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Look through 1745 acronyms and abbreviations related to Technical:

• LAN — Local Area Network
• J/KG — Joules per Kilogram
• M2/S2 — Meters squared per second squared
• S2L — source-to-leaf
• XML — Extensible Markup Language
• DWDM — Dense Wavelength Division Multiplexing
• EAP-TTLS — Extensible Authentication Protocol-Tunneled Transport Layer Security
• RDF — Resource Description Framework
• FTP — File Transfer Protocol
• B2BUA — Back-To-Back User Agent
• CSMA/CD — Carrier Sense Multiple Access with Collision Detection
• E-VLAN — Ethernet Virtual Private LAN
• FCFS — First Come First Served
• ANSI — American National Standards Institute, Inc.
• MDC — Modification Detection Code
• MOBIKE — IKEv2 Mobility and Multihoming
• ATM — Automatic Teller Machine
• OEM — Original Equipment Manufacturer (usually in reference to car parts)
• MAN — Metropolitan Area Network
• ECC CDH — Elliptic Curve Cryptography Cofactor Diffie-Hellman
• ZKPP — Zero-Knowledge Password Proof
• IA_PD — Identity Association for Prefix Delegation
• S-NAPTR — Straightforward-Naming Authority Pointer
• MUA — Mail User Agent (Internet email)
• CPU — Central Processing Unit
• CPE — Customer Premises Equipment
• ARKLAMISS — ARKansas / LouisianA /MISSissippi region
• PIDF-LO — Presence Information Data Format Location Object
• S-GW — Serving Gateway
• U-PE — User-facing PE
• DUT — Device Under Test
• FIFO — First In, First Out
• PDF — Portable Document Format (created by Adobe Acrobat)
• L3VPN — Layer 3 Virtual Private Network
• S-BGP — Secure Border Gateway Protocol
• L2VPN — Layer 2 Virtual Private Network
• U-NII — Unlicensed National Information Infrastructure Devices
• G-ACH — Generic Associated Channel
• S-PMSI — Selective PMSI
• T-MPLS — Transport MPLS
• S-PE — Switching Provider Edge
• N-PE — Network-facing PE
• RAMS-T — RAMS Termination
• IP — Internet Protocol
• XNQ — eXtended Network Quality
• ISO — International Organization for Standardization
• EAP-GSPK — Extensible Authentication Protocol - Generalized Pre-Shared Key
• RANGER — Routing and Addressing in Networks with Global Enterprise Recursion
• RAMS-R — RAMS Request
• CR — Carriage Return

• FAN ELS — Fabric Address Notification Extended Link Service
• ADM — Add-Drop Multiplexer
• RF — Radio Frequency
• EDI — Electronic Data Interchange
• P2PE — Point-to-Point Emulation
• TWAMP — Two-Way Active Measurement Protocol
• RAQMON — Real-time Application Quality-of-Service Monitoring
• IA-RWA — Impairment-Aware Routing and Wavelength Assignment
• GSM — Global System for Mobile Communications
• ISP — Internet Service Provider
• BRAS — Broadband Remote Access Server
• MA/RA — Maintenance Agency/Registration Authority
• ATM — Asynchronous Transfer Mode
• 4RD — IPv4 Residual Deployment
• GUI — Graphical User Interface (goo-ey)
• CAPTCHA — Completely Automated Public Turing test to tell Computers and Humans Apart
• ADSL — Asymmetric Digital Subscriber Line
• ECDH — Elliptic Curve Diffie-Hellman
• API — Application Programming Interface
• DODAG — Destination-Oriented Directed Acyclic Graph
• ASCII — American National Standard Code for Information Interchange
• SMTP — Simple Mail Transfer Protocol
• CUG — Closed User Group
• EIRP — Equivalent Isotropic Radiated Power
• ABI — Application Binary Interface
• SLA — Service Level Agreement
• PDA — Personal Digital Assistant
• DDOS — Distributed Denial of Service
• UDP — User Datagram Protocol (FDDI related)
• VPN — Virtual Private Network (ATM)
• GPS — Global Positioning System (ex-NAVSTAR)
• HTTP — Hypertext Transfer Protocol
• CGI — Common Gateway Interface
• ACE — Access Control Entry
• FROPA — Frontal Passage
• CSIRT — Computer Security Incident Response Team
• EOF — End Of File
• NFS — Network File System
• AEAD — Authenticated Encryption with Associated Data
• IVR — Interactive Voice Response (telephone technology)
• FLUTE — File Delivery Over Unidirectional Transport
• SSL/TLS — Secure Socket Layer/Transport Layer Security
• AES — Advanced Encryption Standard
• WDM — Wavelength Division Multiplexing (fiber optics)
• PDH — Plesiochronous Digital Hierarchy
• DES — Data Encryption Standard
• IETF — Internet Engineering Task Force
• PEP — Policy Enforcement Point
• PGP — Pretty Good Privacy (encryption)
• WEP — Wired Equivalent Privacy

• WAN — Wide Area Network
• QOS — Quality of Service
• GPRS — General Packet Radio Service
• MSS — Maximum Segment Size (TCP/IP)
• BNG — Broadband Network Gateway
• FMIPV6 — Fast Handovers for Mobile IPv6
• KEK — Key Encryption Key (COMSEC Key)
• POP — Point Of Presence (Internet)
• CONUS — Continental United States (48 Contiguous States and DC)
• DARPA — Defense Advanced Research Projects Agency (US)
• OCR — Optical Character Recognition
• MMS — Multimedia Messaging Service
• DNS — Domain Name System
• ROADM — Reconfigurable Optical Add/Drop Multiplexer
• PNG — Portable Network Graphics (graphic file standard/extension)
• DHCP — Dynamic Host Configuration Protocol
• ACL — Access Control List
• NIC — Network Interface Card
• AAC — Advanced Audio Coding
• SCSI — Small Computer System Interface
• ISDN — Integrated Services Digital Network
• 6LBR — 6LoWPAN Border Router
• DSA — Digital Signature Algorithm
• EBCDIC — Extended Binary Coded Decimal Interchange Code (pronounced Eb-see-dik) (cf. BCD)
• SMIL — Synchronized Multimedia Integration Language
• RSAES-OAEP — RSA Encryption Scheme - Optimal Asymmetric Encryption Padding
• FFT — Fast Fourier Transform
• FQDN — Fully Qualified Domain Name
• DSL — Digital Subscriber Line
• DTLS — Datagram Transport Layer Security
• NIST — National Institute of Standards and Technology
• ADS — Astrophysics Data System
• RNC — Radio Network Controller
• DTE — Data Terminal Equipment
• ASP — Application Service Provider
• UTC — Coordinated Universal Time
• AC — Access Control
• IMAP — Internet Message Access Protocol
• LUN — Logical Unit Number
• UI — User Interface
• LMP — Link Management Protocol
• ITU — International Telecommunication Union
• GCM — Galois/Counter Mode
• BSSID — Basic Service Set Identifier
• SQL — Structured Query Language
• TCP — Transmission Control Protocol
• SOHO — Small Office Home Office
• ARP — Address Resolution Protocol (ATM)
• CCMP — Counter Mode with CBC-MAC Protocol
• ISAKMP — Internet Security Association and Key Management Protocol

• MVRP — Multiple VLAN Registration Protocol
• USB — Universal Serial Bus
• EAP — Extensible Authentication Protocol
• DTX — Discontinuous Transmission
• CHAP — Challenge Handshake Authentication Protocol (ATM)
• RPC — Remote Procedure Call
• LLDP-MED — Link Layer Discovery Protocol-Media Endpoint Discovery
• NSF — National Sanitation Foundation
• CLI — Command line Interface (Cabletron)
• HKDF — HMAC-based Key Derivation Function
• CN — Common Name
• CRL — Certificate Revocation List
• W3C — World Wide Web Consortium
• ECDSA — Elliptic Curve Digital Signature Algorithm
• BRI — Basic Rate Interface
• SMS — Short Message Service
• AAA — authentication, authorization, and accounting
• PBKDF2 — Password-Based Key Derivation Function 2
• CDF — Cumulative Distribution Function
• OUI — Organizationally Unique Identifier
• BW — Bandwidth
• FDDI — Fiber Distributed Data Interface
• CAPE — Convective Available Potential Energy
• BECN — Backward Explicit Congestion Notification
• ICMP — Internet Control Message Protocol
• IANA — Internet Assigned Numbers Authority
• CRC — Contrôle de Redondance Cyclique (French: Cyclic Redundancy Check)
• OSI — Open Systems Interconnection (iso Standard)
• DCOM — Distributed Component Object Model
• BER — Bit-Error Rate
• CORBA — Common Object Request Broker Architecture
• GMT — Greenwich Mean Time (Zulu)
• SSID — Service set identifier (Wi-Fi)
• ASN — Autonomous System Number
• MAC — Message Authentication Code
• DUNS — Data Universal Numbering System
• NSP — Network Service Provider
• RISC — Reduced Instruction Set Computer
• JSON — JavaScript Object Notation
• CBC — cipher block chaining
• OSS — Operational Support System
• IMEI — International Mobile Equipment Identity
• FF — Fixed-Filter
• PSTN — Public Switched Telephone Network
• FCS — Frame check sequence (Ethernet)
• SHA — Secure Hash Algorithm
• GRE — Generic Routing Encapsulation
• S/MIME — Secure/Multipurpose Internet Mail Extensions
• OS — Operating System
• LCP — Link Control Protocol

• AMI — Advanced Metering Infrastructure
• NI — Named Information
• FSM — Finite State Machine
• PBX — Private Branch eXchange (company phone system)
• EVS — Extended-Vendor-Specific
• URI — Uniform Resource Identifier
• PDU — Protocol data unit (such as segment, packet, frame, etc.)
• BS — Base Station
• TPDU — Transport Protocol Data Unit
• ECC — Elliptic Curve Cryptography
• MAX — Maximum
• IR — Infrared
• PPP — Point-to-Point Protocol
• IFF — If and Only If
• CDMA — Code Division Multiple Access (voice/data transmission)
• WAP — Wireless Application Protocol
• MS — Mobile Station
• SAVPF — Secure Audio-Visual Profile with Feedback
• OSPF — Open Shortest Path First (ATM)
• SNMP — Simple Network Management Protocol (ATM)
• ANDSF — Access Network Discovery and Selection Function
• AS — Autonomous System
• TTL — Time To Live
• UAS — Unavailable Seconds
• HTTPS — HyperText Transfer Protocol Secure
• DCE — Distributed Computing Environment
• MOS — Model Output Statistics
• DIT — Directory Information Tree
• XMPP — Extensible Messaging and Presence Protocol
• RMS — root mean square (preferred over "RMS")
• OU — Organizational Unit
• TCAM — Ternary Content-Addressable Memory
• CERT — Computer Emergency Response Team
• MIC — Message Integrity Check
• DOM — Document Object Model
• RIP — Routing Information Protocol
• MS — Message Store
• HDLC — High-Level Data Link Control
• SVG — Scalable Vector Graphics
• SN — Sequence Number
• PSD — Power Spectral Density
• MOS — Mean Opinion Score
• DSP — Digital Signal Processor
• HSM — Hardware Security Module
• RPL — Routing Protocol for Low-Power and Lossy Networks
• MN — Mobile Node
• SNR — Signal-to-Noise Ratio
• NAS — Network Access Server
• TS — Transport Stream
• TLS — Transport Layer Security

• RTP — Real-Time Transport Protocol
• EDCA — Enhanced Distributed Channel Access
• EF — Expedited Forwarding
• 3G — Third Generation mobile phone network
• CDN — Content Delivery Network
• IOS — Internetwork Operating System
• FRZLVL — FReeZing LeVeL
• PVC — Permanent Virtual Circuit (ATM)
• LLQC — Last Listener Query Count
• RSVP — Resource Reservation Protocol (Internet)
• IS — Intermediate System
• MTA — Mail Transfer Agent
• OFDM — Orthogonal Frequency Division Multiplexing
• IFG — Inter-Frame Gap
• CA — Certificate Authority
• GVRP — Generic VLAN Registration Protocol
• IAP — Internet Access Provider
• ECN — Explicit Congestion Notification
• RAN — Radio Access Network
• MAC — Media Access Control
• ACARS — Aircraft Communications Addressing and Reporting System
• TED — Traffic Engineering Database
• SSM — Source-Specific Multicast
• MDA — Mail Delivery Agent
• OTN — Optical Transport Network
• BGP — Border Gateway Protocol (routing protocol)
• SOAP — Simple Object Access Protocol
• DCVA — Differential Cyclonic Vorticity Advection (meteorology)
• 6CO — 6LoWPAN Context Option
• LDAP — Lightweight Directory Access Protocol (pronounced Ell-dap)
• MIB — Management Information Base (ATM)
• RSASSA-PSS — RSA Probabilistic Signature Scheme
• VOIP — Voice Over IP (Internet Protocol)
• AIS — Alarm Indication Signal
• OASIS — Organization for the Advancement of Structured Information Standards
• DDP — Device Discovery Protocol
• FTTH — Fiber To The Home
• SPI — Security Parameter Index
• NIC — Network Information Center
• IPX — Internetwork Packet Exchange
• GMII — Gigabit Media Independent Interface
• MDNS — Multicast DNS
• AU — Audio Unit
• RTS — Request To Send
• 3PCC — Third Party Call Control
• AS — Applicability Statement
• BCP — Best Current Practice
• VCC — Virtual Channel Connection (ATM)
• IF — Intermediate Frequency
• CIA — Confidentiality, Integrity and Availability

• VOD — Video On Demand
• WG — Working Group
• PTM — Packet Transfer Mode
• DOS — Denial Of Service
• SDH — Synchronous Digital Hierarchy (ATM)
• SCTP — Stream Control Transmission Protocol
• LOWPAN — Low-Power Wireless Personal Area Network
• POTS — Plain Old Telephone Service (FCW)
• ASR — Automatic Speech Recognition
• UE — User Equipment
• LMTP — Local Mail Transfer Protocol
• FR — Frame Relay
• AS — Authentication Service
• DA — Destination Address
• GPL — General Public License
• UML — Unified Modeling Language (Object Management Group, OMG)
• NIS — Network Information Service
• TE — Traffic Engineering
• MTA — Mail Transport Agent
• CW — Control Word
• DRM — Digital Rights Management
• IR — Internet Registry
• SAP — Session Announcement Protocol
• PDN — Packet Data Network
• HSS — Home Subscriber Server
• NTFS — New Technology File System
• KMS — Key Management Service
• DCCP — Datagram Congestion Control Protocol
• MCU — Multipoint Control Unit
• QLCS — Quasi-Linear Convective System
• IPV4 — Internet Protocol Version 4
• UA — User Agent
• UPNP — Universal Plug and Play
• CESOPSN — Circuit Emulation Service over Packet Switched Network
• AOR — Address of Record
• FA — Foreign Agent
• ES — Errored Second
• MCS — Mesoscale Convective System
• BNF — Backus-Naur Form (computing)
• DNS-SD — DNS-based Service Discovery
• STP — Spanning Tree Protocol
• HMAC — Hash-Based Message Authentication Code
• ARIN — American Registry for Internet Numbers
• CTS — Clear To Send
• SPF — Sender Policy Framework
• FCP — Fibre Channel Protocol
• MNC — Mobile Network Code
• CISC — Complex Instruction Set Computer
• IMSI — International Mobile Subscriber Identity
• LACP — Link Aggregation Control Protocol

• SLP — Service Location Protocol
• DID — direct inward dial
• GUID — Globally Unique Identifier
• IRI — Internationalized Resource Identifier
• WLAN — Wireless Local Area Network
• UAS — User Agent Server
• MTU — Maximum Transmission Unit
• RS — Router Solicitation
• MDL — maximum datagram lifetime
• PKI — Public Key Infrastructure (cryptography)
• BACP — Bandwidth Allocation Control Protocol
• ND — Neighbor Discovery
• NAT-PMP — NAT Port Mapping Protocol
• ASIC — Application Specific Integrated Circuit
• SCRAM — Salted Challenge Response Authentication Mechanism
• PVA — Positive Vorticity Advection
• GMAC — Galois Message Authentication Code
• ABR — Area Border Router
• HPC — Hydrometeorological Prediction Center
• PCM — Pulse-Code Modulation
• MPLS — Multiprotocol Label Switching
• LATM — Low-overhead MPEG-4 Audio Transport Multiplex
• SOA — Start of Authority (domain name system record)
• EDGE — Enhanced Data Rates for GSM Evolution
• AR — Access Router
• NMS — Network Management System
• MPEG — Motion Picture Experts Group
• ARMV4 — Advanced RISC Machine version 4
• ARQ — Automatic Repeat-reQuest
• AVPF — Audio-Visual Profile with Feedback
• OID — Object Identifier
• EPC — Evolved Packet Core
• IOI — Item of Interest
• IV — Initialization Vector
• DPI — Deep Packet Inspection
• EMSK — Extended Master Session Key
• PAT — Port Address Translation
• ADU — Application Data Unit
• RTSP — Real Time Streaming Protocol
• B-ISDN — Broadband Integrated Services Digital Network
• GERAN — GSM/Edge Radio Access Network
• NNTP — Network News Transfer Protocol
• SBC — Session Border Controller
• TCU — Towering Cumulus
• 6RD — IPv6 Rapid Deployment on IPv4 Infrastructures
• ICP — Internet Content Provider
• TLD — Top-Level Domain
• PKINIT — Public Key Cryptography for Initial Authentication in Kerberos
• LRU — Least Recently Used
• CDN — Content Distribution Network

• HIP — Host Identity Protocol
• BER — Basic Encoding Rules (ASN.1)
• COS — Class Of Service
• PDC — Personal Digital Cellular
• PPTP — Point-to-Point Tunneling Protocol
• DOI — Domain Of Interpretation
• KDC — Kerberos Key Distribution Center
• DTD — Document Type Definition (XML)
• BEEP — Blocks Extensible Exchange Protocol
• NAI — Network Access Identifier
• SAN — System Area Network
• KEM — Key Encapsulation Mechanism
• DSLAM — Digital Subscriber Line Access Multiplexer (Module)
• CALDAV — Calendaring Extensions to WebDAV
• ECP — Encryption Control Protocol
• PAKE — password-authenticated key exchange
• CO — Central Office
• PHB — Per Hop Behavior
• EGP — Exterior Gateway Protocol
• ATTM — At This Time
• LIR — Local Internet Registry
• DAD — Duplicate Address Detection
• EPON — Ethernet Passive Optical Network
• APN — An Access Point Name
• OGC — Open Geospatial Consortium
• PV — Potential Vorticity
• ECCSI — Elliptic Curve-Based Certificateless Signatures for Identity-Based Encryption
• AVP — Attribute-Value Pair
• FFD — Full Function Device
• FFS — For Further Study
• MANET — Mobile Ad Hoc Network
• OWAMP — One-Way Active Measurement Protocol
• TDM — Time Division Multiplexer
• ACAP — Application Configuration Access Protocol
• IDS — Intrusion Detection System
• OMA — Open Mobile Alliance
• CIDR — Classless Inter-Domain Routing (ATM)
• RED — Random Early Detection
• VAD — Velocity-Azimuth Display
• MSRP — Message Session Relay Protocol
• NCP — Network Control Protocol
• IESG — Internet Engineering Steering Group
• TC — Tropical Cyclone
• ISNS — Internet Storage Name Service
• TKIP — Temporal Key Integrity Protocol
• NHLFE — Next Hop Label Forwarding Entry
• AP — access point
• HA — Home Agent
• NTP — Network Time Protocol
• ASOS — Automated Surface Observing System

• STS — Synchronous Transport Signal
• RTO — Retransmission Timeout
• TLV — Type-Length-Value
• LCT — Layered Coding Transport (IETF)
• BSO — Basic Security Option
• SDU — Service Data Unit (ATM)
• ISOC — Internet Society
• GFP — Generic Framing Procedure
• MIC — Message Integrity Code
• BOF — Birds of a Feather
• COPS — Common Open Policy Service
• TS — Tropical Storm
• TOE — Target of Evaluation
• RIR — Regional Internet Registry
• GSI — Grid Security Infrastructure
• CAM — Content Addressable Memory
• IAP — Intercept Access Point
• DTMF — Dual-Tone MultiFrequency
• IPV6 — Internet Protocol Version 6
• IKE — Internet Key Exchange
• MIKEY — Multimedia Internet Keying
• RTBH — Remote Triggered Black Hole
• SPD — Security Policy Database
• MSA — Mail Submission Agent
• DVMRP — Distance Vector Multicast Routing Protocol
• PII — Personally Identifiable Information
• RMT — Reliable Multicast Transport
• PE — Provider Edge
• LI — Lifted Index
• CRS — Coordinate Reference Systems
• VPLS — Virtual Private LAN Service
• DCE — Data Communication Equipment
• MSM — Mobile Station Modem
• GOES — Geostationary Operational Environmental Satellite
• FPGA — Field-Programmable Gate Array
• ALG — Application Layer Gateway
• IGMP — Internet Group Management Protocol
• IAB — Internet Architecture Board
• ISC — Internet Systems Consortium, Inc
• MXF — Material eXchange Format
• FEC — Forward Error Correction
• GML — Geography Markup Language
• WIMAX — Worldwide Interoperability for Microwave Access, Inc.
• DN — Distinguished Name
• PSC — Packet Switch Capable
• RADIUS — Remote Authentication Dial-In User Service
• SID — Silence Insertion Descriptor
• SA — Source Address
• MSB — Most Significant Bit
• RPF — Reverse Path Forwarding

• PDN GW — Packet Data Network Gateway
• LAG — Link Aggregation Group
• KMP — Key Management Protocol
• DER — Distinguished Encoding Rules
• VPI — Virtual Path Identifier
• WGS 84 — World Geodetic System 1894
• ISS — Internal Sublayer Service
• BFD — Bidirectional Forwarding Detection
• RTCP — Real-time Transport Control Protocol
• DSS — Digital Signature Standard
• BRN — Bulk Richardson Number
• PPPOE — Point-to-Point Protocol Over Ethernet
• AWIPS — Advanced weather Interactive Processing System (NOAA)
• NAT — Network Address Translation
• PLPMTUD — Packetization Layer Path MTU Discovery
• ESP — Encapsulating Security Payload
• IRTF — Internet Research Task Force
• MIDI — Musical Instrument Digital Interface
• CFWS — comments and folding white space
• PLC — Power line communication (electricity)
• VRF — Virtual Routing and Forwarding Tables
• LLN — Low-Power and Lossy Network
• DVB — Digital Video Broadcasting
• UID — Unique Identifier
• IQN — iSCSI Qualified Name
• TGS — Ticket-granting Server
• RDI — Remote Defect Indicator (UNI Fault Management)
• IPP — Internet Printing Protocol
• POSIX — Portable Operating System Interface
• PEN — Private Enterprise Number
• SONET — Synchronous Optical Network
• SMI — Structure of Management Information
• AC — Attachment Circuit
• CRLF — Carriage-Return Line-Feed
• CAVE — Cellular Authentication and Voice Encryption Algorithm
• NREN — National Research and Education Network
• FPS — Frames per second.
• IE — Information Element
• MCC — Mesoscale Convective Complex
• LC — Link Connection
• HLR — Home Location Register
• XSD — XML Schema Definition
• TFTP — Trivial File Transfer Protocol (ATM)
• WHT — Walsh-Hadamard Transform
• GTK — Group Temporal Key
• CGA — Cryptographically Generated Addresses
• EMS — Energy Management Systems
• EE — End Entity
• WRF — Weather Research and Forecasting
• EDF — Empirical Distribution Function

• PANA — Protocol for Carrying Authentication for Network Access
• NLY — Northerly
• SDP — Session Description Protocol
• DPVA — Differential Positive Vorticity Advection
• VLAN — Virtual Local Area Network
• MP-BGP — Multiprotocol BGP
• CCTLD — country code Top Level Domain
• GTLD — Generic Top-Level Domain
• NVA — Negative Vorticity Advection
• DSCP — Differentiated Services Code Point
• MLM — Mailing List Manager
• AMR-WB — Adaptive Multi-Rate Wideband
• RIB — Routing Information Base
• LCL — Lifted Condensation Level
• ICSA — International Computer Security Association
• KPAK — Key Management Service Public Authentication Key
• NRZ — Non-Return-To-Zero
• SMDS — Switched Multimegabit Data Service (ATM)
• POP — Post Office Protocol
• BSR — Bootstrap Router
• IKEV2 — Internet Key Exchange Protocol Version 2
• LKH — Logical Key Hierarchy
• MRTG — Multi Router Traffic Grapher
• SUT — System Under Test
• SMIV2 — Structure of Management Information Version 2
• AOB — At or Below
• CPP — Common Profile for Presence
• ICV — Integrity Check Value
• BWER — Bounded Weak-Echo Region
• SMPTE — Society of Motion Picture and Television Engineers, Inc.
• LFN — Long Fat Network
• DBA — Dynamic Bandwidth Allocation
• BFCP — Binary Floor Control Protocol
• SSN — Station Serial Number
• DDDS — Dynamic Delegation Discovery System
• EDNS — Extension Mechanisms for DNS
• TCN — Topology Change Notification
• LLJ — Low Level Jet stream
• NAS — Network-Attached Storage
• GPU — Graphics Processing Unit
• SAD — Security Association Database
• IDEA — International Data Encryption Algorithm
• AF — Assured Forwarding
• VOP — Video Object Plane
• 3GPP IMS — Third Generation Partnership Project Internet Multimedia System
• IO — Information Object
• ASN — Access Service Network
• QSIG — Q-Signaling protocol
• MD5 — Message Digest 5
• AMEI — Association of Musical Electronics Industry

• UUID — Universally Unique Identifier (see Also GUID)
• RSSI — Received Signal Strength Indication
• HC — High Capacity
• HBA — Host Bus Adapter
• PPPOA — Point-to-Point Protocol Over ATM
• PON — Passive Optical Network
• NVT — Network Virtual Terminal
• CNG — comfort noise generation
• CP — Certificate Policy
• GGSN — Gateway GPRS Support Node
• NENA — National Emergency Number Association
• ITIP — iCalendar Transport-Independent Interoperability Protocol
• RP — Rendezvous Point
• POS — PPP Over SONET
• PLR — Packet Loss Rate
• LLC/SNAP — Logical Link Control/Subnetwork Access Protocol
• SVC — Switched Virtual Circuit (ATM)
• SRTCP — Secure Realtime Transport Control Protocol
• ROHC — Robust Header Compression
• LLDP — Link Layer Discovery Protocol
• UMA — Unlicensed Mobile Access
• AVA — Attribute Value Assertion
• MITM — Man in the Middle
• SOP — Start of Packet
• CB — Cumulonimbus
• RR — Resource Record
• REST — Representational State Transfer
• KDF — Key Derivation Function
• ASN.1 — Abstract Syntax Notation One
• HG — Home Gateway
• BAB — Bundle Authentication Block
• QOE — Quality of Experience
• CAC — Connection Admission Control (Asynchronous Transfer Mode)
• EID — Endpoint Identifier
• FBL — Feedback Loop
• CDR — Call Data Record
• WW — Weather Watch
• SSRC — Synchronization Source
• TDMA — time-division multiple access
• FIB — Forwarding Information Base
• GBE — Gigabit Ethernet
• WWPN — World Wide Port Name (IBM ESS training/fiber channel)
• AFI — Address Family Identifier
• GMRP — GARP Multicast Registration Protocol
• DR — Designated Router (networking)
• RDMA — Remote Direct Memory Access
• SA — Security Association
• MG — Media Gateway
• LDP — Label Distribution Protocol
• WRN — Western

• AIMD — Additive Increase, Multiplicative Decrease
• GSS-API — Generic Security Service Application Program Interface
• NORM — NACK-Oriented Reliable Multicast
• ICE — Interactive Connectivity Establishment
• OCSP — Online Certificate Status Protocol
• ETX — Expected Transmission Count
• CN — Correspondent Node
• PWE3 — Pseudowire Emulation Edge-to-Edge
• NWS — National Weather Service (formerly U.S. Weather Bureau)
• PSK — Pre-Shared Key
• CAPWAP — Control and Provisioning of Wireless Access Points
• NAT-PT — Network Address Translation - Protocol Translation
• SRTP — Secure Realtime Transport Protocol
• MP2MP — Multipoint-to-Multipoint
• UTI — Universal Transport Interface
• SVL — Shared VLAN Learning
• FECN — Forward Explicit Congestion Notification (ATM)
• IXFR — Incremental Zone Transfer
• MF — More Fragments
• SIMD — Single Instruction, Multiple Data (system) (processor)
• SA — Source-Active
• FCAPS — Fault, Configuration, Accounting, Performance, and Security
• AKA — Authentication and Key Agreement
• MSW — Most Significant Word
• UVV — Upward Vertical Velocity
• RAOB — Radiosonde Observation
• CORS — Cross-Origin Resource Sharing
• CMTS — Cable Modem Termination System
• LSW — Least Significant Word
• NIDS — Network Intrusion Detection System
• CSI — Conditional Symmetric Instability
• B4 — Basic Bridging BroadBand
• DS-LITE — Dual-Stack Lite
• NAL — Network Abstraction Layer
• TFRC — TCP-Friendly Rate Control
• GFS — Global Forecast System
• DFZ — Default-Free Zone
• DLSW — Data Link Switching
• MSDP — Multicast Source Discovery Protocol
• PTP — Point To point Protocol
• ECM — Error Correction Model
• IGP — Interior Gateway Protocol
• RIPNG — Routing Information Protocol Next Generation
• MS — Media Server
• EPC — Electronic Product Code
• SRN — Southern
• RLE — Run-Length Encoding
• MT — Mobile Terminal
• MS — Manual Switch
• CCNR — Call Completion on No Reply

• CDN — Call-Disconnect-Notify
• NCEP — National Centers For Environmental Prediction (form. NMC; NWS Center)
• ABRO — Authoritative Border Router Option
• MHP — Multimedia Home Platform
• PACE — Password Authenticated Connection Establishment
• FWS — Folding White Space
• PSN — Packet Switched Network
• VRRP — Virtual Router Redundancy Protocol
• MB — Millibar(s)
• VDSL — Very High Speed Digital Subscriber Line
• PAL — Phase Alternation Line
• KSK — Key Signing Key
• ULA — Unique Local Address
• MPI — Minimum Picture Interval
• LMQC — Last Member Query Count
• SAP — Serving Access Point
• PCP — Port Control Protocol
• NHC — United States National Hurricane Center
• DUID — DHCP unique identifier
• MGC — Multimedia Gateway Controller
• VSP — Voice Service Provider
• RDN — Relative Distinguished Name
• DOCSIS — Data over Cable Service Interface Specification
• LSP — Link State PDU (Protocol Data Unit)
• ECT — ECN-Capable Transport
• PKIX — Public Key Infrastructure using X.509
• SSO — Single Sign-On Once
• NEA — Network Endpoint Assessment
• COA — Care-Of Address
• RMON — Remote Monitoring
• MRRU — Maximum Reconstructed Reception Unit
• SNTP — Simple Network Time Protocol
• SIP — Session Initiation Protocol
• TEI — Terminal Endpoint Identifier
• DSDL — Document Schema Definition Languages
• OSSI — Open Source Software Institute
• IWF — Interworking Function
• CSNP — Complete Sequence Number PDU
• MSTP — Multiple Spanning Tree Protocol
• MS-PW — Multi-Segment Pseudowire
• CIPSO — Common Internet Protocol Security Option
• LFC — Level of Free Convection
• VPWS — Virtual Private Wire Service
• LDML — Locale Data Markup Language
• CRMF — Certificate Request Message Format
• SCVP — Simple Certificate Validation Protocol
• PIM — Protocol Independent Multicast
• RANAP — Radio Access Network Application Protocol
• L2TP — Layer 2 Tunneling Protocol
• CAR — committed access rate

• O&M — OAM and Management
• P3P — The Platform for Privacy Preferences Project
• DLCI — data link connection identifier
• MEP — Maintenance Entity Group End Point
• XCAP — Extensible Markup Language (XML) Configuration Access Protocol
• BR — Border Router
• W-CDMA — Wideband Code Division Multiple Access
• COM — Component Object Module
• PTK — Pairwise Transient Key
• 6LR — 6LoWPAN Router
• SSAP — Source Service Access Point
• LLQT — Last Listener Query Timer
• URN — Uniform Resource Namespace
• MSL — Maximum Segment Lifetime
• ESS — Extended service set (Wi-Fi group)
• PDP — Packet Data Protocol
• MT — Message Transfer
• NA — Neighbor Advertisement
• CDMI — Cloud Data Management Interface
• LFSR — Linear Feedback Shift Register
• NID — Network Interface Device
• MCV — Mesoscale Convective Vortex
• CDP — Content Delivery Protocol
• NSAP — Network Service Access Point
• RCODE — No Expansion
• TNC — Trusted Network Connect
• VCI — Virtual Channel Identifier
• CSRF — Cross-Site Request Forgery
• IAID — Identity Association IDentifier
• IPDV — IP Packet Delay Variation
• TRILL — TRansparent Interconnection of Lots of Links
• VPIM — Voice Profile for Internet Mail
• NE — Network Element
• RAID — Redundant Array of Independent Disks
• PGM — Pragmatic General Multicast
• P2P — Peer-to-peer (networking)
• EVDO — Evolution-Data Optimized
• LFIB — Label Forwarding Information Base
• WWN — World Wide Name
• DELT — Dual Ended Loop Test
• SAN — Subject Alternative Name
• SCVP — Server-Based Certificate Validation Protocol
• L2F — Layer 2 Forwarding (Cisco)
• CES — Circuit Emulation Service
• CMC — Certificate Management over CMS
• CATNIP — Common Architecture for Next Generation Internet Protocol
• ESN — Electronic Serial Number
• GSAKMP — Group Secure Association Key Management Protocol
• CLDR — Common Locale Data Repository
• EL — Equilibrium Level

• CLNS — Connectionless Network Service
• ASBR — Autonomous System Border Router
• EUI — Extended Unique Identifier
• MME — Mobile Management Entity
• SFGMP — Source Filtering Group Management Protocol
• STP — Secure Transfer Protocol
• NAT-T — Network Address Translation Traversal
• LSP — Link State Packet
• FTN — FEC-to-NHLFE
• URPF — Unicast Reverse Path Forwarding
• STB — Set-Top Box
• 2G — Second generation cellular
• RIPE NCC — Reseaux IP Europeens Network Coordination Centre
• GARP — Generic Attribute Registration Protocol
• NRN — Northern
• DAO — Destination Advertisement Object
• TF-EMC2 — Task Force on European Middleware Coordination and Collaboration
• HFC — Hybrid Fiber Coaxial
• WRR — Weighted Round Robin
• PDV — Packet Delay Variation
• LBR — LLN Border Router
• EFCI — Explicit Forward Congestion Indication (ATM)
• GRUU — Globally Routable User Agent URI
• WFQ — Weighted Fair Queuing
• OLT — Optical Line Terminal
• MSCML — Media Server Control Markup Language
• IVL — Independent VLAN Learning
• GCO — Global Concurrent Optimization
• MR — Mobile Router
• NCE — Network Connection Endpoint
• OTP — One-Time Password authentication
• MAP — Mobile Application Part
• INVOF — In vicinity of
• SPIT — Spam Over Internet Telephony
• VRP — VLAN Registration Protocol
• NTSC — National Television Standards Committee
• LER — Label Edge Router
• LMA — Local Mobility Anchor
• DHCPV6 — Dynamic Host Configuration Protocol for IPv6
• SPE — Synchronous Payload Envelope
• WFO — Weather Forecast Office
• AAL5 — ATM Adaptation Layer 5
• PI — Provider Independent
• CN — Client Node
• PAC — Proxy Auto-Configuration
• OAM — Operations Administration and Maintenance
• ISCSI — Internet Small Computer System Interface
• NAPTR — Naming Authority Pointer
• CALS — Computer-Aided Acquisition and Life-Cycle Support
• ATU — ADSL Transceiver Unit

• PLCP — Physical Layer Convergence Procedure
• ENB — Evolved Node B
• CIST — Common and Internal Spanning Tree
• NIR — National Internet Registry
• WWNN — World Wide Node Name
• DPNSS — Digital Private Network Signaling System
• ROA — Route Origin Authorization
• PAD — Peer Authorization Database
• ERN — Eastern
• SBM — Subnet Bandwidth Manager
• XDR — External Data Representation protocol
• OLS — Optical Line System
• ESMTP — Extended Simple Mail Transfer Protocol
• GNSS — Global Navigation Satellite System
• RPSL — Routing Policy Specification Language
• CFB — Cipher Feedback
• NSAP — Network Service Access Protocol
• RJRS — Recovery Journal Receiver Structure
• DNT — Do Not Track
• TSTM — Thunderstorm
• ABNF — Augmented Backus-Naur Form
• ORO — Option Request Option
• TDMOIP — Time Division Multiplexing over IP
• PSS — Probabilistic Signature Scheme
• UNI — User-Network Interface
• NDP — Neighbor Discovery Protocol
• PIM-SM — Protocol Independent Multicast-Sparse Mode
• MFIB — Multicast Forwarding Information Base
• EFM — Ethernet First Mile
• EHLO — Extended Hello
• DSAP — Destination Service Access Point
• ACCAS — Altocumulus Castellanus
• ESO — Extended Security Option
• GSTN — General Switched Telephone Network
• AUID — Agent or User Identifier
• MGCP — Multimedia Gateway Control Protocol
• SLAAC — Stateless Address Autoconfiguration
• LSAP — Link Service Access Point
• IBE — Identity-Based Encryption
• CELP — code-excited linear prediction
• FARP — Fibre Channel Address Resolution Protocol
• SIFS — Short InterFrame Space
• CT_IU — Common Transport Information Unit
• SMUX — SNMP Multiplex Protocol
• ALT — Alternative Logical Topology
• MAG — Mobile Access Gateway
• ADISC — Address Discovery Extended Link Service
• AFTR — Address Family Transition Router
• MLPP — Multi-Level Precedence and Preemption
• DCT — Discrete Cosine Transformer

• UTRAN — Universal Terrestrial Radio Access Network
• UDDI — Universal Description, Discovery, and Integration
• CEMA — Connection Establishment for Media Anchoring
• CAA — Cold Air Advection
• VLB — Valiant Load-Balancing
• LSP — Label Switched Path
• PTM — Pulse-Time Modulation
• SSPI — Security Support Provider Interface
• SPC — Storm Prediction Center
• CGN — Carrier-Grade NAT
• SAFI — Subsequent Address Family Identifier
• ERO — Explicit Route Object
• UDP-LITE — User Datagram Protocol Lite
• LCAS — Link Capacity Adjustment Scheme
• AKM — Authentication and Key Management
• PSN — Public Switched Network
• BRDP — Border Router Discovery Protocol
• SRP — Secure Remote Passwords
• NMM — Nonhydrostatic Mesoscale Model
• JID — Jabber Identifier
• SRR — Status Report Request
• PHY — Physical Layer
• SBR — Spectral Band Replication
• ZSK — Zone Signing Key (information technology)
• USM — User-based Security Model
• EHI — Energy Helicity Index
• LSC — Link State Control
• AMID — Additive Increase Multiplicative Decrease
• PPS — Packets Per Second
• AMR-NB — Adaptive Multi Rate - NarrowBand
• MSA — Message Submission Agent
• KLV — Key-Length-Value
• SHIM — Stanza Headers and Internet Metadata
• MPLS-TP — MPLS Transport Profile
• DIO — DODAG Information Object
• CPL — Call Processing Language
• EIP — Extended Internet Protocol
• CIN — Convective Inhibition
• RD — Route Distinguisher
• EWMA — Exponentially Weighted Moving Average
• UAC — User Agent Client
• SGW — Serving Gateway
• CEK — content-encryption key
• FDT — File Delivery Table
• E-LINE — Ethernet point-to-point connectivity
• OFB — Output Feedback
• CLP — Cell Loss Priority (ATM)
• SPKI — Simple Public Key Infrastructure
• NEMO — Network Mobility
• VAD — Voice Activity Detection

• CMAC — Cipher-based Message Authentication Code
• LEDBAT — Low Extra Delay Background Transport
• SAR — Segmentation and Reassembly (ATM)
• TUG — Tributary Unit Group
• DSACK — Duplicate Selective Acknowledgement
• PLC — Packet Loss Concealment
• AFBR — Address Family Border Routers
• VCI — Virtual-Circuit Identifier
• EPS — Evolved Packet System
• IHL — Internet Header Length
• PDSN — Packet Data Serving Node
• VPC — Virtual Path Connection (ATM)
• ICC — ITU-T Carrier Code
• DRO — Discovery Reply Object
• NOS/OLS — Not_Operational Primitive Sequence / Offline Primitive Sequence
• LMDS — Local Multipoint Distribution Service
• IPFRR — IP Fast Reroute
• QOP — Quality Of Protection
• NLRI — Network Layer Reachability Information
• CIS — Cryptographic Interoperability Strategy (US NSA)
• PBU — Proxy Binding Update
• PT — Payload Type (ATM)
• SDID — Signing Domain Identifier
• VACM — View-based Access Control Model
• MOP — Mode of Operations
• AAH — Abandoning All Hope
• ACH — Associated Channel Header
• ETR — Egress Tunnel Router
• RELAX NG — REgular LAnguage for XML Next Generation
• CE — Congestion Experienced
• SPF — Shortest Path First
• SSE — State Signaling Event
• PMD — Physical Medium Dependent
• DRBG — deterministic random-bit generator
• 6PE — IPv6 Provider Edge
• RSA — Rivest, Shamir, & Adleman
• RTT — round-trip time
• MBMS — Multimedia Broadcast/Multicast Service
• ISATAP — Intra-Site Automatic Tunnel Addressing Protocol
• LLQI — Last Listener Query Interval
• TEP — tunnel endpoint
• OTASP — Over-The-Air Service Provisioning (telcommunications)
• WAA — Warm Air Advection
• ULP — Unequal Loss Protection
• XRI — Extensible Resource Identifier
• SIMPLE — SIP for Instant Messaging and Presence Leveraging Extensions
• TGT — ticket-granting ticket
• RBRIDGE — Routing Bridge
• ISUP — ISDN User Part
• IGD — Internet Gateway Device

• MHAE — Mobile-Home Authentication Extension
• DTSN — Destination Advertisement Trigger Sequence Number
• SSK — Secret Signing Key
• BSC — Base Station Controller
• DAG — directed acyclic graph
• HBA — Host-Based Authentication
• MP2PE — Multi-Point to Point Emulation
• DD — Database Description
• LEWP — Line Echo Wave Pattern
• MIN — Mobile Identification Number
• MRU — Maximum Receive Unit
• EFR — Enhanced Full Rate
• OA — Ordered Aggregate
• IUA — ISDN Q.921-User Adaptations Layer
• MKT — Master Key Tuple
• ESRP — Emergency Service Routing Proxy
• CE — Control Element
• VC — Virtual Circuit (ATM)
• Z — Zulu Time
• SHDSL — Single-pair High-speed Digital Subscriber Line
• TPM — Transport Performance Metrics
• OGF — Open Grid Forum
• CLI — Calling Line Identification
• DE — Discard Eligible
• SAML — Security Assertion Markup Language
• IPSEC — IP Security
• SS7 — Signaling System 7
• LDH — letter-digit-hyphen
• ECMP — Electronic Commerce Messaging Protocol
• AVT — Audio/Video Transport
• CMS — Cryptographic Message Syntax
• MAP — Mobility Anchor Point
• NAPT — Network Address Port Translator
• ARO — Address Registration Option
• IIH — Is-Is Hello
• CCID — Content Collection IDentifier
• PKG — Private-Key Generator
• CRISP — Cross Registry Internet Service Protocol
• LIP — Loop Initialization Primitive
• GSLB — Global Server Load Balancing
• PBB — Provider Backbone Bridge
• MSML — Media Server Markup Language
• BDP — Bandwidth-Delay Product
• PCRF — Policy and Charging Rule Function
• DDNS — Dynamic DNS
• 4G — 4th Generation Mobile network
• MLDV2 — Multicast Listener Discovery Version 2
• IMPP — Instant Messaging and Presence Protocol
• FORCES — Forwarding and Control Element Separation Working Group
• SNP — Sequence Number Packet

• XUI — XCAP User Identifier
• TLDP — Targeted LDP
• BTMM — Back to My Mac
• OCP — Objective Code Point
• LDPC — Low-Density Parity Check
• NNI — Network-Network Interface
• A P — Address plus Port
• RE — Redundancy Elimination
• SIDR — Secure Inter-Domain Routing
• RSTP — Rapid Spanning Tree Protocol
• PA — Provider Assigned (IP address space assigned to a specific provider by IANA)
• SWODY3 — Severe Weather Outlook - Day 3
• FDB — Filtering Database
• OLSR — Optimized Link State Routing
• PSAP — Public Safety Answering Point (911)
• DTN — Delay-Tolerant Networking
• ALTO — Application-Layer Traffic Optimization
• EOR — Exclusive OR
• ILM — Incoming Label Mapping
• MRT — Multi-Threaded Routing Toolkit
• CARD — Candidate Access Router Discovery
• QG — Quasi-Geostrophic Analysis
• IPBX — IP Private Branch Exchange
• EPP — Extensible Provisioning Protocol
• TOIP — Real-time Text over Internet Protocol
• VBR-NRT — Variable Bit Rate - Non Real Time
• IDN — Internationalized Domain Name
• DSN — Delivery Status Notification
• ESB — Extension Security Block
• SNI — Server Name Indication
• NLM — Network Lock Manager
• ATA — Analog Telephone Adaptor
• RPKI — Resource Public Key Infrastructure
• DECADE — DECoupled Application Data Enroute
• SLY — Southerly
• ILNP — Identifier-Locator Network Protocol
• PIO — Prefix Information Option
• TNCP — TRILL Network Control Protocol
• CBC-MAC — Cipher Block Chaining Message Authentication Code
• RLS — Resource List Server
• 6LN — 6LoWPAN Node
• ULID — Upper-Layer Identifier
• MN-FA — Mobile Node - Foreign Agent
• KPML — Key Press Markup Language
• TDIM — Time-Division Inverse Multiplexing
• NETINF — Network of Information
• PI — Protocol Instantiation
• UMTS — Universal Mobile Telecommunications Standard
• DIFS — Distributed Interframe Space
• HSTS — HTTP Strict Transport Security

• SDO — Standards Development Organization
• NAM — North American Model
• GTP — Generic Tunneling Protocol
• PLMN — Public Land-based Mobile Network
• NBMA — Non-Broadcast Multi-Access
• IS-IS — Intermediate System to Intermediate System (routing protocol)
• PTSW — payload type switch
• ERT — Expected Residual Time
• DP — Distribution Point
• BCC — Bonding Communication Channel
• ECMP — Equal-Cost Multipath
• AMSS — Advanced Mobile Station Software
• PMS — Physical Media Specific
• VCCV — Virtual Circuit Connectivity Verification
• TML — Transport Mapping Layer
• EC2N — Elliptic Curve Group Over GF(2^N)
• PSS — Packet-switched Streaming Service
• 6TO4-PMT — 6to4 Provider Managed Tunnel
• EISS — Extended Internal Sublayer Service
• MCMS — Multimedia Cable Network System
• LSDB — Link State Database Because
• AQM — Active Queue Management
• SIPP — Simple Internet Protocol Plus
• SASL — Simple Authentication and Security Layer
• IS — Information Service
• MUA — Message User Agent
• APP — Application-specific functions
• PEM1 — No Expansion
• AHS — Additional Header Segment
• FEC — Forwarding Equivalence Class
• SPT — Shortest Path Tree
• FRR — Fast Reroute
• SPVC — Switched Permanent Virtual Circuit
• AH — Authentication Header
• SIPS — Session Initiation Protocol Secure
• NRS — Name Resolution Service
• SSEO — SPC Storm-Scale Ensemble of Opportunity
• AAK — Authenticated Anticipatory Keying
• OIPF — Open IPTV Forum
• AWOS — Automated Weather Observation System
• MWI — Message-Waiting Indicator
• APNIC — Asia Pacific Network Information Centre
• CLEI — Common Language Equipment Identifier
• FSPF — Fabric Shortest Path First
• TPS — Transport Protocol Specific
• PTM — Point-To-Multipoint
• DSUSRK — Domain-Specific Usage-Specific Root Keys
• SRH — Storm Relative Helicity
• LTE — Long-Term Evolution
• AXFR — Asynchronous Full Transfer

• MSS — Mobile Support Station
• LSR — Label Switching Router
• MEG — Maintenance Entity Group
• ADSP — Author Domain Signing Practices
• FRAND — fair, reasonable, and non-discriminatory
• LSC — Lambda Switch Capable
• RVS — Rendezvous Server
• DANE — DNS-Based Authentication of Named Entities
• TNP — TRILL Network Protocol
• IBAKE — Identity-Based Authenticated Key Exchange
• TSN — Test Support Network
• BTU — Bonding Transmission Unit
• TERENA — Trans-European Research and Education Networking Association
• VBR-RT — Variable Bit Rate - Real Time
• GEFS — Global Ensemble Forecast System
• CITE — Critical Ingress-to-Egress
• ASE — Autonomous System External
• T-PE — Terminating Provider Edge
• EML — Elevated Mixed Layer
• RDDP — Remote Direct Data Placement Protocol
• AOA — At or Above
• TDD — Telecommunication Device for the Deaf
• IID — Interface Identifier
• WLY — Westerly
• LMQI — Last Member Query Interval
• ULJ — Upper-Level Jet
• EPI — Educational Policy Institute
• P2P — Point-To-Point
• UNSAF — UNilateral Self-Address Fixing
• CR — Correspondent Router
• 2.5G — Enhanced second generation cellular
• MRIB — Multicast Routing Information Base
• CEP — Circuit Emulation over Packet
• ELY — EasterLY
• OPEX — Operating Expenses
• LACNIC — Latin American and the Caribbean Internet Addresses Registry
• NFC — Normalization Form Composed
• AD — Authentic Data
• UMB — Ultra Mobile Broadband
• NMP — Network Musical Performance
• PLR — Point of Local Repair
• TD — Tropical Depression
• RA — Routing Area
• BCH — Bose, Ray-Chaudhuri, Hocquenghem
• ASON — Automatically Switched Optical Network
• ODU — Optical Data Unit
• KSAK — Key Management Service Secret Authentication Key
• LDN — Local Domain Name
• AR — Address Resolution
• DASH — Dynamic Adaptive Streaming over HTTP

• VIL — Vertically Integrated Liquid
• AAD — Additional Authenticated Data
• CES — Core-Edge Separation
• ACK — No Expansion
• SMSS — sender maximum segment size
• ARO — Access Router Option
• ER — EAP Re-authentication
• BIH — Bump-in-the-Host
• CCID — Congestion Control Identifier
• UTF-8 — Unicode Transformation Format 8
• BACP — Bonding Aggregation Control Protocol
• OEO — optical-electronic-optical
• CE — Customer Edge (IETF RFC 2547)
• OSN — Original Sequence Number
• IDP — Identity provider
• ESN — Extended Sequence Number
• AHS — Adaptive HTTP Streaming
• GAL — Generic Associated Channel Label
• PS — Parametric Stereo
• TTD — Throughput Test Device
• MKI — Master Key Identifier
• TTSI — Text-To-Speech Interface
• SRV — Service Record
• SALT — Speech Application Language Tag
• PMSI — Provider Multicast Service Interface
• SNIA — Storage Networking Industry Association
• XCON — Centralized Conferencing
• PAR — previous access router
• JRD — JSON Resource Descriptor
• SREF — Short Range Ensemble Forecast system
• KARP — Keying and Authentication for Routing Protocols
• EKU — Extended Key Usage
• SATOP — Structure-Agnostic Time Division Multiplexing over Packet
• IDRP — Inter-Domain Routing Protocol (ATM)
• NSSL — National Severe Storms Labratory
• DGIWG — Defence Geospatial Information Working Group
• RRO — Record Route Object
• CDF — Comma-Delimited Format or
• CLDR — Connectionless Data Response
• BIS — Bump-in-the-Stack
• UDVM — Universal Data/Voice Multiplexer
• LFN — Local Fixed Node
• RTX — Request Retransmission
• CSPF — Constrained Shortest Path First
• CDNI — Content Distribution Network Interconnection
• BPDU — Bridge PDU
• BTS — Base Tranceiver Station
• ISID — Initiator Session Identifier
• IAX — Inter-Asterisk Exchange
• NAR — New-Access Router

• LCI — Location Configuration Information
• TURN — Traversal Using Relay NAT
• NS — Neighbor Solicitation
• WEBDAV — Web Distributed Authoring and Versioning
• HSPA — High-Speed Packet Access
• FCIP — Fibre Channel Over TCP/IP
• MCC — Mobile Country Code (telecommunications)
• DASS2 — Digital Access Signaling System 2
• PAI — P-Asserted-Identity
• IU — Information Unit
• PCE — path computation element
• AMDAR — Aircraft Meteorological Data Relay
• SPME — Sub-Path Maintenance Element
• WSON — Wavelength Switched Optical Networks
• MPI — Multiprecision Integer
• ILV — Index-Length-Value
• SI — softwire initiator
• COA — Change-of-Authorization
• MAS — Mobile Access Station
• LRM — Link Resource Manager
• NFKC — Normalization Form KC
• 6LOWPANS — IPv6 over Low-Power Wireless Personal Area Networks
• ECP — Elliptic Curve Group over GF[P]
• ITU-T — ITU Telecommunication standardization sector
• MO — Measurement Object
• LFB — Logical Functional Block
• OPES — Open Pluggable Edge Services
• VCAT — Virtual Concatenation
• CHBH — Critical Hop-by-Hop
• PIDF — Presence Information Data Format
• EBGP — External Border Gateway Protocol
• NID — Network Identifier
• AFRINIC — African Network Information Center
• PR-SCTP — Partially Reliable-Stream Control Transmission Protocol
• P2MP — Point-To-Multipoint
• RAO — Router Alert Option
• NCE — Neighbor Cache Entry
• NSP — Network-Specific Prefix
• DF — Don't Fragment
• SAVI — Source Address Validation Improvement
• DELMARVA — DELaware / MARyland / VirginiA region
• PMIPV6 — Proxy Mobile IPv6
• CIPID — Contact Information in PIDF
• ANG — Access Network Gateway
• VMR-WB — Variable Multi Rate WideBand
• EBM — Equipped Bit Mask
• SPKM — Simple Public-Key GSS-API Mechanism
• IDNA — Internationalizing Domain Names in Applications
• PAA — PANA Authentication Agent
• HRRR — High-Resolution Rapid Refresh model

• SAOL — Structured Audio Orchestra Language
• RSVP-TE — RSVP - Traffic Engineering
• TX — Transmission
• BCE — Bonding Channel Entity
• USRK — Usage-Specific Root Keys
• WS — White Space
• GSE — Generalized Structure Elements
• CPIM — Common Presence and Instant Messaging
• INCITS — International Committee for Information Technology Standards
• EC — Elliptic Curve
• CAB — Converged Address Book
• ASE — amplifier spontaneous emission
• PS — Proxy Signature
• UKMET — United Kingdom METeorological Office Model
• TPGT — Target Portal Group Tag
• AVP — Audio-visual Profile
• AFS — Authentication File System
• CADES — CMS Advanced Electronic Signatures
• PKCS — Public-Key Cryptography Standards
• IR — Initiation and Refresh
• ASM — Any-Source Multicast
• SSV — Shared Secret Value
• HOKEY — Handover Keying
• PVP — Permanent Virtual Path
• ILMI — Integrated Local Management Interface
• SWODY1 — Severe Weather Outlook - Day 1
• RTMP — Real Time Messaging Protocol
• SSM — Single Source Multicast
• HELD — HTTP-Enabled Location Delivery
• RC — Routing Controller
• IMIP — iCalendar Message-Based Interoperability Protocol
• RSIP — Realm Specific IP
• ASNGW — Access Service Network Gateway
• HMIPV6 — Hierarchical Mobile IPv6
• GBS — Generic Bonding Sub-layer
• MACE — Middleware Architecture Committee for Education
• ECAM — European Committee for Academic Middleware
• SS-PW — Single-Segment Pseudowire
• TAMP — Trust Anchor Management Protocol
• HOTI — Home Test Init
• SEAL — Subnetwork Encapsulation and Adaptation Layer
• MINE — Minimal Encapsulation in IP
• SAID — Security Association Identifier
• ONC — Open Network Computing (Distributed Applications Architecture)
• IAP — Intermediate Anonymization Process
• TESLA — Timed Efficient Stream Loss-Tolerant Authentication
• NVC — Number of Virtual Components
• ISPF — Incremental Shortest Path First
• RZ — Return-to-Zero
• EVRC-NW — Enhanced Variable Rate Narrowband-Wideband Codec

• SNID — subnamespace identifier
• FII — Forked Instance Identifier
• MPD — Media Presentation Description
• DSM — demand-side management
• SRH — Source Routing Header
• OTI — Object Transmission Information
• NSC — Network Simulation Cradle
• DTS — Decode Time Stamp
• CSAIL — Computer Science & Artificial Intelligence Laboratory
• BIA — Bump-in-the-API
• VDL — Valid Data Length
• VT — Virtual Tributary (ATM)
• ARF — Abuse Reporting Format
• DDUL — Dynamic DNS Update Lease
• IPFIX — Ip Flow Information Export
• NMAG — new Mobility Access Gateway
• NID — Namespace Identifier
• RAP — RAP id Refresh
• CNF — Cache-and-Forward
• VBD — Voiceband Data
• BB — Bottleneck Bandwidth
• DVI — No Expansion
• TSM — Transport Security Model
• CID — Context Identifier
• HTML — Hyptertext Markup Language
• E-LSP — Explicitly TC-encoded-PSC LSP
• IBCF — Interconnection Border Control Function
• EDIINT — Electronic Data Interchange Internet Integration
• TU — Time Unit
• PDU — Packet Data Unit or
• SACK — Selective Acknowledgment
• COTI — Care-of Test Init
• CID — Content Identifier
• WPC — Weather Prediction Center
• VSA — vendor-specific attribute
• MODP — modular exponentiation group
• RDO — Route Discovery Option
• IID — Instance Identifier
• SLLAO — Source Link-Layer Address Option
• ORCHID — Overlay Routable Cryptographic Hash Identifiers
• OIF — Outgoing Interface
• JWT — Joint Working Team
• SMB — Session Management Broker
• CR-LDP — Constraint-based Routed Label Distribution Protocol
• CEID — Control Element ID
• ASM — address-sharing mechanism
• RRT — Return Routability Test
• SECG — Standards for Efficient Cryptography Group
• GMPLS — Generalized Multiprotocol Label Switching
• SNAP — Simple Notification and Alarm Protocol

• RR — Route Reflector
• PMAG — previous Mobility Access Gateway
• EPUB — Electronic Publication
• LSB — Locator-Status-Bit
• MT — Multiplier
• SAVP — Secure Audio-Visual Profile
• CONS — Content distribution Overlay Network Service
• R2T — request-to-transmit
• S/D — Source/Destination
• CC-V — Continuity Check and Connectivity Verification
• SS-FSSI — Sender-Side FEC-Scheme-Specific Information
• NLPID — Network Layer Protocol Identifier
• BCP — Bridging Control Protocol
• LOPS — Loss of Packet Synchronization
• RSOO — Relay-Supplied Options option
• ESI — Entity Status Inquiry
• LDI — Link Down Indication
• CRIO — Core Router-Integrated Overlay
• LIFO — last-in-first-out
• SMF — Standard MIDI File
• PCEP — Path Computation Element Protocol
• RR — Receiver Report
• AMR — An Adaptive Multi Rate
• CC — Call Completion
• BRPC — Backward Recursive PCE-Based Computation
• CCNL — Call Completion on Not Logged-in
• XML-RPC — Extensible Markup Language-Remote Procedure Calling
• US-CERT — US Computer Emergency Readiness Team
• MNG — Mobile Network Gateway
• LCP — Location Configuration Protocol
• EVRC — Enhanced Variable Rate Codec
• RD — Router Discovery
• LLS — Link-Local Signaling
• TSN — Trunk Switched Network
• IPPM — IP Performance Metrics
• RAMS — Rapid Acquisition of Multicast Sessions
• GTSM — Generalized TTL Security Mechanism
• ESI — Error Source Identifier
• SDAT — Simple DNA address table
• FIA — Form Interpretation Algorithm
• DRS — DGIWG Registry System
• MLDP — Multipoint LDP
• MD — Mesoscale Discussion
• PPSP — Peer-to-Peer Streaming Portocol
• GIST — General Internet Signaling Transport
• LISP — Locator-Identifier Split Protocol
• IAMM — In-line Aware MRB Mode
• DAC — Duplicate Address Confirmation
• FSSI — FEC-Scheme-Specific Information
• PHP — Penultimate Hop Popping

• MR — Map Resolver
• SPND — Secure Proxy Neighbor Discovery
• NETCONF — Network Configuration Protocol
• LW-IGMPV3 — Lightweight IGMPv3
• KE — key establishment
• TSI — Transport Session Identifier
• CSP — Content Service Provider
• OF — Objective Function
• HET — Header Extension Type
• MED — Multi-Exit Discriminator
• CCXML — Call Control XML
• HIT — Host Identity Tag
• L-LSP — Label-Only-Inferred-PSC LSP
• NSCP — Name Server Control Protocol
• XOR — Exclusive Or
• FE — Forwarding Element
• XR — Extended Report
• CSRC — Contributing Source
• LSE — Label Stack Entry
• COT — Care-of Test
• CMCC — Conference and Media Control Client
• LCAF — LISP Canonical Address Format
• GSPD — Group Security Policy Database
• PHOP — previous hop
• ROLL — Routing Over Low-Power and Lossy
• ELOC — Endpoint Locator
• QQIC — Querier's Query Interval Code
• SSV — Secret State Verifier
• APM — Application Performance Measurement
• LRDD — Link-based Resource Descriptor Document
• OTAF — Over-the-Air Functionality
• CAA — Certification Authority Authorization
• OATC — Open Authentication Technology Committee
• ECMWF — European Centre for Medium-Range Weather Forecasts model
• VCARD — No expansion
• ALOC — Area Locator
• ICRP — Incoming-Call-Reply
• POI — Purge Originator Identification
• DIS — DODAG Information Solicitation
• IUMM — In-line Unaware MRB Mode
• TIMIP — Terminal Independent Mobile IP
• LLID — Logical Link Identifier
• SRLG — Shared Risk Link Group
• MRB — Media Resource Broker
• VWP — VAD Wind Profile
• DKIM — DomainKeys Identified Mail
• LOST — Location-to-Service Translation
• HAS — HTTP Adaptive Streaming
• TOI — Transmission Object Identifier
• AS — Application Specification

• CID — Connection Identifier
• CRTP — compressed RTP
• LQI — Link Quality Indication
• CCM — Codec Control Messages
• PCC — Path Computation Client
• SSE — Server Session End
• DSE — DSA-Specific Entry
• LSI — Local Scope Identifier
• SLLA — Source Link-Layer Address
• DLV — DNSSEC Lookaside Validation
• DPS — Domain Pseudonym System
• RPN — Registered Parameter Numbers
• LWSP — linear whitespace
• PMTUD — Path Mtu Discovery
• RS — Retransmission Server
• PETR — Proxy Egress Tunnel Router
• BN — Bundle Node
• HOT — Home Test
• PHIB — Previous Hop Insertion Block
• SSRR — Strict Source and Record Route
• LSRR — Loose Source and Record Route
• NSS — Namespace Specific String
• PVT — Public Validation Token
• ARKLATEX — ARKansas / LouisianA / TEXas region
• OFIB — ordered forwarding information base
• AMS — authoritative mapping server
• WEBRC — Wave and Equation Based Rate Control
• ERU — Effective Request URI
• CTM — Cellular Text Telephone Modem
• SEND — SEcure Neighbor Discovery
• VMR — Variable Multi Rate
• ERX — EAP Re-authentication Extension
• MDS — Maximal Separable Distance
• COMEDIA — Connection-Oriented Media
• DAR — Duplicate Address Request
• TFS — Time and Frequency Synchronization
• RBR — Realm Border Router
• 6LSA — IPv6 Label Switching Architecture
• RFD — Reduced Function Device
• NUD — Neighbor Unreachability Discovery
• GDOI — Group Domain of Interpretation
• PTS — Presentation Time Stamps (MPEG systems)
• PRNG — Pseudorandom Number Generator
• I-D — Internet-Draft
• FAD — feature and attribute data
• LFA — Loop-Free Alternate
• PT — posture transport
• MC — Motion Compensation
• RLOC — Routing Locator
• MOSPF — Multicast Extensions to OSPF

• SPM — Secure Password Method
• UAM — Universal Access Method
• TLLAO — Target Link-Layer Address Option
• DP — Data Plane
• DUA — DASS 2 Extensions
• SDNV — Self-Delimiting Numeric Value
• IPHC — IP Header Compression
• LSA — Link State Advertisement
• AIA — Authority Information Access
• MIP — Maintenance Entity Group Intermediate Point
• SIMCO — Simple Middlebox Configuration
• NSSA — Not-So-Stubby Area
• ION — IETF Operational Notes
• QRV — Querier's Robustness Variable
• GSPM — Generic Secure Password Method
• WM — Wireless Medium
• CTR — Counter Mode
• SSN — Stream Sequence Number
• IBGP — Internal BGP
• HOA — Home Address
• SBN — Source Block Number
• KINK — Kerberized Internet Negotiation of Keys
• ERE — Extended Regular Expressions
• SDES — Source Description
• ESI — Encoding Symbol ID
• LCCE — Logical Cluster Computing Environment
• LCP — large content providers
• ANAT — Alternative Network Address Types
• SPNEGO — Simple and Protected GSS-API Negotiation Mechanism
• CAP — Candidate Access Point
• GPMD — General-Purpose Media Descriptor
• CIID — Carousel Instance IDentifier
• BSP — Bundle Security Protocol
• PMTU — Path Mtu Recovery
• DNA — Detecting Network Attachment
• PBA — Proxy Binding Acknowledgement
• MA — Multicast Acquisition
• XRD — Extensible Resource Descriptor
• SB — Source Block
• OXC — Optical Crossconnect
• CCE — Call-Completion Entity
• CPS — Certification Path Solicitation
• TLLA — Target Link-Layer Address
• MRD — Multicast Router Discovery
• GLB — Global Locator Block
• UDPTL — UDP Transport Layer
• NCS — Network Control Signaling
• NSIS — Next Steps In Signaling
• CU — CUmulus cloud
• HPTP — HTTP-based Peer to Peer

• SR — sender report
• RIID — Rendezvous Point Interface ID
• SYN — No Expansion
• PITR — proxy ingress tunnel router
• CBR — Constant Bitrate
• PRF — pseudorandom function
• IPCP — IP Control Protocol
• FA — forwarding adjacency
• CA — cryptographic authentication
• NUT — Network Under Test
• LMQT — Last Member Query Timer
• NSE — Named Signaling Event
• CPS — Certification Practices Statement
• IPTV — No Expansion
• ERP — EAP Re-authentication Protocol
• PC — Protocol Controller
• PTI — Payload Type Identifier (ATM)
• MIF — multiple interfaces
• SFMT — sub-feedback message type
• NSP — native service processing
• FI — Forwarding Indicator
• WF — Wildcard-Filter
• NDP — Neighbor Discovery Process
• HBA — Hash-Based Addresses
• BSM — Bootstrap Message
• IMS — IP Multimedia Subsystems
• VET — Virtual Enterprise Traversal
• TSN — Transmission Sequence Number
• MSN — Master Sequence Number
• WRAP — Web Resource Authorization Profiles
• ENUM — No Expansion
• ESADI — End-Station Address Distribution Information
• OMP — Optical Multi-Point
• DTD — Deactivation Time Delay
• IMA — Inverse Multiplexing for ATM
• WSP — whitespace
• CPA — Certification Path Advertisement
• SCCRP — Start-Control-Connection-Reply
• CID — Carousel Instance Descriptor
• IW — Initial Window
• PCN — Pre-Congestion Notification
• GLOP — No Expansion
• RP — Relying Party
• PRL — Potential Router List
• DAR — Dynamic Alternate Routing
• PD — Prefix Delegation
• PHR — Per Hop Reservation
• MSA — Mobility Service Authorizer
• ITR — Ingress Tunnel Router
• NRPN — Non-Registered Parameter Numbers

• IEC — International Electronical Commission
• LIS — Location Information Server
• CBID — Crypto-Based Identifier
• ALC — Asynchronous Layered Coding
• HIPV4 — hierarchical IPv4
• DPS — Distributed Programming System
• MSTP — Mobility Service Transport Protocol
• ICRQ — Incoming-Call-Request
• FMT — feedback message type
• SC — Softwire Concentrator
• PL — Protocol Layer
• DAC — Dynamic Authorization Client
• SMR — Solicit-Map-Request
• DS — Delegation Signer
• XLAT — translator
• DHAAD — Dynamic Home Agent Address Discovery
• PW — pseudowire
• PB — Provider Bridge
• SCHAC — Schema for Academia
• TS — Traffic Selector
• PNNI — Private Network-Network Interface
• TIAS — Transport Independent Application Specific)
• MEDIACTRL — Media Server Control
• ECRTP — Enhanced Compressed RTP
• PCB — Payload Confidentiality Block
• RLMI — Resource List Meta-Information
• PCMU — Pulse Coded Modulation
• MIDCOM — Middlebox Communications
• NSEC — NextSECure
• RDS — Resolution Discovery System
• SRP — Secure Routing Protocol
• DNSSEC — DNS Security
• MMA — MIDI Manufacturers Association
• ATD — Activation Time Delay
• FCI — Feedback Control Information
• LW-MLDV2 — Lightweight MLDv2
• DSRK — Domain-Specific Root Key
• OMAP — Online Multimedia Authorization Protocol
• PRR — Policy Reserve Rule
• CTO — Congestion Timeout
• BEK — bundle encryption key
• RJSS — Recovery Journal Sending Structure
• MCC — Management Communication Channel
• HAC — Home Agen Controller
• VSS — Virtual Subnet Selection
• MINC — multicast inference of network characteristics
• FG — forest guide
• SWODY2 — Severe Weather Outlook - Day 2
• DRB — Designated RBridge
• SCT — Sender Current Time

• ETS — Emergency Telecommunications Service
• PA — provider-aggregated
• EOF — Extended Options and Flags
• MT — Multi-Topology
• LDR — Link Delivery Ratio
• POP — proof of possession
• GCKS — Group Controller/Key Server
• NSLP — NSIS Signaling Layer Protocol
• PLC — Policy Lifetime Change
• MA — Multiple Attachments
• SCCRQ — Start-Control-Connection-Request
• TLSP — TRILL Link State Protocol
• EMA — External Measurement Agent
• PRR — Port-Range Router
• MIP6 — Mobile IPv6
• XMLDSIG — XML Digital Signatures
• NEWPRED — No Expansion
• FIN — Not expanded
• ECP — Electronic CodeBook
• GAS — Generic Advertisement Service
• SOP — Same-Origin Policy
• MPTCP — Multipath TCP
• PSAMP — Packet Sampling
• NIH — Named Information for Humans
• FT — Feedback Target
• IV — Impairment Validation
• NDN — Named Data Networking
• DS — Differentiated Services
• VXML — VoiceXML
• ESI — Energy Services Interface
• RW — Restart Window
• FID — Flow ID
• PB — Posture Broker
• PIB — Payload Integrity Block
• OPEX — Operational Expediture
• REAP — Reachability Protocol
• SCS — Secure Cookie Sessions
• SNP — Subnetwork Point
• SLI — Set-Link-Info
• LSP — Loose Source Routing
• DPA — Destination Preference Attribute
• DA — Datamover Architecture
• PDS — Parameter Data Structure
• TV — Type/Value
• ERP — Enterprise Resource Provision

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