gigabit Ethernet
GFP: Generic Framing Procedure
GigE: Gigabit Ethernet (e.g. 1000BaseSx)
GMPLS: Generalized Multi Protocol Label Switching
GMRP: GARP Multicast Registration Protocol
GRE: Generic Routing Encapsulation
GUI: Graphical User Interface

HD: High Definition (video)
HFC: Hybrid Fiber-Coax
HIS: High peed Internet
H-VPLS: Hierarchical Virtual Private LAN Service
HVPLS: Hierarchical VPLS

I/F: InterFace

IAD: Inteegrated Access Device

ICMP: Internet Control Message Protocol

ID: Identifier

iDTV: Interactive Digital TV

IEEE: Institute of Electrical and Electronics Engineering

IES: Internet Enhanced Services

IETF: Internet Engineering Task Force

IGMP: Interior Gateway Protocol

ILEC: Incumbent Local Exchange Carrier

IP: Internet Protocol

IP/MPLS: Internet protocol/Multi Protocol Local Switching

IPLS: IP-only LAN Service

IPNM: IP Network Management

IPSec: IP Security

IR: InfraRed

ISIS : Intermediate System to Intermediate System

ISP: Internet Service Provider

LAN: Local Area Network

LB: Loop Back

LCAS: Link Capacity Adjustment Scheme

LDP: Label Distribution Protocol

MAC: Media Access Control

MBS: Maximum Burst Size

MEF: Metro Ethernet Forum

MEN: Metro Ethernet

MTU: Multi-Tenant Unit

NAT: Network Address Translation

NM: Network Manager

NOC: Network Operating Center

OMSN:Optical Multi-Service Node

OSPF:Open Shortest Path First

OSS :Operations Support System

PBX:Private Branch Exchange

PIM:Protocol-Independent Multicast

PM:Performance Monitoring

PPPoE:Point to Point Protocol over Ethernet

PSTN:Public Switched Telephone Network

P-VLAN:Provider VLAN

QoS:Quality of Service

RADIUS:Remote Authentication Dial-In User Service

RIP:Routing Information Protocol

RSTP:Rapid Spanning Tree Protocol

SAM:Service Aware Manager

SAP:Service Access Point

SME:Small and Medium size Enterprises

TCP:Transmission Control Protocol

TTL:Time To Live

UDP:User Datagram Protocol

VC:Virtual Circuit

VLAN:Virtual LAN

VoIP:Voice over Internet Protocol

VPN:Virtual Private Network

WAN:Wide Area Network

WWW:World Wide Web