Network Acronyms

Description:	Acronyms for computer networks
Category:	Computers
Created by:	halibut on 2004-02-02

Acronym	Meaning
JISC	Joint Information Systems Committee
Internet	Networks to other organisations
Intranet	Communications to services within an organisation
PAN	Personal Area Network
LAN	Local Area Network
WAN	Wide Area Network
MAN	Metropolitan Area Network
AAL	ATM Adaptation Layer
AAP	Alternate Access Provider
AAR	Automatic Alternate Routing
ABATS	Automatic Bit Access Test System
ABM	Asynchronous Balanced Mode
ABR	Available Bandwidth Rate
ABR	Available Bit Rate
AC	Access Control
ACD	Automatic Call Distribution
ACF	Access Coordination Function
ACF	Advanced Communications Function
ACF	Access Control Field
ACK	Acknowledgement
ACM	Address Complete Message
ACO	Automatic Cut Off
ACSE	Association Control Service Element
ADC	Analog to Digital Converter
ADCCP	Adv Data Comm Control Procedure
ADM	Add/Drop Multiplexer
ADM	Asynchronous Disconnected Mode
ADM	Add/Drop Multiplexer
ADM 3X	DS3 Add-Drop Multiplex
ADPCM	Adaptive Differential Pulse Code Modulation
ADPCM	Adaptive Differential Pulse Code Mod.
ADSL	Asymmetric Digital Subscriber Line
ADSS	All Dielectric Self-Supporting
ADTS	Automated Digital Terminal Systems
AFPS	Automatic Facility Protection Switching
AFSK	Audio Frequency Shift Keying
AIN	Advanced Intelligent Network
AIS	Alarm Indication Signal
AIS-L	Alarm Indication Signal - Line
AIS-P	Alarm Indication Signal - Path
AIS-V	Alarm Indication Signal - Virtual (Tributary)
AIU	Analog Interface Unit
AL	Access Link
ALI	Automatic Location Indication
ALIT	Automatic Line Insulation Test
ALPS	Automatic Loop Protection Switching
ALS	Active Line State
AMA	Automatic Message Accounting
AMI	Alternate Mark Inversion
AMPS	Advanced Mobile Phone Service
AN	Access Node
ANC	Access network Controller
ANI	Automatic Number Identification
ANM	ANswer Message
ANR	Auto Network Routing
ANS1	Abstract Syntax Notation 1
ANSI	American National Standards Institute
AOC	ADSL overhead control channel
AON	All Optical Network
AP	Access Point
AP	Action Point
APDU	Application Protocol Data Unit
API	Application Programming Interface
APPC	Advanced Program to Program Comm
APR	Alarm Processing Remote
APS	Automatic Protection Switching
ARD	Automatic Ring Down
ARP	Address Resolution Protocol
ARQ	Automatic Retransmission Request
AS56	Accunet Switched 56
ASB	Application Specific Bits
ASCII	American Std Code for Info Interchange
ASDS	Accunet Sprectrum of Digital Device Svc
ASE	Applications Service Element
ASN.1	Abstract Syntax Notation One
ASP	Application Service Provider
AT	Access Tandems
ATD	Asynchronous Time Division
ATM	Asynchronous Transfer Mode
ATM-LI	ATM Link Identifier
ATMM	ATM Layer Management
ATM-PCI	ATM Protocol Control Information
ATM-SDU	ATM Service Data Unit
ATU-C	ADSL Transceiver Unit - Central office end
ATU-R	ADSL Transceiver Unit - Remote terminal end
AU	Administrative Unit
AUG	AU Group
AUI	Attachment Unit Interface
AVS	AVailable Seconds
B	Bearer Channel
B3ZS	Bipolar 3 Zero Substitution/Suppression
B6ZS	Bipolar 6 Zero Substitution
B8ZS	Bipolar 8 Zero Substitution
B8ZS	Bipolar 8 Zero Suppression
BA	Buffer Allocation
BAF	Bellcore AMA Format
BAsize	Buffer Allocation
Bc	Committed Burst Size
BC	Bearer Capability
BCC	Block Check Code
BCD	Binary Coded Decimal
BCI	Bit Count Integrity
BCM	Bit Compression Multiplexer
BCN	BeaCoN
B-CPE	Broadband Customer Premises Equipment
BCS	Binary Synchronous Communication
BDCS	Broadband Digital Cross-connect Sys
BECN	Backward Explicit Congestion Notification
BER	Bit Error Rate
BERT	Bit Error Rate Tester
BES	Bursty Errored Second
BEtag	Beginning/End Tag
BGP	Border Gateway Protocol
BIB	Backward Indicator Bit
BICI	Broadband InterCarrier Interface
B-ICI	Broadband Isdn InterCarrier Interface
BIP	Bit Interleaved Parity
BIP-N	Bit Interleaved Parity - N
BISDN	Broadband Integrated Services Digital Network
BISYNC	Binary Synchronous Communications
BIU	Basic Information Unit
BLER	Block Error Rate
BMS	Bandwidth Management System
BNS	Broadband Network Switch
BOC	Bell Operating Company
BOM	Beginning of Message
BOP	Bit Oriented Protocol
BORSCHT	Battery feed, Overvoltage protection, Ringing, Signalling, Hybrid, & Testing
BPOP	Building Point of Presence
BPS	Bits Per Second
BPV	Bipolar Violation
BRA	Basic Access Rate
BRI	Basic Rate Interface (ISDN)
BRITE	Basic Rate Interface Transmission Extension
BRT	Broadband Remote Terminal
BRZ	Bipolar Return to Zero
BSC	Base Station Controller
BSC	Binary Synchronous Communications
BSN	Backward Sequence Number
BSP	Bell System Practice
BSRF	Basic System Reference Frequency
BSS	Base Station Subsystem
BSS	Basic Service Set
BSS	Broadband Switching System
BTAG	Beginning of TAG
BTS	Base Station Transceiver
BWB	Bandwidth Balancing
C/R	Command/Response
C/R	Control/Response - indication bit
C/R Bit	Command Response Bit
CAC	Connectionless Admission Control
CAL	Customer Access Line
CAN	Campus-Area Network
CAP	Carrierless Amplitude Phase (modulated)
CAP	Competitive Access Provider
CAS	Channel Associated Signaling
CASE	Common Application Service Elements
CATV	Cable Television
CBCU	Centralized Broadband Control Unit
CBO	Continuous Bit Stream Oriented
CBQ	Class-Based Queuing
CBR	Constant Bit Rate
Cc	Committed Burst Size
CC	Call Control
CCC	Clear Channel Capability
CCH	Connections per Circuit-hr in Hundreds
CCIS	Common Channel Interoffice Signaling
CCITT	Comite Consultatif Internationale Telegraphique et Telephonique
CCM	Customer Control & Mgmt
CCR	Customer Controlled Reconfiguration
CCR	Commitment, Concurrency, & Recovery
CCS	Common Channel Signaling
CCS	Hundred Call Seconds
CCS	Common Channel Signaling
CCSA	Common Control Switching Arrangement
CCU	Common Control Unit
CD	Count Down
CDMA	Code Division Multiple Access
CDO	Community Dial Office
CDPD	Cellular Digital Packet Data
CDV	Cell Delay Variation
CE	Connection Element
CEP	Connection End Point
CEPT	Conference of European Postal Telecom
CES	Circuit Emulation Service
CEV	Controlled Environment Vault
CF	Coin First
CFA	Carrier Failure Alarm
CGA	Carrier Group Alarm
CH	Cell Header
CHTML	Compact Hyper Text Markup Language
CI	Customer Installation
CI	Continuation Identifier
CIB	CRC Indication Bit
CID	Craft Interface Device
CIR	Committed Information Rate
CIR	Cell Insertion Ratio
CIU	Communications Interface Unit
CL	Common Language
CLEC	Competitive Local Exchange Carrier
CLIR	Calling Line Identity Restriction
CLIST	Command List
CLLM	Consolidated Link Layer Mgmt
CLN	ConnectionLess Network
CLNP	ConnectionLess Network Protocol
CLNS	ConnectionLess Network Service
CLP	Cell Loss Priority (CLP Bit)
CLS	Connectionless Service
CLTS	ConnectionLess Transport Service
CMD	Circuit Mode Data
CMDR	Command Reject
CMI	Code Mark Inversion
CMIP	Common Management Info Protocol
CMIS	Common Mgmt Info Service
CMISE	Common Management Information Service Element
CMOT	CMIP over TCP/IP
CMT	Connection Management
CND	Calling Number Delivery
CNF	Confirmed
CNM	Customer/Communications Network Management
CO	Central Office/Connection Oriented Svc
COC	Central Office Connection
COCF	Connection Oriented Converge Function
CODEC	COder-DECoder
COFA	Change of Frame Alignment
CO-LAN	Central Office Local Area Network
COM	Continuation of Msg
COMPANDER	COMpressor/exPANDER
CON	Concentrator
CON	Connection Oriented Network
CONP	Connection Network Protocol
CONS	Connection-Oriented Network Services
COPS	Common Open Policy Service
CORBA	Common Object Request Broker Architecture
COS	Class of Service
COT	Central Office Terminal
CP	Cell Payload
CP	Customer Premises
CP	Central Processor
CPCS	Common Part Convergence Sublayer
CPE	Customer Premise Equipment
CPI	Computer-PBX Interface
CPI	Common Parti Indicator
C-PLANE	Control Plane
CPMI	Customer Proprietary Network Info
CPN	Customer Premises Node
CPNI	Customer Proprietary Network Information
CPP	Calling Party Pays
CPS	Customer Premises System
CPU	Central Processor Unit
CR	Call Reference
CRC	Cyclic Redundancy Check
CRF	Connection Related Function
CRIS	Customer Records Info System
CRS	Cell relay Service
CRV	Call Reference Value
CRV	Coding Rule Violation
CS	Convergence Sublayer
CSA	Canadian Standards Association
CSA	Carrier Service Area
CSAP	Core Service Access Point
CSC	Common Signaling Channel
CSDU	Core Service Data Unit
CSH	Convergence Sublayer Header
CSI	Convergence Sublayer Indicator
CSMA/CD	Carrier Sense Multiple Access/Collision Detect
CSPDN	Circuit Switched Public Data Network
CS-PDU	Convergence Layer PDU
CST	Convergence Sublayer Trailer
CSU	Channel Service Unit
CT	Channel Termination
CT	Computer Telephony
CTS	Clear to Send
CTS	Customer Test Service
CU	Channel Unit
CUG	Closed User Group
CV	Coding Violation
CVSD	Continuously Variable Slope Delta Modulation
CWC	Center Weighted Control
CXR	Carrier
D	Delta or Data
D/I	Drop and Insert
D3	Third generation channel bank (24 channels on T1)
D4	Fourth generation channel bank (48 channels on 2T1's or T1C)
DA	Destination Address
DACS	Digital Access & Cross-Connect System
DAS	Dual Attached Station
DASD	Direct Access Storage Device
DASS	Digital Access Signaling System
DAVIC	Digital Audio Video Council
dB	deciBell
dBm	dB relative to one milliwatt
DBN	Dial-Back Number
dBrn	dB relative to noise
dBrnc	dB relative to noise (C-Notch or C-Message)
DBS	Direct Broadcast Satellite
DCA	Distributed Comm Channel
DCB	Digital Channel Bank
DCC	Data Comm Channel
DCC	Digital Cross Connect
DCC	Direct Connect Card
DCCX	Direct Circuit Control Exchange
DCE	Data Circuit-terminating Equipment
DCE	Data Communications Equipment
DCF	Distributed Coordination Function
DCN	Data Communications Network
DCS	Digital Cross-connect System
DDCMP	Digital Data Comm Msg Protocol
DDD	Direct Distance Dialing
DDS	Dataphone Digital Service (registered trademark of AT&T C0.)
DDS	Digital Data Service
DDS/SC	Digital Data Svc w/ Secondary Channel
DDSD	Delay Dial Start Dial
DE	Discard Eligibility
DF	Distributing Frame
DFC	Data Flow Control
DFL	Distributed Feedback Laser
DFRI	Datacom Reference Frame Input
DHCP	Dynamic Host Configuration Protocol
DID	Directed Inward Dialing
DL	Data Link
DLC	Data Link Connection
DLC	Digital Loop Carrier
DLCI	Data Link Connection Identifier
DM	Disconnected Mode
DMI	Digital Multiplex Interface
DMPB	Digital Multipoint Bridging
DMPU	Derived MAC Protocol Data Unit
DMS	Digital Multiplex System
DMT	Discrete Multitone
DN	Directory Number
DNIC	Data Network Identification Code
DNIC	Data Network Interface (2B+D ISDN)
DNIC	Data Network Interface Circuit
DNIS	Dialed Number Identification Service
DNS	Domain Name System
DOCSIS	Data Over Cable Service Interface Specification
DoV	Data Over Voice
DP	Dial Pulse
DPA	Distributed Power Architecture
DPBX	Digital Private Brance Exchange
DPC	Destination Signal Transfer Point Code
DPCM	Differential Pulse Code Modulation
DPDU	Data (link) Protocol Data Unit
DPL	Digital Power Line
DPNSS	Digital Private Network Signaling System
DPO	Dial Pulse Originate
DPT	Dial Pulse Terminate
DPT	Dynamic Packet Transport
DQDB	Distributed Queue Dual Bus
DS-0	Digital Signal level Zero (64Kbps data/voice channel)
DS-1	Digital Signal Level One (1.544 Mbps
DS-2	Digital Signal Level Two (6.312 Mbps
DS-3	Digital Signal Level Three (44.736 Mbps
DSAP	Destination Service Access Point
DSG	Default Slot Generator
DSI	Digital Speech Interpolation
DSL	Digital Subscriber Line
DSLAM	Digital Subscriber Line Access Multiplexer
DSP	Digital Signal Processor
DSP	Display System Protocol
DSS1	D-channel Signaling System 1
DSSS	Direct Sequence Spread Spectrum
DSU	Digital Service Unit
DSU	Data Service Unit
DSX	Digital Signal Cross-connect
DT	Data Transfer
DTAU	Digital Test Access Unit
DTE	Data Terminal Equipment
DTF	Dial Tone First
DTF	Digital Transmission Facility
DTI	Digital Trunk Interface
DTMF	Dual Tone Multiple Frequency
DTR	Data Terminal Ready
DTS	Digital Terminal Systems
DTU	Data Terminal Unit
DTX-1	Digital Sig Cross-connect - Level 1 (DS1)
DUP	Data User Part
DVI	Digital Video Interactive
DVI	Digital Video Interleaved
DWDM	Dense Wavelength Division Multiplexing
DX	Duplex
DXC	Digital Cross Connect
DXI	Data Exchange Interface
E-1	European T-1" (DS-1) at 2.048 Mbps"
EA	Extended Address (bit)
EAI	Enterprise Application Integration
EBCDIC	Extended Binary Coded Decimal Information Code
EC	Echo Canceling
EC	Error Correction
ECC	Error Checking Code
ECN	Explicit Congestion Notification
EC-n	Electrical Carrier (e.g., EC-1)
ECSA	Exchange Carriers Standards Assoc
ED	Ending Delimiter
EDFA	Erbium-Doped Fiber Amplifier
EDI	Electronic Data Interchange
EDSX	Electronic Digital Signal Cross-Connect
EFCI	Explicit Forward Congestion Indication
EFD	Event Forwarding Discriminator
EFS	Error Free Seconds
EGP	Exterior Gateway Protocol
ELEC	Ethernet Local Exchange Carrier
ELFEXT	Equal Level Far End Crosstalk
EM	Element Manager
EMI	Electromagnetic Interference
EML	Element Management Layer
EMS	Element Management System
ENQ	Enquiry
EOC	Embedded Operations Channel
EOC	Embedded Overhead Channel
EOM	End of Message
EOT	End of Transmission
EPSCS	Enhanced Private Switch Controlled System
EPSCS	Enhanced Pvt Switched Comm Service
ERL	Echo Return Loss
ERM	Explicit Rate Marketing
ERS	Errored Second
ES	Errorred Second
ES	End System
ESB	Errored Second type B
ESF	Extended Superframe
ESFDL	Extended Super Frame Data-Link
ESG	Enhanced Service Gateway
ESS	Electronic Switching System
ET	Exchange Termination
ETAG	End of TAG
ETN	Electronic Tandem Network
ETO	Equalized Transmit Only
ETSI	European Telecommunications Standards Institute
ETX	End of Text
EXZ	Excess Zeros
F	Final/Framing
FAD	Frame Assembler/Disassembler
FADU	File Access Data Unit
FAS	Frame Alignment Signal
FAW	Frame Alignment Word
FB	Framing Bit
FBWA	Fixed Broadband Wireless Access
FC	Frame Control
FCC	Federal Communications Commission
FCOT	Fiber optic Central Office Terminal
FCS	Frame Check Sequence
FDDI	Fiber Distributed Data Interface
FDI	Feeder Distribution Interface
FDL	Facilities Data Link
FDM	Frequency Division Multiplexing
FDMA	Frequency Division Multiple Access
FE	Frame synchronization bit error Event
FEA	Far End Alarm
FEAC	Far End Alarm and Control
FEBE	Far End Block Error
FEBE-f	Far End Block Error Count - fast data
FEBE-i	Far End Block Error Count - interleaved data
FEC	Forward Error Correction
FECC-f	Forward Error Correction Count - fast data
FECC-i	Forward Error Correction Count - interleaved data
FECN	Forward Explicit Congestion Notification
FELB	Far End Loop Back
FEP	Front-End Processor
FERF	Far End Receive Failure
FEXT	Far-End Cross Talk
FGA	Feature Group A
FH	Frame Handler
FHSS	Frequency Hopping Spread Spectrum
FI	Facility Identification
FIB	Forward Indicator Bit
FIC	Frame Identification Code
FID	Format IDentification
FIFO	First In/First Out
FISU	Fill-In Signaling Unit
FITL	Fiber In The Loop
FLL	Fixed Loss Loop
FO	Fiber Optic
FOTS	Fiber Optical Transmission System
FPDU	Frame relay Protocol Data Unit
FPS	Framing Pattern Sequence
FR	Frame Relay
FR PVC	Frame Relay Permanent Virtual Connection
FRAD	Frame Relay Assembler/Disassembler
FRAD	Frame Relay Access Device
FRBS	Frame Relay Bearer Service
FRF-LMI	Frame Relay Forum - Local Management Interface
FRI	Frame Relay Interface
FRS	Frame Relay Service
FRS	Frame Relay Switch
FRSS	Frame Relay Switching System
FR-SSCS	Frame Relay Service Specific Convergence Sub-layer
FS	Failed Second
FS	Frame Status
FSK	Frequency Shift Keying
FSN	Forward Sequence Number
FT-1	Fractional T-1
FTAM	File Transfer, Access, & Mgmt
FTP	File Transfer Protocol
FTSC	Federal Telecommunications Standards Committee
FTTC	Fiber to the Curb
FTTH	Fiber to the House
FTTL	Fiber to the Loop
FTTN	Fiber to the Neighborhood
FUNI	Frame (relay) User Network Interface
FX	Foreign Exchange
FXO	Foreign Exchange Office
FXS	Foreign Exchange Subscriber
FXS	Foreign Exchange Station
GBS	General Broadcast Server
GFC	Generic Flow Control
GFI	General Format Identifier
GGP	Gateway to Gateway Protocol
GGSN	Gateway GPRS Support Node
GNE	Gateway Network Element
GOS	Grade of Service
GOSIP	Government Open System Interconnection Profiles
GPRS	General Packet Radio Service/System
GPS	Global Positioning System
GS	Ground Start
GSM	Global System for Mobile (telecommunications)
GTXC	Global Telephone Exchange Carrier
HCDS	High Capacity Digital Service
HCM	High Capacity Multiplexing
HCS	Header Check Sequence
HCV	High Capacity Voice
HDB3	High-Density Bipolar Three-Bit substitution
HDLC	High-level Data Link Control
HDML	Handheld Device Markup Language
HDSL	High bit-rate Digital Subscriber Line
HDSL2	High bit-rate Digital Subscriber Line w/ 6dB noise margin
HDT	Host Digital Terminal
HDTV	High Density TeleVision
HE	Header Extension
HEC	Header Error Control
HEL	Header Extension Length
HFC	Hybrid Fiber Coax
HIPPI	HIgh-speed Peripheral Parallel Interface
HLF	Higher Layer Functions
HLM	Heterogeneous LAN Mgmt
HLPI	High Layer Protocol Identifier
HLR	Home Location Register
HOPS	Horizontally Oriented Protocol Structure
HPAD	Host Packet Assembler-Disassembler
HRC	Hybrid Ring Control
HSCWD	High Speed Circuit Switched Data
HSSI	High Speed Serial Interface
HTML	Hypertext Markup Language
HTTP	Hypertext Transfer Protocol
HTU	HDSL Transmission Unit
HTU-C	HDSL Transmission Unit - Central Office
HTU-R	HDSL Transmission Unit - Remote
IA	Integrated Access
IAB	Internet Advisory Board
IAD	Integrated Access Device
IAM	Initial Address Message
IAT	Integrated Access Terminal
IBEX	Info Business Exchange - www.ibexsystems.com
IBR	Intermediate Bit Rate
ICB	Individual Case Basis
ICCF	Interexchange Carrier Compatibility Forum
ICI	InterCarier Interface
ICIP	Inter-Carrier Interface Protocol
ICL	Inserted Connection Loss
ICMP	Internet Control Message Protocol
IC-POT	Interexchange Carrier-Point of Termination
ID	Identification
IDCP	Internet Device Control Protocol
IDF	Intermediate Distribution Frame
IDLC	Integrated Digital Loop Carrier
IDS	Intrusion Detection System
IDT	Information Distribution Company
IDT	Integrated Digital Terminal
IDU	Interface Data Unit
IE	Information Element
IEC	Interexchange Carrier
IEEE	Institute of Electrical and Electronics Engineers
IETF	Internet Engineering Task Force
I-Frame	Information Frame
IG	Interface Group
IGP	Interior Gateway Protocol
IGRP	Interior Gateway Routing Protocol
IIME	Intra-network, Inter-SSS Mapping Entity
IIS	Internet Information Server
IISP	Interim Interswitch Signaling Protocol
ILEC	Incumbent/Independent Local Exchange Carrier
ILMI	Interim Local Management Interface
ILRM	Interim Local Management Interface
IMP	Interface Message Processors
IMPDU	Initial MAC Protocol Data Unit
IMS	Interactive Multimedia Server
IMSI	International Mobile Subscriber Identity
IN	Intelligent Network
INA	Information Network Architecture
IND	Indication
INE	Intelligent Network Element
INE	Intelligent Network Element
IO	Inter-Office
IOC	Inter-Office Channel
IOC	Inter-Office Channel
IP	Intelligent Peripheral
IP	Internet Protocol
IPM	Interpersonal Messaging System
IPS	Instructions Per Second
IPSec	Internet Protocol Security
IPX	Internet Packet eXchange
IS	Intermediate System
ISDN	Integrated Services Digital Network
ISDNUP	Integrated Services Digital Network User Part
ISDU	Isochronous Service Data Unit
ISID	Idle Signal Identification
ISM	Instrumentation, Scientific, and Medical
ISO	Intn'l Standards Organization
ISP	Internet Service Provider
ISSI	Inter-Switching System Interface
ISSIP	Inter-Switching System Interface Protocol
ISSP	Interim Interswitch Signaling Protocol
ISUP	ISDN User Part
ITFS	Instructional Television Fixed Services
ITU	International Telecommunication Union
IWF	InterWorking Function
IWU	InterWorking Unit
IXC	IntereXchange Carrier
JIS	Jurisdictional Interstate Service
JPEG	Joint Picture Expert Group
L2-PDU	Layer 2 Protocol Data Unit
LAN	Local Area Network
LAN PHY	LAN Physical Layer
LANE	LAN Emulation
LANE	Local Area Network Emulation
LAPB	Link Access Protocol Balanced
LAPD	Link Access Procedure D channel
LAPF	Link Access Protocol Frame relay
LATA	Local Access & Transport Area
LAW	Local Area Wireless
LBO	Line Build Out
LCA	Line Circut Address
LCGN	Logical Channel Group Number
LCI	Logical Connection Identifier
LCN	Logical Channel Number
LCP	Link Control Protocol
LCS	Lan Configuration Server
LDAP	Lightweight Directory Access Protocol
LDC	LATA Distribution Channel
LDM	Limited Distance Modem
LDS	Local Digital Switch
LEC	Lan Emulation Client
LEC	Local Exchange Carrier
LEN	Local Exchange Node
LEN	Line Equipment Number
LES	Lan Emulation Server
LET	Line Equipment Transfer
LFC	Local Functional Capabilities
LGE	Loop- or Ground-Start Exchange
LGS	Loop- or Ground-Start Subscriber
LI	Length Indicator
LIDB	Line Information Database
LIU	Line Interface Unit
LLB	Line Loop Back
LLC	Low Layer Compatibility
LLC	Logical Link Connection
LLC	Logical Link Control
LLDL	Low Level Data Link
LMC	Loop Maintenance Center
LMDS	Local Multipoint Distribution Service
LME	Layer Management Entity
LMI	Local Mgmt Interface
LMOS	Loop Maintenance Operations System
LMU	Line Monitor Unit
LNNI	Lan emulation Network-to-Net Interface
LNP	Local Number Portability
LOF	Loss Of Frame
LOH	Line Overhead
LOP	Loss Of Pointer
LOP-L	Loss Of Pointer - Line
LOP-P	Loss Of Pointer - Path
LOP-V	Loss Of Pointer - Virtual
LOS	Line Of Sight
LOS	Loss Of Signal
LOSW	Loss Of Synchronous Word
LPC	Linear Predictive Coding
LPDP	Local Policy Decision Point
LPU	Line Protection Unit
LRB	Loop Reverse Battery
LRN	Local Routing Number
LS	Loop Start
LSAP	Link Service Access Point
LSB	Least Significant Bit
LSMS	Local Service Management System
LSOA	Local Service Order Administration
LSSU	Link Status Signaling Unit
LSSU	Link Status Signal Unit
LT	Line Termination
LTE	Line Terminating Equipment
LTE	Line Terminal Equipment
LU	Logical Unit
LULT	Line Unit/Line Termination
LUNI	Lan emulation UNI
L-UNI	Lan emulation User Network Interface
LUNT	Line Unit Network Termination
LXT	Local Exchange Terminal
MAC	Media Access Control
MAC	Media Access Control
MAN	Metropolitan Area Network
MAN	Metropolitan Area Network
MAPDU	Management Application Protocol Data Unit
MAU	Media/Multiple Access Unit
MCU	Multiplexer Control Unit
MDCP	Media Device Control Protocol
MDF	Main Distribution Frame
MDS	Multipoint Distribution Service
MDTP	Media Device Transport Protocol
MF	Multiple Frequency
MFAS	Multi-Frame Alignment Signal
MGCP	Media Gateway Control Protocol
MGCP	Media Gateway Control Protocol
MIB	Management Information Base
MID	Muliplex Identifier
MID	Message Identifier
MIME	Multipurpose Internet Mail Extension
MIPS	Million Instructions Per Second
MIS	Mgmt Info System
MIS	Mgmt Info System
MIX	Multimedia Internet Exchange
MLHG	Multi-Line Hunt Group
MLM	Multi-Longitudinal Mode
MLT	Metalic Loop Test
MMDS	Multichannel Multipoint Distribution Service
MMDS	Multimedia Data Services
MMDX	Multimedia Data Services
MO	Managed Object
MOC	Managed Object Classes
MPEG	Motion Picture Expert Group
MPL	Maximum Packet Lifetime
M-PLANE	Management Plane
MPLS	Multi-Protocol Label Switching
MPLS	Multi-Protocol Layer Switching
MPoA	Multiple Protocol over ATM
MRF	Multilink Frame Relay
MSA	Metropolitan Statistical Area
MSDM	Multipoint Substrate Data Mux
MSO	Multiple Service Operator
MSP	Maintenance Svc Provider
MSS	MAN Switching System
MSS	MAN Switching System
MSU	Message Signaling Unit
MTAU	Metalic Test Access Unit
MTP	Message Transfer Part
MTS	Message Telephone System
MTSO	Mobile Telephone Switching Office
MTU	Max Trans Unit
MTU	Max Trans Unit
MUB	MultiUse Bearer service
MUX	Multiplexer
MVC	Multicast Virtual Circuit
MVNO	Mobile Virtual Network Operator