Ad Index

A

AB: Access Bearer
ACL: Access Control List
AF: Amplify-and-Forward
AGI: Attachment Group Indicator
AIS: Alarm Indication Signal
ALG: Application Layer Gateway
AMBR: Aggregated Maximum Bite Rate
AMPS: Advanced Mobile Phone System
AN: Access Network
API: Application Programming Interface
APN: Access Point Name
APS: Automatic Protection Switching
ARP: Allocation and Retention Priority
ARPU: Average Revenue Per User
AS: Application Server
ASON: Automatic Switching Optical Network
ATM: Asynchronous Transfer Mode
AWGN: Additive White Gaussian Noise

B
BDI: Backward Defect Indication
BER: Block Error Rate
BGCF: Border Gateway Control Function
BGP: Border Gateway Protocol
BRAS/SR: Broadband Remote AccessServer/Service Router

C
CAC: Connection Acceptance Control
CC: Continuity Check
CE: Carrier Ethernet
CEFL: Cluster-Head Election Using FuzzyLogic
CES: Circuit Emulation Service
CESP: Carrier Ethernet Multi-Service Platform
CFM: Connectivity Fault Management
CIR: Committed Information Rate
CoS: Class of Service
CRBT: Color Ring Back Tone
CRC: Cyclic Redundancy Check
CSF: Client Signal Failure
CSMA/CD: Carrier Sense Multiple Accesswith Collision Detect
CV: Connectivity Verification

D
DDR2: Double Data Rate Two
DF: Decode-and-Forward
DiffServ: Differentiated Service
DMM: Delay Measurement Message
DMR: Delay Measurement Response
DSLAM: Digital Subscribe Line Access Multiplexer
DVB: Digital Video Broadcasting
DWDM: Dense Wavelength Division Multiplexing

E
EAPS: Ethernet Automatic Protection Switching
ECMP: Equal Cost Multipath
EECS: Energy Efficient Clustering Scheme
EFM: Ethernet in the First Mile
E-NNI: External Network-Network Interface
eNodeB: Evolved NodeB
EPL: Ethernet Private Line
EPLAN: Ethernet Private LAN
EPON: Ethernet Passive Optical Network
EPS: Evolved Packet System
ERP: Ethernet Ring Protection
E-SPRing: Ethernet-Shared Protection Ring
EVC: Ethernet Virtual Connection
EVPL: Ethernet Virtual Private Line
EVPLAN: Ethernet Virtual Private LAN
EXM: Experimental OAM Message
EXR: Experimental OAM Reply

F
FBC: Flow Based Charging
FCAPS: Fault, Configuration, Accounting,
               Performance, Security
FCS: Frame Check Sequence
FDD Frequency Division Duplex
FDI: Forward Defect Indication
FDMA: Frequency Division Multiple Access
FE: Fast Ethernet
FEC: Forwarding Equivalence Class
FFD: Fast Failure Detection
FR: Frame Relay
FRR: Fast Rerouting

G
GAF: Geographical Adaptive Fidelity
GBR: Guaranteed Bite Rate
GEAR: Geographic and Energy AwareRouting
GEM: Graph Embedding
GFP: Generic Framing Protocol
GGSN: Gateway GPRS Support Node
G-MPLS: Generalized Multi-Protocol Label Switching
GoS: Grade of Service
GPSR: Greedy Perimeter Stateless Routing
GRE: Generic Routing Encapsulation
GROUP: Grid-Clustering Routing Protocol
GRWLI: Geographic Routing without Location Information
GTP: GPRS Tunnel Protocol

H
HARQ: Hybrid Automatic Repeat Request
HDLC: High-Level Data Link Control
HN: Home Network
HSDPA: High Speed Download Packet Access
HSS: Home Subscriber Server
H-VPLS: Hierarchical Virtual Private LAN Service

I
ICE: Interactive Connectivity Establishment
I-CSCF: Interrogate Call Session Control Function
IDFT: Inverse Discrete Fourier Transform
IMS: IP Multimedia Subsystem
IM-SSF: IP Multimedia Service Switching Function
IntServ: Integrated Services
IP-CAN: IP Connectivity Access Network
IPDSLAM: Internet Protocol Digital Subscriber Line Access Multiplexer
IPsec: Internet Protocol Security
ISC: IMS Service Control

L
L2TP: Layer 2 Tunneling Protocol
L2VPN: Layer 2 Virtual Private Network
LAPS: Link Access Protocol for SDH
LAR: Location-Aided Routing
LB: Loopback
LBM: Loopback Message
LBR: Loopback Response
LCK: Locked
LDEPA: Lightweight Distributed Ethernet Protection Algorithm
LDP: Label Distribution Protocol
LDPC: Low Density Parity Check
LM: Loss Measurement
LMM: Loss Measurement Message
LMP: Link Management Protocol
LMR: Loss Measurement Response
LOC: Loss of Continuity
LRM: Label Release Message
LSP: Label Switching Path
LT: Link Trace
LTE: Long Term Evolution

M
MAC: Media Access Control
MAN: Metropolitan Area Network
MBR: Maximum Bit Rate
MCC: Management Communication Channel
MEF: Metro Ethernet Forum
MEL: Maintenance Entity Group Level
MEN: Metro Ethernet Network
MFA: Frame Relay Alliance
MGCF: Multimedia Gateway Control Function
MGW: Media Gateway
MIMO: Multiple-Input Multiple-Output
MME: Mobility Management Entity
MPLS: Multi-Protocol Label Switching
MRFC: Multimedia Resource Function Controller
MRFP: Multimedia Resource Function Processor
MSAN: Multi-Service Access Node
MSR: Multi-Service Ring
M-STP: Multiple Spanning Tree Protocol
MSTP: Multi-Service Transport Platform
MTU: Multi-Tenant Unit

N

NACF: Network Attachment Control Function
NAPT-PT: Network Address and Port Translation-Protocol Translation
NAT: Network Address Translation
NC: Network Controller
NCC: Network Coded Cooperation
NE: Network Element
NMS: Network Management System
NMT: Nordic Mobile Telephone
NNI: Network Network Interface
Non-GBR: Non-Guaranteed Bite Rate

O
OAM: Operation, Administration and Maintenance
Och: Optical Channel
ODM: One-Way Delay Measurement
ODU: Optical Data Unit
OFDM: Orthogonal Frequency Division Multiplexing
OIF: Optical Internetworking Forum
OLT: Optical Line Terminal
ON: Office Network
OPEX: Operation Expenditure
OSA: Open Service Access
OSI: Open System Interoperability
OSS: Operation Support System
OTN: Optical Transport Network

P
P2MP: Point-to-Multipoint
P2P: Point-to-Point
PAN: Personal Area Network
PB: Provider Bridge
PBB: Provider Backbone Bridge
PBN: Provider Bridge Networks
PBT: Provider Backbone Transport
PBX: Private Branch Exchange
PCC: Policy and Charging Control
PCE: Path Computation Element
PCRF: Policy and Charging Rules Function
P-CSCF: Proxy Call Session Control Function
PDB: Packet Delay Budget
PDF: Policy Decision Function
PD-FE: Policy Decision Functional Entity
PDH: Pseudo-Synchronous Digital Hierarchy
PDN: Packet Data Network
PDP: Packet Data Protocol
PDU: Protocol Data Unit
PE: Provider Edge
PE-FE: Policy Enforcement Functional Entity
PEP: Policy Enforcement Point
PHP: Penultimate Hop Popping
PIR: Peak Information Rate
PLMN: Public Land Mobile Network
PLR: Packet Loss Rate
PMIP: Proxy Mobile IP
POS: Packet Over SDH
PPP: Point-to-Point Protocol
PQ: Priority Queuing
PSN: Packet Switching Network
PSTN: Public Switched Telephone Network
PTN: Packet Transport Network
PUSCH: Physical Uplink Shared Channel
PVC: Permanent Virtual Connection
PW: Pseudowire
PWD: Pseudowire Denotation
PWE3: Pseudowire Emulation Edge-to-Edge
PWL: Pseudowire Label

Q
QCI: QoS Class Identifier
QoS: Quality of Service

R
RACF: Resource and Acceptance Control Function
RAT: Radio Access Technologies
RB: Radio Bearer
RB-ID: Radio Bearer Identifier
RDI: Remote Defect Indication
RPR: Resilient Packet Ring
RSTP: Rapid Spanning Tree Protocol
RSVP: Resource Reservation Protocol
RTOS: Real-Time Operating Systems

S
SA: Customer Source MAC
SAE: System Architecture Evolution
SAII: Source Attachment Individual Identifier
SCC: Signalling Communication Channel
SCF: Service Control Function
SC-FDMA: Single Carrier Frequency Division Multiple Access
SCS: Service Capability Server
S-CSCF: Serving Call Session Control Function
SDF: Service Data Flow
SDH: Synchronous Digital Hierarchy
SGSN: Serving GPRS Support Node
SGW: Signaling Gateway
SIP: Session Initiation Protocol
SLA: Service Level Agreement
SLF: Subscription Locator Function
SONET: Synchronous Optical Network
SSM: Synchronization Status Message
STBC: Space Time Block Coding
STCC: Space-Time Coded Cooperation
STM: Synchronous Transport Module
STP: Spanning Tree Protocol
STTC: Space Time Trellis Coding
SUT: System Under Test

T
TB: Transport Block
TBF: Trajectory Based Forwarding
TCAS: Traffic alert and Collision Avoidance System
TCP: Transmission Control Protocol
TDM: Time Division Multiplexing
TD-SCDMA: Time Division Synchronous Code Division Multiple Access
TE: Traffic Engineering
TEID: Tunnel Endpoint Identifier
TFT: Traffic Flow Template
THIG: Topology Hiding Inter-Network Gateway
T-MPLS: Transport Multi-Protocol Label Switching
ToS: Type of Service
TRC-FE: Transport Resource Control Functional Entity
TTDD: Two-Tier Data Dissemination
TTI: Transmission Time Interval
TTL: Time-to-Live
TURN: Traversal Using Relay NAT

U
UE: User Equipment
UL-SCH: Uplink Shared Channel
UMB: Ultra Mobile Broadband
UMTS: Universal Mobile Telecommunication System
UNI: User-Network Interface

V
VAS: Value-Added Service
VC: Virtual Circuit
VID: VLAN Identifier
VLAN: Virtual Local Area Network
VoD: Video on Demand
VoIP: Voice over Internet Protocol
VPLS: Virtual Private LAN Service
VPN: Virtual Private Network
VPWS: Virtual Private Wire Service
VS: Vendor Specific
VSI: Virtual Switching Instance
VSM: Vendor Specific OAM Message
VSR: Vendor Specific OAM Reply

W
WAN: Wide Area Network
WCDMA: Wideband Code Division Multiple Access
WFQ: Weighted Fair Queuing
WiMAX: Worldwide Interoperability for Microwave Access
WINNER: Wireless World Initiative New Radio
WLAN: Wireless Local Area Networks
WRR: Weighted Round Robin
WSN: Wireless Sensor Network
WWRF: Wireless World Research Forum

Z
ZESR: ZTE Ethernet Smart Ring