|
Acronym
|
Meaning
|
Primary
Applicability[4]
|
|
|
Acknowledgement
|
Transport and other layers
|
||
|
Access control list
|
Security, application layer
|
||
|
Asymmetric digital subscriber line
|
Telecom
|
ITU-T G.992.5 Annex M, for
example
|
|
|
Advanced Encryption Standard
|
Security
|
||
|
American National Standards
Institute
|
Organization
|
||
|
Address Resolution Protocol
|
Link layer
|
||
|
Asynchronous Transfer Mode
|
Telecom
|
||
|
Border Gateway Protocol (routing
protocol)
|
Application layer, Routers
|
||
|
Basic service set (Wi-Fi)
|
Wireless
|
||
|
Category (e.g. CAT-5 cable)
|
Physical layer
|
||
|
Standards organization that has
been replaced by ITU-T
|
Organization
|
||
|
Challenge-Handshake Authentication
Protocol (PPP)
|
Security, telecom
|
||
|
Classless Inter-Domain Routing
|
Architecture
|
||
|
Committed Information Rate (Frame
Relay)
|
Telecom
|
||
|
Command line interpreter
|
Hardware
|
Catalyst
6500 Series Command Reference, 7.6, for example
|
|
|
cops
|
-
|
||
|
Customer premises equipment
|
Telecom
|
||
|
Cyclical redundancy check
|
Link and other layers
|
24 References here.
|
|
|
Cyclical redundancy check (X.25,
HDLC)
|
Link layers
|
Reference on CRC page.
|
|
|
Carrier sense multiple access /
collision avoidance
|
Wireless
|
||
|
Carrier sense multiple access /
collision detection
|
Physical layer
|
||
|
Channel service unit / data
service unit
|
Telecom
|
||
|
Data communications equipment
|
Telecom
|
||
|
Digital Equipment Corporation
|
Organization
|
Purchased by Compaq in 1998.
Merged with Hewlett-Packard 2002.
|
|
|
Data Encryption Standard (obs. See
AES)
|
Security
|
||
|
Dynamic Host Configuration
Protocol
|
Application layer, Internet Layer
|
RFC 2131 and others
|
|
|
Domain Name System
|
Application layer
|
Over 30 RFCs here.
|
|
|
Dynamic random-access memory
|
Hardware
|
||
|
Digital Subscriber Line
|
Telecom
|
||
|
Digital Subscriber Line Access Multiplexor
|
Telecom
|
||
|
Data Terminal Equipment
|
Telecom
|
||
|
Ethernet Hardware Address (MAC
address)
|
Link layer
|
||
|
Electronics Industry Alliance
|
Organization
|
||
|
Enhanced Interior Gateway Routing
Protocol
|
Internet Layer
|
||
|
End Of Frame (HDLC, etc.)
|
Link layer
|
||
|
Extended service set (Wi-Fi group)
|
Wireless
|
||
|
Federal Communications Commission
(US)
|
Organization
|
||
|
Frame check sequence (Ethernet)
|
Link layer
|
||
|
Fiber Distributed Data Interface
|
Link layer
|
American
National Standards Institute X3T9.5 (now X3T12), ISO/IEC
9314-x
|
|
|
File Transfer Protocol
|
Application layer
|
RFC 959 and others
|
|
|
Gigabit interface converter
|
Hardware
|
||
|
Gigabit per second
|
Physical layer
|
||
|
High-level Data Link Control
|
Link layer
|
||
|
HyperText Transfer Protocol
|
Application layer
|
||
|
HyperText Transfer Protocol Secure
|
Transport and other layers
|
||
|
Internet Assigned Number Authority
|
Organization
|
||
|
Internet Control Message Protocol
|
Internet Layer
|
||
|
Intermediate distribution frame
|
Physical layer
|
||
|
Intrusion Detection System
|
Security
|
||
|
Commission Electrotechnique
Internationale (French)
|
Organization
|
||
|
Institute for Electrical and
Electronic Engineers
|
Organization
|
||
|
Internet Engineering Task Force
|
Organization
|
||
|
Internet Message Access Protocol
|
Application layer
|
||
|
Internet Protocol
|
Internet Layer
|
||
|
Intrusion prevention system
|
Security
|
||
|
Intermediate System to
Intermediate System (routing protocol)
|
Internet Layer
|
||
|
Integrated Services Digital
Network
|
Telecom
|
||
|
Internet service provider
|
Telecom
|
||
|
International Telecommunications
Union
|
Organization
|
||
|
Kilobit per second
|
Physical layer
|
||
|
Local area network
|
Link and other layers
|
||
|
Link Access Procedure, Balanced
(x.25)
|
Telecom
|
||
|
Link-access procedure for frame
relay
|
Telecom
|
||
|
Logical link control
|
Link layer
|
||
|
Media access control
|
Link layer
|
IEEE Std 802.3 and 802.11, for example
|
|
|
Metropolitan area network
|
Telecom
|
||
|
Megabits per second
|
Physical layer
|
||
|
MC
|
Multiple choice
|
IT Professional Certification
|
|
|
Main distribution frame
|
Physical layer
|
Glossary
See also Structured cabling
|
|
|
Management information base (SNMP)
|
Application layer
|
||
|
Multiprotocol Label Switching
|
network technology
|
||
|
Maximum Transmission Unit
|
Multiple layers
|
||
|
Network access control
|
Link and other layers
|
||
|
Network Address Translation
|
Internet Layer
|
||
|
Non-Broadcast Multiple Access
(e.g. Frame Relay ATM)
|
Telecom
|
See ATM, Frame
Relay and X.25,
for examples.
|
|
|
Network Interface Card
|
Physical layer
|
||
|
Non-return-to-zero
|
Physical layer
|
||
|
Non-return to zero inverted
|
Physical layer
|
||
|
Non-volatile RAM
|
Hardware
|
Sample vendor data here
|
|
|
Open System Interconnect (joint
ISO and ITU standard)
|
Organization
|
ISO/IEC
9594-5:2005 Open Systems Interconnection Protocol Specifications
|
|
|
Open Shortest Path First (routing
protocol)
|
Internet Layer
|
||
|
Organization Unique Identifier
|
Link and other layers
|
||
|
Password authentication protocol
|
Security
|
||
|
Port address translation
|
Internet Layer
|
||
|
Personal computer (host)
|
Hardware
|
||
|
Pulse-code modulation
|
Physical layer
|
||
|
Protocol data unit (such as
segment, packet, frame, etc.)
|
Multiple layers
|
||
|
Post Office Protocol, version 3
|
Application layer
|
||
|
Point of presence
|
Telecom
|
||
|
Power-on self test
|
Hardware
|
Cisco
Catalyst 2800 User Guide, for example
|
|
|
Plain old telephone service
|
Telecom
|
||
|
Point-to-point Protocol
|
Telecom
|
||
|
Point-to-Point Tunneling Protocol
|
Telecom
|
||
|
Public Telephone and Telegraph
|
Telecom
|
||
|
Per-VLAN Spanning Tree
|
Link layer
|
||
|
Remote Authentication Dial-In User
Service
|
Security
|
||
|
Random Access Memory
|
Physical layer
|
||
|
Reverse ARP
|
Link layer
|
||
|
Request for Comments
|
Multiple layers
|
||
|
Routing Information Protocol
|
Internet Layer
|
RFC 2453, for RIP version 2
|
|
|
Run-Length Limited
|
Physical layer
|
RLL is used in a wide range of encodings.
|
|
|
Read-Only Memory
|
Hardware
|
||
|
Rapid Spanning Tree Protocol
|
Link layer
|
IEEE 802.1w - Rapid
Reconfiguration of Spanning Tree
|
|
|
Real-time Transport Protocol
|
Application layer
|
||
|
Synchronous Data Link Control
|
Link layer
|
||
|
Start-of-frame delimiter
(Ethernet, HDLC, etc.)
|
Link layer
|
IEEE 802.3 (Ethernet), or RFC 2687 (HDLC), for examples
|
|
|
Small form-factor pluggable
|
Hardware
|
||
|
Secure HTTP (rarely used)
|
Transport and other layers
|
||
|
Serial Line ARP (Address
Resolution Protocol)
|
Link and other layers
|
||
|
Serial Line Internet Protocol
(obs.)
|
Telecom
|
||
|
Simple Mail Transfer Protocol
|
Application layer
|
||
|
Systems Network Architecture (IBM)
|
Multiple layers
|
||
|
SubNet Access Protocol
|
Link layer
|
||
|
Simple Network Management Protocol
|
Application layer
|
||
|
Start of frame
|
Link layer
|
IEEE 802.3 (Ethernet), or RFC 2687 (HDLC), for examples
|
|
|
Static random access memory
|
Hardware
|
||
|
Secure shell
|
Application layer
|
||
|
Service set identifier (Wi-Fi)
|
Wireless
|
||
|
Spanning Tree Protocol
|
Link layer
|
||
|
Synchronization
|
Link and other layers
|
RFC 793 and many others
|
|
|
Transmission Control
Protocol/Internet Protocol
|
Transport layer
|
RFC 793 and many others
|
|
|
Time-division multiplexing
|
Physical layer
|
||
|
Trivial File Transfer Protocol
|
Application layer
|
||
|
Telecommunications Industry
Alliance
|
Organization
|
||
|
User Datagram Protocol
|
Transport layer
|
||
|
Universal Serial Bus
|
Physical and other layers
|
||
|
Unshielded twisted pair
|
Physical
|
Many versions are defined by TIA,
such as: TIA-568-B
|
|
|
Virtual circuit
|
Transport and other layers
|
||
|
Virtual local area network
|
Link layer
|
||
|
Variable-length subnet masking
|
Architecture
|
||
|
Virtual private network
|
Application layer
|
||
|
World Wide Web Consortium
|
Organization
|
||
|
Wide-area network
|
Telecom
|
||
|
Wired Equivalent Privacy
|
Wireless
|
||
|
IEEE 802.11 (Wi-Fi Alliance)
|
Wireless
|
||
|
Wi-Fi Protected Access
|
Security
|
||
|
World Wide Web
|
Architecture
|
Saturday, January 30, 2016
Acronym Information Technology
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