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Look through 1745 acronyms and abbreviations related to Technical:

• M2/S2 — Meters squared per second squared
• LAN — Local Area Network
• J/KG — Joules per Kilogram
• S2L — source-to-leaf
• ANSI — American National Standards Institute, Inc.
• OEM — Original Equipment Manufacturer (usually in reference to car parts)
• XML — Extensible Markup Language
• FTP — File Transfer Protocol
• EAP-TTLS — Extensible Authentication Protocol-Tunneled Transport Layer Security
• CPU — Central Processing Unit
• EDGE — Enhanced Data Rates for GSM Evolution
• IP — Internet Protocol
• ARP — Address Resolution Protocol (ATM)
• FCFS — First Come First Served
• PDF — Portable Document Format (created by Adobe Acrobat)
• FIFO — First In, First Out
• E-VLAN — Ethernet Virtual Private LAN
• ASCII — American National Standard Code for Information Interchange
• GUI — Graphical User Interface (goo-ey)
• API — Application Programming Interface
• ATM — Automatic Teller Machine
• RF — Radio Frequency
• ISO — International Organization for Standardization
• DWDM — Dense Wavelength Division Multiplexing
• EDI — Electronic Data Interchange
• CR — Carriage Return
• MAN — Metropolitan Area Network
• ISP — Internet Service Provider
• B2BUA — Back-To-Back User Agent
• VPN — Virtual Private Network (ATM)
• ATM — Asynchronous Transfer Mode
• GPS — Global Positioning System (ex-NAVSTAR)
• CSMA/CD — Carrier Sense Multiple Access with Collision Detection
• GSM — Global System for Mobile Communications
• ECC CDH — Elliptic Curve Cryptography Cofactor Diffie-Hellman
• HTTP — Hypertext Transfer Protocol
• PGP — Pretty Good Privacy (encryption)
• WAN — Wide Area Network
• IA_PD — Identity Association for Prefix Delegation
• OCR — Optical Character Recognition
• PDA — Personal Digital Assistant
• SMTP — Simple Mail Transfer Protocol
• RDF — Resource Description Framework
• DARPA — Defense Advanced Research Projects Agency (US)
• EOF — End Of File
• S-NAPTR — Straightforward-Naming Authority Pointer
• ADSL — Asymmetric Digital Subscriber Line
• DUT — Device Under Test
• SLA — Service Level Agreement
• G-ACH — Generic Associated Channel

• ZKPP — Zero-Knowledge Password Proof
• ARKLAMISS — ARKansas / LouisianA /MISSissippi region
• N-PE — Network-facing PE
• NSF — National Sanitation Foundation
• PIDF-LO — Presence Information Data Format Location Object
• CPE — Customer Premises Equipment
• CAPTCHA — Completely Automated Public Turing test to tell Computers and Humans Apart
• ACE — Access Control Entry
• ISDN — Integrated Services Digital Network
• S-GW — Serving Gateway
• SQL — Structured Query Language
• FFT — Fast Fourier Transform
• DES — Data Encryption Standard
• MDC — Modification Detection Code
• DHCP — Dynamic Host Configuration Protocol
• U-NII — Unlicensed National Information Infrastructure Devices
• DDOS — Distributed Denial of Service
• U-PE — User-facing PE
• IETF — Internet Engineering Task Force
• L2VPN — Layer 2 Virtual Private Network
• NFS — Network File System
• L3VPN — Layer 3 Virtual Private Network
• FAN ELS — Fabric Address Notification Extended Link Service
• PNG — Portable Network Graphics (graphic file standard/extension)
• ASP — Application Service Provider
• MUA — Mail User Agent (Internet email)
• ABI — Application Binary Interface
• EAP-GSPK — Extensible Authentication Protocol - Generalized Pre-Shared Key
• ITU — International Telecommunication Union
• DCOM — Distributed Component Object Model
• QOS — Quality of Service
• POP — Point Of Presence (Internet)
• CONUS — Continental United States (48 Contiguous States and DC)
• T-MPLS — Transport MPLS
• IVR — Interactive Voice Response (telephone technology)
• CGI — Common Gateway Interface
• S-PE — Switching Provider Edge
• NIST — National Institute of Standards and Technology
• RAMS-R — RAMS Request
• S-BGP — Secure Border Gateway Protocol
• RANGER — Routing and Addressing in Networks with Global Enterprise Recursion
• DNS — Domain Name System
• P2PE — Point-to-Point Emulation
• RAMS-T — RAMS Termination
• S-PMSI — Selective PMSI
• FQDN — Fully Qualified Domain Name
• XNQ — eXtended Network Quality
• MOBIKE — IKEv2 Mobility and Multihoming
• IR — Infrared
• AES — Advanced Encryption Standard

• TWAMP — Two-Way Active Measurement Protocol
• LUN — Logical Unit Number
• KEK — Key Encryption Key (COMSEC Key)
• RAQMON — Real-time Application Quality-of-Service Monitoring
• UI — User Interface
• CDMA — Code Division Multiple Access (voice/data transmission)
• OS — Operating System
• HKDF — HMAC-based Key Derivation Function
• ACL — Access Control List
• DSL — Digital Subscriber Line
• CRC — Contrôle de Redondance Cyclique (French: Cyclic Redundancy Check)
• CLI — Command line Interface (Cabletron)
• UDP — User Datagram Protocol (FDDI related)
• IA-RWA — Impairment-Aware Routing and Wavelength Assignment
• GMT — Greenwich Mean Time (Zulu)
• MAX — Maximum
• MA/RA — Maintenance Agency/Registration Authority
• EIRP — Equivalent Isotropic Radiated Power
• AEAD — Authenticated Encryption with Associated Data
• UTC — Coordinated Universal Time
• AAA — authentication, authorization, and accounting
• PVC — Permanent Virtual Circuit (ATM)
• FROPA — Frontal Passage
• BER — Bit-Error Rate
• IMAP — Internet Message Access Protocol
• ECDH — Elliptic Curve Diffie-Hellman
• TCP — Transmission Control Protocol
• GPRS — General Packet Radio Service
• FDDI — Fiber Distributed Data Interface
• CUG — Closed User Group
• BRI — Basic Rate Interface
• DTE — Data Terminal Equipment
• BRAS — Broadband Remote Access Server
• PDH — Plesiochronous Digital Hierarchy
• SSID — Service set identifier (Wi-Fi)
• SCSI — Small Computer System Interface
• PSTN — Public Switched Telephone Network
• SOHO — Small Office Home Office
• RISC — Reduced Instruction Set Computer
• PBKDF2 — Password-Based Key Derivation Function 2
• EBCDIC — Extended Binary Coded Decimal Interchange Code (pronounced Eb-see-dik) (cf. BCD)
• ADM — Add-Drop Multiplexer
• JSON — JavaScript Object Notation
• DSP — Digital Signal Processor
• IANA — Internet Assigned Numbers Authority
• SNMP — Simple Network Management Protocol (ATM)
• PPP — Point-to-Point Protocol
• BW — Bandwidth
• W3C — World Wide Web Consortium
• DSA — Digital Signature Algorithm

• MAC — Media Access Control
• DODAG — Destination-Oriented Directed Acyclic Graph
• AAC — Advanced Audio Coding
• TTL — Time To Live
• 4RD — IPv4 Residual Deployment
• CORBA — Common Object Request Broker Architecture
• RPC — Remote Procedure Call
• RIP — Routing Information Protocol
• PBX — Private Branch eXchange (company phone system)
• WAP — Wireless Application Protocol
• OSI — Open Systems Interconnection (iso Standard)
• BCP — Best Current Practice
• USB — Universal Serial Bus
• DUNS — Data Universal Numbering System
• RMS — root mean square (preferred over "RMS")
• SSL/TLS — Secure Socket Layer/Transport Layer Security
• SVG — Scalable Vector Graphics
• CRL — Certificate Revocation List
• MIB — Management Information Base (ATM)
• BGP — Border Gateway Protocol (routing protocol)
• CSIRT — Computer Security Incident Response Team
• LDAP — Lightweight Directory Access Protocol (pronounced Ell-dap)
• NIC — Network Interface Card
• MMS — Multimedia Messaging Service
• VOIP — Voice Over IP (Internet Protocol)
• IFF — If and Only If
• BNG — Broadband Network Gateway
• ICMP — Internet Control Message Protocol
• WEP — Wired Equivalent Privacy
• FLUTE — File Delivery Over Unidirectional Transport
• SMS — Short Message Service
• SHA — Secure Hash Algorithm
• WDM — Wavelength Division Multiplexing (fiber optics)
• PCM — Pulse-Code Modulation
• PDU — Protocol data unit (such as segment, packet, frame, etc.)
• AC — Access Control
• MSS — Maximum Segment Size (TCP/IP)
• OSS — Operational Support System
• ECDSA — Elliptic Curve Digital Signature Algorithm
• ADS — Astrophysics Data System
• DRM — Digital Rights Management
• EAP — Extensible Authentication Protocol
• OSPF — Open Shortest Path First (ATM)
• DTLS — Datagram Transport Layer Security
• DOS — Denial Of Service
• SOAP — Simple Object Access Protocol
• BOF — Birds of a Feather
• DOM — Document Object Model
• AMI — Advanced Metering Infrastructure
• GUID — Globally Unique Identifier

• LLDP-MED — Link Layer Discovery Protocol-Media Endpoint Discovery
• LMP — Link Management Protocol
• SMIL — Synchronized Multimedia Integration Language
• CHAP — Challenge Handshake Authentication Protocol (ATM)
• SDH — Synchronous Digital Hierarchy (ATM)
• PEP — Policy Enforcement Point
• OASIS — Organization for the Advancement of Structured Information Standards
• SNR — Signal-to-Noise Ratio
• FCS — Frame check sequence (Ethernet)
• DCE — Distributed Computing Environment
• RSAES-OAEP — RSA Encryption Scheme - Optimal Asymmetric Encryption Padding
• NNTP — Network News Transfer Protocol
• MAC — Message Authentication Code
• OU — Organizational Unit
• HTTPS — HyperText Transfer Protocol Secure
• BSSID — Basic Service Set Identifier
• RTP — Real-Time Transport Protocol
• CN — Common Name
• TLS — Transport Layer Security
• RSASSA-PSS — RSA Probabilistic Signature Scheme
• NIC — Network Information Center
• IDS — Intrusion Detection System
• LRU — Least Recently Used
• WG — Working Group
• AIS — Alarm Indication Signal
• POTS — Plain Old Telephone Service (FCW)
• FMIPV6 — Fast Handovers for Mobile IPv6
• HDLC — High-Level Data Link Control
• DNS-SD — DNS-based Service Discovery
• IF — Intermediate Frequency
• ROADM — Reconfigurable Optical Add/Drop Multiplexer
• CAPE — Convective Available Potential Energy
• NSP — Network Service Provider
• ASN — Autonomous System Number
• WLAN — Wireless Local Area Network
• MTA — Mail Transfer Agent
• AU — Audio Unit
• FPS — Frames per second.
• LCP — Link Control Protocol
• CERT — Computer Emergency Response Team
• PKI — Public Key Infrastructure (cryptography)
• RNC — Radio Network Controller
• 3PCC — Third Party Call Control
• NIS — Network Information Service
• URI — Uniform Resource Identifier
• DCVA — Differential Cyclonic Vorticity Advection (meteorology)
• UML — Unified Modeling Language (Object Management Group, OMG)
• NEA — Network Endpoint Assessment
• NMS — Network Management System
• MTU — Maximum Transmission Unit

• UPNP — Universal Plug and Play
• CDF — Cumulative Distribution Function
• FEC — Forward Error Correction
• CESOPSN — Circuit Emulation Service over Packet Switched Network
• ISAKMP — Internet Security Association and Key Management Protocol
• 6LBR — 6LoWPAN Border Router
• MPEG — Motion Picture Experts Group
• MVRP — Multiple VLAN Registration Protocol
• ECC — Elliptic Curve Cryptography
• NTP — Network Time Protocol
• RPL — Routing Protocol for Low-Power and Lossy Networks
• AS — Autonomous System
• GPL — General Public License
• 3G — Third Generation mobile phone network
• SMI — Structure of Management Information
• ECN — Explicit Congestion Notification
• UA — User Agent
• FSM — Finite State Machine
• KMS — Key Management Service
• CBC — cipher block chaining
• CISC — Complex Instruction Set Computer
• GRE — Generic Routing Encapsulation
• SCTP — Stream Control Transmission Protocol
• DTX — Discontinuous Transmission
• RAN — Radio Access Network
• MDNS — Multicast DNS
• LOWPAN — Low-Power Wireless Personal Area Network
• MPLS — Multiprotocol Label Switching
• PPTP — Point-to-Point Tunneling Protocol
• IMSI — International Mobile Subscriber Identity
• S/MIME — Secure/Multipurpose Internet Mail Extensions
• GCM — Galois/Counter Mode
• EGP — Exterior Gateway Protocol
• IPX — Internetwork Packet Exchange
• ACARS — Aircraft Communications Addressing and Reporting System
• AOR — Address of Record
• OUI — Organizationally Unique Identifier
• LACP — Link Aggregation Control Protocol
• IPV4 — Internet Protocol Version 4
• SN — Sequence Number
• SOA — Start of Authority (domain name system record)
• SAVPF — Secure Audio-Visual Profile with Feedback
• PSD — Power Spectral Density
• IMEI — International Mobile Equipment Identity
• MDA — Mail Delivery Agent
• ARIN — American Registry for Internet Numbers
• CCMP — Counter Mode with CBC-MAC Protocol
• DCCP — Datagram Congestion Control Protocol
• FTTH — Fiber To The Home
• ARQ — Automatic Repeat-reQuest

• PKINIT — Public Key Cryptography for Initial Authentication in Kerberos
• KDC — Kerberos Key Distribution Center
• ACAP — Application Configuration Access Protocol
• DCE — Data Communication Equipment
• DID — direct inward dial
• XMPP — Extensible Messaging and Presence Protocol
• RSVP — Resource Reservation Protocol (Internet)
• MCS — Mesoscale Convective System
• TLV — Type-Length-Value
• GMII — Gigabit Media Independent Interface
• SONET — Synchronous Optical Network
• B-ISDN — Broadband Integrated Services Digital Network
• FR — Frame Relay
• VCC — Virtual Channel Connection (ATM)
• IAMM — In-line Aware MRB Mode
• PDN — Packet Data Network
• DIT — Directory Information Tree
• TKIP — Temporal Key Integrity Protocol
• BS — Base Station
• UUID — Universally Unique Identifier (see Also GUID)
• SCRAM — Salted Challenge Response Authentication Mechanism
• CIDR — Classless Inter-Domain Routing (ATM)
• MSB — Most Significant Bit
• FA — Foreign Agent
• NAS — Network Access Server
• VOD — Video On Demand
• HSM — Hardware Security Module
• NWS — National Weather Service (formerly U.S. Weather Bureau)
• GOES — Geostationary Operational Environmental Satellite
• ASR — Automatic Speech Recognition
• SDP — Session Description Protocol
• KEM — Key Encapsulation Mechanism
• MOS — Model Output Statistics
• ES — Errored Second
• APN — An Access Point Name
• MIC — Message Integrity Check
• CA — Certificate Authority
• 6CO — 6LoWPAN Context Option
• RTSP — Real Time Streaming Protocol
• IAP — Internet Access Provider
• CDN — Content Delivery Network
• OTN — Optical Transport Network
• DTD — Document Type Definition (XML)
• IRI — Internationalized Resource Identifier
• SMIV2 — Structure of Management Information Version 2
• ANDSF — Access Network Discovery and Selection Function
• OMA — Open Mobile Alliance
• BER — Basic Encoding Rules (ASN.1)
• HSS — Home Subscriber Server
• MS — Mobile Station

• PII — Personally Identifiable Information
• DPI — Deep Packet Inspection
• PTM — Packet Transfer Mode
• FF — Fixed-Filter
• PPPOE — Point-to-Point Protocol Over Ethernet
• EF — Expedited Forwarding
• TPDU — Transport Protocol Data Unit
• IS — Intermediate System
• BECN — Backward Explicit Congestion Notification
• DSS — Digital Signature Standard
• NTFS — New Technology File System
• SMDS — Switched Multimegabit Data Service (ATM)
• IOS — Internetwork Operating System
• CTS — Clear To Send
• FRZLVL — FReeZing LeVeL
• XSD — XML Schema Definition
• HLR — Home Location Register
• MOS — Mean Opinion Score
• 6RD — IPv6 Rapid Deployment on IPv4 Infrastructures
• ASIC — Application Specific Integrated Circuit
• IFG — Inter-Frame Gap
• EDCA — Enhanced Distributed Channel Access
• SSM — Source-Specific Multicast
• RADIUS — Remote Authentication Dial-In User Service
• IPV6 — Internet Protocol Version 6
• OGC — Open Geospatial Consortium
• IV — Initialization Vector
• OFDM — Orthogonal Frequency Division Multiplexing
• SIMD — Single Instruction, Multiple Data (system) (processor)
• UAS — Unavailable Seconds
• BNF — Backus-Naur Form (computing)
• OID — Object Identifier
• PDC — Personal Digital Cellular
• SVC — Switched Virtual Circuit (ATM)
• TFTP — Trivial File Transfer Protocol (ATM)
• SPF — Sender Policy Framework
• ASOS — Automated Surface Observing System
• STP — Spanning Tree Protocol
• CIA — Confidentiality, Integrity and Availability
• IDEA — International Data Encryption Algorithm
• HIP — Host Identity Protocol
• LLQC — Last Listener Query Count
• SDU — Service Data Unit (ATM)
• TS — Transport Stream
• COS — Class Of Service
• NAT-PMP — NAT Port Mapping Protocol
• FCP — Fibre Channel Protocol
• PV — Potential Vorticity
• GVRP — Generic VLAN Registration Protocol
• MIDI — Musical Instrument Digital Interface

• BEEP — Blocks Extensible Exchange Protocol
• ABR — Area Border Router
• PAT — Port Address Translation
• MN — Mobile Node
• DA — Destination Address
• NREN — National Research and Education Network
• MS — Message Store
• TCAM — Ternary Content-Addressable Memory
• ISOC — Internet Society
• MRTG — Multi Router Traffic Grapher
• TE — Traffic Engineering
• TDM — Time Division Multiplexer
• MCU — Multipoint Control Unit
• NCP — Network Control Protocol
• GML — Geography Markup Language
• SSO — Single Sign-On Once
• ADU — Application Data Unit
• MTA — Mail Transport Agent
• DN — Distinguished Name
• SPI — Security Parameter Index
• RTS — Request To Send
• POP — Post Office Protocol
• HMAC — Hash-Based Message Authentication Code
• SLP — Service Location Protocol
• IPP — Internet Printing Protocol
• ECCSI — Elliptic Curve-Based Certificateless Signatures for Identity-Based Encryption
• COA — Care-Of Address
• MANET — Mobile Ad Hoc Network
• BACP — Bandwidth Allocation Control Protocol
• DVMRP — Distance Vector Multicast Routing Protocol
• DSLAM — Digital Subscriber Line Access Multiplexer (Module)
• EPC — Evolved Packet Core
• TED — Traffic Engineering Database
• FPGA — Field-Programmable Gate Array
• MXF — Material eXchange Format
• LMTP — Local Mail Transfer Protocol
• UE — User Equipment
• ICP — Internet Content Provider
• ALG — Application Layer Gateway
• IKE — Internet Key Exchange
• IAB — Internet Architecture Board
• TLD — Top-Level Domain
• ATTM — At This Time
• NAT — Network Address Translation
• NE — Network Element
• MD5 — Message Digest 5
• DDP — Device Discovery Protocol
• RIR — Regional Internet Registry
• VPI — Virtual Path Identifier
• PLC — Power line communication (electricity)

• WRF — Weather Research and Forecasting
• TCU — Towering Cumulus
• ARMV4 — Advanced RISC Machine version 4
• AP — access point
• LATM — Low-overhead MPEG-4 Audio Transport Multiplex
• EPON — Ethernet Passive Optical Network
• NI — Named Information
• CFWS — comments and folding white space
• ISNS — Internet Storage Name Service
• IRTF — Internet Research Task Force
• PAKE — password-authenticated key exchange
• HBA — Host Bus Adapter
• WRN — Western
• HPC — Hydrometeorological Prediction Center
• AVPF — Audio-Visual Profile with Feedback
• AWIPS — Advanced weather Interactive Processing System (NOAA)
• 3GPP IMS — Third Generation Partnership Project Internet Multimedia System
• KMP — Key Management Protocol
• WIMAX — Worldwide Interoperability for Microwave Access, Inc.
• IGMP — Internet Group Management Protocol
• CO — Central Office
• SBC — Session Border Controller
• GERAN — GSM/Edge Radio Access Network
• CAC — Connection Admission Control (Asynchronous Transfer Mode)
• OWAMP — One-Way Active Measurement Protocol
• PPPOA — Point-to-Point Protocol Over ATM
• MSA — Mail Submission Agent
• AVP — Attribute-Value Pair
• EPC — Electronic Product Code
• ASN.1 — Abstract Syntax Notation One
• NRZ — Non-Return-To-Zero
• PON — Passive Optical Network
• IGP — Interior Gateway Protocol
• NHC — United States National Hurricane Center
• SAP — Session Announcement Protocol
• VLAN — Virtual Local Area Network
• PDN GW — Packet Data Network Gateway
• STS — Synchronous Transport Signal
• MDL — maximum datagram lifetime
• SIP — Session Initiation Protocol
• CAVE — Cellular Authentication and Voice Encryption Algorithm
• PVA — Positive Vorticity Advection
• MSRP — Message Session Relay Protocol
• VAD — Velocity-Azimuth Display
• PSN — Packet Switched Network
• GMAC — Galois Message Authentication Code
• EVS — Extended-Vendor-Specific
• SRN — Southern
• WGS 84 — World Geodetic System 1894
• GGSN — Gateway GPRS Support Node

• UID — Unique Identifier
• NAI — Network Access Identifier
• IOI — Item of Interest
• SAN — System Area Network
• DSCP — Differentiated Services Code Point
• MIC — Message Integrity Code
• RPF — Reverse Path Forwarding
• ECP — Encryption Control Protocol
• HA — Home Agent
• GBE — Gigabit Ethernet
• ICV — Integrity Check Value
• COPS — Common Open Policy Service
• GSI — Grid Security Infrastructure
• MB — Millibar(s)
• AF — Assured Forwarding
• BFD — Bidirectional Forwarding Detection
• WFQ — Weighted Fair Queuing
• NAT-PT — Network Address Translation - Protocol Translation
• LMQC — Last Member Query Count
• LLDP — Link Layer Discovery Protocol
• SA — Source Address
• ESP — Encapsulating Security Payload
• QSIG — Q-Signaling protocol
• NDP — Neighbor Discovery Protocol
• GMRP — GARP Multicast Registration Protocol
• POSIX — Portable Operating System Interface
• NCEP — National Centers For Environmental Prediction (form. NMC; NWS Center)
• FFD — Full Function Device
• PHB — Per Hop Behavior
• GFP — Generic Framing Procedure
• NSAP — Network Service Access Point
• MCC — Mesoscale Convective Complex
• REST — Representational State Transfer
• UAS — User Agent Server
• IESG — Internet Engineering Steering Group
• SNTP — Simple Network Time Protocol
• QLCS — Quasi-Linear Convective System
• LLJ — Low Level Jet stream
• LDP — Label Distribution Protocol
• CW — Control Word
• MNC — Mobile Network Code
• RSSI — Received Signal Strength Indication
• VRRP — Virtual Router Redundancy Protocol
• CCTLD — country code Top Level Domain
• LI — Lifted Index
• RDI — Remote Defect Indicator (UNI Fault Management)
• CDN — Content Distribution Network
• DVB — Digital Video Broadcasting
• IE — Information Element
• NHLFE — Next Hop Label Forwarding Entry

• NAS — Network-Attached Storage
• AR — Access Router
• RTCP — Real-time Transport Control Protocol
• ATU — ADSL Transceiver Unit
• AS — Authentication Service
• SAD — Security Association Database
• CMTS — Cable Modem Termination System
• KPAK — Key Management Service Public Authentication Key
• DBA — Dynamic Bandwidth Allocation
• PDP — Packet Data Protocol
• HC — High Capacity
• BRN — Bulk Richardson Number
• RMON — Remote Monitoring
• UMA — Unlicensed Mobile Access
• CLDR — Common Locale Data Repository
• ESS — Extended service set (Wi-Fi group)
• DTMF — Dual-Tone MultiFrequency
• AMR-WB — Adaptive Multi-Rate Wideband
• LCT — Layered Coding Transport (IETF)
• DER — Distinguished Encoding Rules
• WHT — Walsh-Hadamard Transform
• ND — Neighbor Discovery
• ESMTP — Extended Simple Mail Transfer Protocol
• P2P — Peer-to-peer (networking)
• WWN — World Wide Name
• VPLS — Virtual Private LAN Service
• SMPTE — Society of Motion Picture and Television Engineers, Inc.
• EDNS — Extension Mechanisms for DNS
• GPU — Graphics Processing Unit
• VCI — Virtual Channel Identifier
• NRN — Northern
• IAP — Intercept Access Point
• AMEI — Association of Musical Electronics Industry
• DOI — Domain Of Interpretation
• PSN — Public Switched Network
• SUT — System Under Test
• CGA — Cryptographically Generated Addresses
• NID — Network Interface Device
• FIB — Forwarding Information Base
• MSW — Most Significant Word
• URPF — Unicast Reverse Path Forwarding
• MLM — Mailing List Manager
• ASN — Access Service Network
• PLPMTUD — Packetization Layer Path MTU Discovery
• RED — Random Early Detection
• TDMA — time-division multiple access
• FFS — For Further Study
• TOE — Target of Evaluation
• EMSK — Extended Master Session Key
• RIB — Routing Information Base

• WFO — Weather Forecast Office
• EDF — Empirical Distribution Function
• CAPWAP — Control and Provisioning of Wireless Access Points
• PSAP — Public Safety Answering Point (911)
• SPD — Security Policy Database
• RS — Router Solicitation
• MITM — Man in the Middle
• IR — Internet Registry
• MIKEY — Multimedia Internet Keying
• EE — End Entity
• FECN — Forward Explicit Congestion Notification (ATM)
• AS — Applicability Statement
• RLE — Run-Length Encoding
• AFI — Address Family Identifier
• LSW — Least Significant Word
• RTO — Retransmission Timeout
• ABRO — Authoritative Border Router Option
• KDF — Key Derivation Function
• OCSP — Online Certificate Status Protocol
• SID — Silence Insertion Descriptor
• ISCSI — Internet Small Computer System Interface
• PEN — Private Enterprise Number
• URN — Uniform Resource Namespace
• RAID — Redundant Array of Independent Disks
• CRLF — Carriage-Return Line-Feed
• DAD — Duplicate Address Detection
• AOB — At or Below
• ETX — Expected Transmission Count
• NIDS — Network Intrusion Detection System
• RIPE NCC — Reseaux IP Europeens Network Coordination Centre
• SVL — Shared VLAN Learning
• PHY — Physical Layer
• PSC — Packet Switch Capable
• DSDL — Document Schema Definition Languages
• HFC — Hybrid Fiber Coaxial
• UVV — Upward Vertical Velocity
• GTLD — Generic Top-Level Domain
• SSAP — Source Service Access Point
• ASBR — Autonomous System Border Router
• ICSA — International Computer Security Association
• CLNS — Connectionless Network Service
• DLCI — data link connection identifier
• MEP — Maintenance Entity Group End Point
• RDN — Relative Distinguished Name
• ISC — Internet Systems Consortium, Inc
• EL — Equilibrium Level
• ESN — Electronic Serial Number
• CIPSO — Common Internet Protocol Security Option
• BSO — Basic Security Option
• NENA — National Emergency Number Association

• W-CDMA — Wideband Code Division Multiple Access
• LER — Label Edge Router
• CAR — committed access rate
• HG — Home Gateway
• CAM — Content Addressable Memory
• CSRF — Cross-Site Request Forgery
• LMDS — Local Multipoint Distribution Service
• CALDAV — Calendaring Extensions to WebDAV
• A P — Address plus Port
• SBR — Spectral Band Replication
• IO — Information Object
• TNC — Trusted Network Connect
• IWF — Interworking Function
• SRTP — Secure Realtime Transport Protocol
• LAG — Link Aggregation Group
• LLN — Low-Power and Lossy Network
• DPVA — Differential Positive Vorticity Advection
• LIR — Local Internet Registry
• STB — Set-Top Box
• ACCAS — Altocumulus Castellanus
• MP-BGP — Multiprotocol BGP
• SOP — Start of Packet
• RANAP — Radio Access Network Application Protocol
• CORS — Cross-Origin Resource Sharing
• VRF — Virtual Routing and Forwarding Tables
• SA — Security Association
• GSS-API — Generic Security Service Application Program Interface
• MSM — Mobile Station Modem
• BFCP — Binary Floor Control Protocol
• LCL — Lifted Condensation Level
• NLY — Northerly
• IQN — iSCSI Qualified Name
• PANA — Protocol for Carrying Authentication for Network Access
• NTSC — National Television Standards Committee
• CES — Circuit Emulation Service
• PPS — Packets Per Second
• L2TP — Layer 2 Tunneling Protocol
• GTK — Group Temporal Key
• LLC/SNAP — Logical Link Control/Subnetwork Access Protocol
• MAG — Mobile Access Gateway
• KSK — Key Signing Key
• CFB — Cipher Feedback
• TS — Tropical Storm
• MSTP — Multiple Spanning Tree Protocol
• TC — Tropical Cyclone
• WW — Weather Watch
• SPE — Synchronous Payload Envelope
• ISS — Internal Sublayer Service
• FBL — Feedback Loop
• AHS — Adaptive HTTP Streaming

• BWER — Bounded Weak-Echo Region
• EPS — Evolved Packet System
• SPF — Shortest Path First
• SPIT — Spam Over Internet Telephony
• FWS — Folding White Space
• FCAPS — Fault, Configuration, Accounting, Performance, and Security
• SA — Source-Active
• MP2MP — Multipoint-to-Multipoint
• ABNF — Augmented Backus-Naur Form
• CDMI — Cloud Data Management Interface
• MGC — Multimedia Gateway Controller
• VC — Virtual Circuit (ATM)
• AIMD — Additive Increase, Multiplicative Decrease
• GNSS — Global Navigation Satellite System
• NAL — Network Abstraction Layer
• DUID — DHCP unique identifier
• NVA — Negative Vorticity Advection
• ROHC — Robust Header Compression
• SCVP — Server-Based Certificate Validation Protocol
• ENB — Evolved Node B
• SASL — Simple Authentication and Security Layer
• LSP — Link State Packet
• PACE — Password Authenticated Connection Establishment
• NVT — Network Virtual Terminal
• UTF-8 — Unicode Transformation Format 8
• LFN — Long Fat Network
• MBMS — Multimedia Broadcast/Multicast Service
• DCT — Discrete Cosine Transformer
• GFS — Global Forecast System
• CRS — Coordinate Reference Systems
• BAB — Bundle Authentication Block
• DOCSIS — Data over Cable Service Interface Specification
• SHDSL — Single-pair High-speed Digital Subscriber Line
• LSAP — Link Service Access Point
• L2F — Layer 2 Forwarding (Cisco)
• RMT — Reliable Multicast Transport
• QOE — Quality of Experience
• ITIP — iCalendar Transport-Independent Interoperability Protocol
• IKEV2 — Internet Key Exchange Protocol Version 2
• PSK — Pre-Shared Key
• NOS/OLS — Not_Operational Primitive Sequence / Offline Primitive Sequence
• RIPNG — Routing Information Protocol Next Generation
• DDUL — Dynamic DNS Update Lease
• PE — Provider Edge
• OAM — Operations Administration and Maintenance
• RTT — round-trip time
• AKM — Authentication and Key Management
• ACH — Associated Channel Header
• SDID — Signing Domain Identifier
• EUI — Extended Unique Identifier

• CELP — code-excited linear prediction
• RJRS — Recovery Journal Receiver Structure
• AKA — Authentication and Key Agreement
• AVA — Attribute Value Assertion
• SAR — Segmentation and Reassembly (ATM)
• CBC-MAC — Cipher Block Chaining Message Authentication Code
• TGS — Ticket-granting Server
• DFZ — Default-Free Zone
• COM — Component Object Module
• DLSW — Data Link Switching
• VOP — Video Object Plane
• CNG — comfort noise generation
• CLI — Calling Line Identification
• P3P — The Platform for Privacy Preferences Project
• 2G — Second generation cellular
• PCRF — Policy and Charging Rule Function
• SPC — Storm Prediction Center
• PTP — Point To point Protocol
• SLY — Southerly
• PCP — Port Control Protocol
• ECT — ECN-Capable Transport
• PWE3 — Pseudowire Emulation Edge-to-Edge
• LLQI — Last Listener Query Interval
• CN — Correspondent Node
• O&M — OAM and Management
• DDDS — Dynamic Delegation Discovery System
• GARP — Generic Attribute Registration Protocol
• ICE — Interactive Connectivity Establishment
• RAOB — Radiosonde Observation
• SLAAC — Stateless Address Autoconfiguration
• FEC — Forwarding Equivalence Class
• TRILL — TRansparent Interconnection of Lots of Links
• MSDP — Multicast Source Discovery Protocol
• XDR — External Data Representation protocol
• UNI — User-Network Interface
• DHCPV6 — Dynamic Host Configuration Protocol for IPv6
• AC — Attachment Circuit
• RSA — Rivest, Shamir, & Adleman
• JID — Jabber Identifier
• VCI — Virtual-Circuit Identifier
• DIO — DODAG Information Object
• PLCP — Physical Layer Convergence Procedure
• NCE — Network Connection Endpoint
• ORO — Option Request Option
• OSSI — Open Source Software Institute
• NLRI — Network Layer Reachability Information
• ERN — Eastern
• 6LR — 6LoWPAN Router
• PLR — Packet Loss Rate
• LBR — LLN Border Router

• CMS — Cryptographic Message Syntax
• P2P — Point-To-Point
• EMS — Energy Management Systems
• NAPTR — Naming Authority Pointer
• DS-LITE — Dual-Stack Lite
• CIN — Convective Inhibition
• MHP — Multimedia Home Platform
• TCN — Topology Change Notification
• DSAP — Destination Service Access Point
• SBM — Subnet Bandwidth Manager
• OFB — Output Feedback
• VDSL — Very High Speed Digital Subscriber Line
• MAP — Mobile Application Part
• CSI — Conditional Symmetric Instability
• BSR — Bootstrap Router
• LLQT — Last Listener Query Timer
• OLS — Optical Line System
• SRTCP — Secure Realtime Transport Control Protocol
• RCODE — No Expansion
• TFRC — TCP-Friendly Rate Control
• SIFS — Short InterFrame Space
• DPNSS — Digital Private Network Signaling System
• PT — Payload Type (ATM)
• BR — Border Router
• LKH — Logical Key Hierarchy
• EFM — Ethernet First Mile
• AAL5 — ATM Adaptation Layer 5
• MPLS-TP — MPLS Transport Profile
• CDN — Call-Disconnect-Notify
• PKIX — Public Key Infrastructure using X.509
• AHS — Additional Header Segment
• DAO — Destination Advertisement Object
• DSM — demand-side management
• MRRU — Maximum Reconstructed Reception Unit
• TSTM — Thunderstorm
• IBE — Identity-Based Encryption
• RTBH — Remote Triggered Black Hole
• UDDI — Universal Description, Discovery, and Integration
• ECM — Error Correction Model
• AWOS — Automated Weather Observation System
• CIST — Common and Internal Spanning Tree
• UTI — Universal Transport Interface
• SAN — Subject Alternative Name
• MPI — Minimum Picture Interval
• VPWS — Virtual Private Wire Service
• CPL — Call Processing Language
• SAML — Security Assertion Markup Language
• AMSS — Advanced Mobile Station Software
• P2MP — Point-To-Multipoint
• IPSEC — IP Security

• TEI — Terminal Endpoint Identifier
• 4G — 4th Generation Mobile network
• ADISC — Address Discovery Extended Link Service
• NIR — National Internet Registry
• NORM — NACK-Oriented Reliable Multicast
• VACM — View-based Access Control Model
• MO — Measurement Object
• RR — Resource Record
• CDP — Content Delivery Protocol
• B4 — Basic Bridging BroadBand
• MGCP — Multimedia Gateway Control Protocol
• RDMA — Remote Direct Memory Access
• CGN — Carrier-Grade NAT
• SAP — Serving Access Point
• CDR — Call Data Record
• SSN — Station Serial Number
• MG — Media Gateway
• CB — Cumulonimbus
• GSTN — General Switched Telephone Network
• INVOF — In vicinity of
• IBAKE — Identity-Based Authenticated Key Exchange
• VAD — Voice Activity Detection
• DAG — directed acyclic graph
• MFIB — Multicast Forwarding Information Base
• CATNIP — Common Architecture for Next Generation Internet Protocol
• LC — Link Connection
• SSRC — Synchronization Source
• TGT — ticket-granting ticket
• WWPN — World Wide Port Name (IBM ESS training/fiber channel)
• IDP — Identity provider
• LDI — Link Down Indication
• PIM — Protocol Independent Multicast
• SRP — Secure Remote Passwords
• ISATAP — Intra-Site Automatic Tunnel Addressing Protocol
• WWNN — World Wide Node Name
• MSL — Maximum Segment Lifetime
• CRISP — Cross Registry Internet Service Protocol
• MCV — Mesoscale Convective Vortex
• ARO — Address Registration Option
• IXFR — Incremental Zone Transfer
• PIM-SM — Protocol Independent Multicast-Sparse Mode
• ATA — Analog Telephone Adaptor
• BRDP — Border Router Discovery Protocol
• ILM — Incoming Label Mapping
• AFBR — Address Family Border Routers
• MS — Media Server
• RELAX NG — REgular LAnguage for XML Next Generation
• ISUP — ISDN User Part
• ERO — Explicit Route Object
• EOF — Extended Options and Flags

• PAC — Proxy Auto-Configuration
• EID — Endpoint Identifier
• ANG — Access Network Gateway
• PAL — Phase Alternation Line
• AAH — Abandoning All Hope
• IS-IS — Intermediate System to Intermediate System (routing protocol)
• UDP-LITE — User Datagram Protocol Lite
• ADSP — Author Domain Signing Practices
• RP — Rendezvous Point
• LSP — Label Switched Path
• LIP — Loop Initialization Primitive
• ACK — No Expansion
• SS7 — Signaling System 7
• MME — Mobile Management Entity
• EC2N — Elliptic Curve Group Over GF(2^N)
• UMTS — Universal Mobile Telecommunications Standard
• LFC — Level of Free Convection
• DTSN — Destination Advertisement Trigger Sequence Number
• EIP — Extended Internet Protocol
• AMR-NB — Adaptive Multi Rate - NarrowBand
• BDP — Bandwidth-Delay Product
• GAL — Generic Associated Channel Label
• EWMA — Exponentially Weighted Moving Average
• TFS — Time and Frequency Synchronization
• CP — Certificate Policy
• CALS — Computer-Aided Acquisition and Life-Cycle Support
• MT — Mobile Terminal
• PSS — Probabilistic Signature Scheme
• KLV — Key-Length-Value
• MR — Mobile Router
• LSP — Link State PDU (Protocol Data Unit)
• VSP — Voice Service Provider
• MAP — Mobility Anchor Point
• DNT — Do Not Track
• LDPC — Low-Density Parity Check
• AUID — Agent or User Identifier
• TF-EMC2 — Task Force on European Middleware Coordination and Collaboration
• UAC — User Agent Client
• PTK — Pairwise Transient Key
• AAD — Additional Authenticated Data
• SRV — Service Record
• EHI — Energy Helicity Index
• AFTR — Address Family Transition Router
• CCNR — Call Completion on No Reply
• EPP — Extensible Provisioning Protocol
• RAMS — Rapid Acquisition of Multicast Sessions
• NNI — Network-Network Interface
• CMAC — Cipher-based Message Authentication Code
• PDV — Packet Delay Variation
• CPP — Common Profile for Presence

• ERU — Effective Request URI
• 2.5G — Enhanced second generation cellular
• ESO — Extended Security Option
• IAID — Identity Association IDentifier
• CSAIL — Computer Science & Artificial Intelligence Laboratory
• NAT-T — Network Address Translation Traversal
• BSC — Base Station Controller
• DR — Designated Router (networking)
• ILNP — Identifier-Locator Network Protocol
• SSPI — Security Support Provider Interface
• MS-PW — Multi-Segment Pseudowire
• AAK — Authenticated Anticipatory Keying
• CT_IU — Common Transport Information Unit
• PGM — Pragmatic General Multicast
• DASH — Dynamic Adaptive Streaming over HTTP
• MSA — Message Submission Agent
• GCO — Global Concurrent Optimization
• PBB — Provider Backbone Bridge
• PA — Provider Assigned (IP address space assigned to a specific provider by IANA)
• DELT — Dual Ended Loop Test
• VRP — VLAN Registration Protocol
• SRR — Status Report Request
• XCAP — Extensible Markup Language (XML) Configuration Access Protocol
• DSN — Delivery Status Notification
• CRMF — Certificate Request Message Format
• E-LINE — Ethernet point-to-point connectivity
• IIH — Is-Is Hello
• SIPS — Session Initiation Protocol Secure
• LTE — Long-Term Evolution
• ALT — Alternative Logical Topology
• DRO — Discovery Reply Object
• LDML — Locale Data Markup Language
• CSNP — Complete Sequence Number PDU
• TPM — Transport Performance Metrics
• S/D — Source/Destination
• CMC — Certificate Management over CMS
• NSAP — Network Service Access Protocol
• NLM — Network Lock Manager
• FARP — Fibre Channel Address Resolution Protocol
• SAFI — Subsequent Address Family Identifier
• TUG — Tributary Unit Group
• SPVC — Switched Permanent Virtual Circuit
• 6PE — IPv6 Provider Edge
• IPDV — IP Packet Delay Variation
• Z — Zulu Time
• VT — Virtual Tributary (ATM)
• NEMO — Network Mobility
• EHLO — Extended Hello
• FTN — FEC-to-NHLFE
• AVT — Audio/Video Transport

• OLT — Optical Line Terminal
• CCE — Call-Completion Entity
• POS — PPP Over SONET
• EOR — Exclusive OR
• MHAE — Mobile-Home Authentication Extension
• TEP — tunnel endpoint
• AOA — At or Above
• LCAS — Link Capacity Adjustment Scheme
• MEG — Maintenance Entity Group
• NMP — Network Musical Performance
• LFSR — Linear Feedback Shift Register
• DRBG — deterministic random-bit generator
• BACP — Bonding Aggregation Control Protocol
• CEK — content-encryption key
• ERT — Expected Residual Time
• CAA — Cold Air Advection
• SHIM — Stanza Headers and Internet Metadata
• HOT — Home Test
• VCCV — Virtual Circuit Connectivity Verification
• ULA — Unique Local Address
• EFCI — Explicit Forward Congestion Indication (ATM)
• NBMA — Non-Broadcast Multi-Access
• CEMA — Connection Establishment for Media Anchoring
• ULJ — Upper-Level Jet
• IVL — Independent VLAN Learning
• UMB — Ultra Mobile Broadband
• HSTS — HTTP Strict Transport Security
• TPS — Transport Protocol Specific
• ROA — Route Origin Authorization
• CLP — Cell Loss Priority (ATM)
• SALT — Speech Application Language Tag
• DSACK — Duplicate Selective Acknowledgement
• SCVP — Simple Certificate Validation Protocol
• LSC — Link State Control
• APNIC — Asia Pacific Network Information Centre
• TLDP — Targeted LDP
• MLDV2 — Multicast Listener Discovery Version 2
• ZSK — Zone Signing Key (information technology)
• PTM — Pulse-Time Modulation
• IAP — Intermediate Anonymization Process
• VPIM — Voice Profile for Internet Mail
• ECMP — Equal-Cost Multipath
• MSCML — Media Server Control Markup Language
• GSAKMP — Group Secure Association Key Management Protocol
• NMM — Nonhydrostatic Mesoscale Model
• LEWP — Line Echo Wave Pattern
• AMID — Additive Increase Multiplicative Decrease
• EBM — Equipped Bit Mask
• TDMOIP — Time Division Multiplexing over IP
• FORCES — Forwarding and Control Element Separation Working Group

• IID — Interface Identifier
• TOIP — Real-time Text over Internet Protocol
• DIFS — Distributed Interframe Space
• 6LN — 6LoWPAN Node
• OGF — Open Grid Forum
• MKI — Master Key Identifier
• RLS — Resource List Server
• KARP — Keying and Authentication for Routing Protocols
• IS — Information Service
• LFIB — Label Forwarding Information Base
• TML — Transport Mapping Layer
• IGD — Internet Gateway Device
• OSN — Original Sequence Number
• RAO — Router Alert Option
• MWI — Message-Waiting Indicator
• SMUX — SNMP Multiplex Protocol
• QOP — Quality Of Protection
• ESRP — Emergency Service Routing Proxy
• TNP — TRILL Network Protocol
• RPSL — Routing Policy Specification Language
• ETR — Egress Tunnel Router
• NCE — Neighbor Cache Entry
• IMPP — Instant Messaging and Presence Protocol
• PTM — Point-To-Multipoint
• EISS — Extended Internal Sublayer Service
• RD — Router Discovery
• MT — Message Transfer
• AH — Authentication Header
• EVDO — Evolution-Data Optimized
• TX — Transmission
• SIPP — Simple Internet Protocol Plus
• SIMPLE — SIP for Instant Messaging and Presence Leveraging Extensions
• FDT — File Delivery Table
• DD — Database Description
• MRU — Maximum Receive Unit
• VBR-NRT — Variable Bit Rate - Non Real Time
• VPC — Virtual Path Connection (ATM)
• EFR — Enhanced Full Rate
• ASON — Automatically Switched Optical Network
• NA — Neighbor Advertisement
• CE — Control Element
• EBGP — External Border Gateway Protocol
• CARD — Candidate Access Router Discovery
• WRR — Weighted Round Robin
• OTP — One-Time Password authentication
• FRAND — fair, reasonable, and non-discriminatory
• SNI — Server Name Indication
• CNF — Cache-and-Forward
• AVP — Audio-visual Profile
• GRUU — Globally Routable User Agent URI

• AMDAR — Aircraft Meteorological Data Relay
• WLY — Westerly
• KSAK — Key Management Service Secret Authentication Key
• DTN — Delay-Tolerant Networking
• VLB — Valiant Load-Balancing
• INCITS — International Committee for Information Technology Standards
• SEND — SEcure Neighbor Discovery
• GSLB — Global Server Load Balancing
• LEDBAT — Low Extra Delay Background Transport
• ALTO — Application-Layer Traffic Optimization
• SNP — Sequence Number Packet
• 6LOWPANS — IPv6 over Low-Power Wireless Personal Area Networks
• OA — Ordered Aggregate
• SSK — Secret Signing Key
• SGW — Serving Gateway
• NRPN — Non-Registered Parameter Numbers
• LDN — Local Domain Name
• ESN — Extended Sequence Number
• DDNS — Dynamic DNS
• ARO — Access Router Option
• IDN — Internationalized Domain Name
• MF — More Fragments
• MCMS — Multimedia Cable Network System
• EML — Elevated Mixed Layer
• NSSA — Not-So-Stubby Area
• NRS — Name Resolution Service
• SDO — Standards Development Organization
• WEBDAV — Web Distributed Authoring and Versioning
• IHL — Internet Header Length
• HIT — Host Identity Tag
• STP — Secure Transfer Protocol
• NID — Namespace Identifier
• ESB — Extension Security Block
• IMIP — iCalendar Message-Based Interoperability Protocol
• SPKI — Simple Public Key Infrastructure
• PPSP — Peer-to-Peer Streaming Portocol
• RRO — Record Route Object
• TNCP — TRILL Network Control Protocol
• USRK — Usage-Specific Root Keys
• QG — Quasi-Geostrophic Analysis
• TU — Time Unit
• CCID — Congestion Control Identifier
• ASNGW — Access Service Network Gateway
• SSE — State Signaling Event
• NAPT — Network Address Port Translator
• MP2PE — Multi-Point to Point Emulation
• SPT — Shortest Path Tree
• FDB — Filtering Database
• LMA — Local Mobility Anchor
• ECMP — Electronic Commerce Messaging Protocol

• MUA — Message User Agent
• PDSN — Packet Data Serving Node
• ASE — Autonomous System External
• MCC — Mobile Country Code (telecommunications)
• UNSAF — UNilateral Self-Address Fixing
• BTMM — Back to My Mac
• SBN — Source Block Number
• PVP — Permanent Virtual Path
• LRM — Link Resource Manager
• WAA — Warm Air Advection
• BIS — Bump-in-the-Stack
• VSA — vendor-specific attribute
• XRI — Extensible Resource Identifier
• MLPP — Multi-Level Precedence and Preemption
• USM — User-based Security Model
• PLC — Packet Loss Concealment
• NAR — New-Access Router
• LSR — Label Switching Router
• VBR-RT — Variable Bit Rate - Real Time
• LSRR — Loose Source and Record Route
• HBA — Host-Based Authentication
• NID — Network Identifier
• PDU — Packet Data Unit or
• IPFRR — IP Fast Reroute
• IDRP — Inter-Domain Routing Protocol (ATM)
• OTASP — Over-The-Air Service Provisioning (telcommunications)
• ULP — Unequal Loss Protection
• TDD — Telecommunication Device for the Deaf
• SSV — Shared Secret Value
• CITE — Critical Ingress-to-Egress
• DRS — DGIWG Registry System
• CEP — Circuit Emulation over Packet
• TERENA — Trans-European Research and Education Networking Association
• SSN — Stream Sequence Number
• IU — Information Unit
• PBU — Proxy Binding Update
• LSC — Lambda Switch Capable
• GBS — Generic Bonding Sub-layer
• PETR — Proxy Egress Tunnel Router
• ODU — Optical Data Unit
• GEFS — Global Ensemble Forecast System
• VIL — Vertically Integrated Liquid
• PLMN — Public Land-based Mobile Network
• SRH — Storm Relative Helicity
• BIH — Bump-in-the-Host
• MN-FA — Mobile Node - Foreign Agent
• E-LSP — Explicitly TC-encoded-PSC LSP
• MRIB — Multicast Routing Information Base
• ALOC — Area Locator
• PLR — Point of Local Repair

• CMCC — Conference and Media Control Client
• MINE — Minimal Encapsulation in IP
• ARF — Abuse Reporting Format
• EPI — Educational Policy Institute
• ICC — ITU-T Carrier Code
• IPBX — IP Private Branch Exchange
• PKCS — Public-Key Cryptography Standards
• SFGMP — Source Filtering Group Management Protocol
• OCP — Objective Code Point
• MRT — Multi-Threaded Routing Toolkit
• PIDF — Presence Information Data Format
• HTML — Hyptertext Markup Language
• AQM — Active Queue Management
• ONC — Open Network Computing (Distributed Applications Architecture)
• XR — Extended Report
• RSVP-TE — RSVP - Traffic Engineering
• LISP — Locator-Identifier Split Protocol
• LCI — Location Configuration Information
• PKG — Private-Key Generator
• TTD — Throughput Test Device
• NSCP — Name Server Control Protocol
• KPML — Key Press Markup Language
• SIDR — Secure Inter-Domain Routing
• EC — Elliptic Curve
• CDNI — Content Distribution Network Interconnection
• OEO — optical-electronic-optical
• AFS — Authentication File System
• NFC — Normalization Form Composed
• CSPF — Constrained Shortest Path First
• MS — Manual Switch
• DP — Distribution Point
• BTU — Bonding Transmission Unit
• NFKC — Normalization Form KC
• VET — Virtual Enterprise Traversal
• DNA — Detecting Network Attachment
• PMD — Physical Medium Dependent
• AR — Address Resolution
• DUA — DASS 2 Extensions
• PMSI — Provider Multicast Service Interface
• CN — Client Node
• ISID — Initiator Session Identifier
• JRD — JSON Resource Descriptor
• UDVM — Universal Data/Voice Multiplexer
• ILV — Index-Length-Value
• AMR — An Adaptive Multi Rate
• ELY — EasterLY
• MKT — Master Key Tuple
• WPC — Weather Prediction Center
• CLEI — Common Language Equipment Identifier
• RDO — Route Discovery Option

• LCP — large content providers
• RBR — Realm Border Router
• CPIM — Common Presence and Instant Messaging
• LSDB — Link State Database Because
• RA — Routing Area
• FSPF — Fabric Shortest Path First
• RSIP — Realm Specific IP
• LOST — Location-to-Service Translation
• DANE — DNS-Based Authentication of Named Entities
• ITR — Ingress Tunnel Router
• LDH — letter-digit-hyphen
• HSPA — High-Speed Packet Access
• AS — Application Specification
• GSE — Generalized Structure Elements
• T-PE — Terminating Provider Edge
• RDDP — Remote Direct Data Placement Protocol
• ECAM — European Committee for Academic Middleware
• TSN — Transmission Sequence Number
• MIN — Mobile Identification Number
• 6TO4-PMT — 6to4 Provider Managed Tunnel
• SDES — Source Description
• GIST — General Internet Signaling Transport
• SEAL — Subnetwork Encapsulation and Adaptation Layer
• FCIP — Fibre Channel Over TCP/IP
• CR — Correspondent Router
• AXFR — Asynchronous Full Transfer
• DASS2 — Digital Access Signaling System 2
• RVS — Rendezvous Server
• VWP — VAD Wind Profile
• DSE — DSA-Specific Entry
• SAOL — Structured Audio Orchestra Language
• NETINF — Network of Information
• VBD — Voiceband Data
• JWT — Joint Working Team
• LMQI — Last Member Query Interval
• GTP — Generic Tunneling Protocol
• TDIM — Time-Division Inverse Multiplexing
• OPEX — Operating Expenses
• HAS — HTTP Adaptive Streaming
• MSS — Mobile Support Station
• PHOP — previous hop
• LSE — Label Stack Entry
• HOKEY — Handover Keying
• SATOP — Structure-Agnostic Time Division Multiplexing over Packet
• PMIPV6 — Proxy Mobile IPv6
• DSUSRK — Domain-Specific Usage-Specific Root Keys
• SAID — Security Association Identifier
• UTRAN — Universal Terrestrial Radio Access Network
• TSN — Test Support Network
• RTMP — Real Time Messaging Protocol

• CADES — CMS Advanced Electronic Signatures
• MSML — Media Server Markup Language
• MRB — Media Resource Broker
• XUI — XCAP User Identifier
• NMAG — new Mobility Access Gateway
• CES — Core-Edge Separation
• BPDU — Bridge PDU
• CCID — Content Collection IDentifier
• MOP — Mode of Operations
• ERX — EAP Re-authentication Extension
• APP — Application-specific functions
• RBRIDGE — Routing Bridge
• TSM — Transport Security Model
• LLS — Link-Local Signaling
• EVRC — Enhanced Variable Rate Codec
• REAP — Reachability Protocol
• CIPID — Contact Information in PIDF
• NS — Neighbor Solicitation
• DE — Discard Eligible
• EKU — Extended Key Usage
• IUA — ISDN Q.921-User Adaptations Layer
• TURN — Traversal Using Relay NAT
• ISPF — Incremental Shortest Path First
• TD — Tropical Depression
• MAS — Mobile Access Station
• DECADE — DECoupled Application Data Enroute
• VCAT — Virtual Concatenation
• RE — Redundancy Elimination
• SNIA — Storage Networking Industry Association
• AD — Authentic Data
• PCE — path computation element
• OMAP — Online Multimedia Authorization Protocol
• PIO — Prefix Information Option
• SRH — Source Routing Header
• LSB — Locator-Status-Bit
• IPHC — IP Header Compression
• CONS — Content distribution Overlay Network Service
• WEBRC — Wave and Equation Based Rate Control
• R2T — request-to-transmit
• MACE — Middleware Architecture Committee for Education
• ESI — Entity Status Inquiry
• NAM — North American Model
• SMSS — sender maximum segment size
• SSEO — SPC Storm-Scale Ensemble of Opportunity
• PRL — Potential Router List
• FRR — Fast Reroute
• RD — Route Distinguisher
• BCH — Bose, Ray-Chaudhuri, Hocquenghem
• IAX — Inter-Asterisk Exchange
• IBCF — Interconnection Border Control Function

• ECP — Elliptic Curve Group over GF[P]
• TOI — Transmission Object Identifier
• VCARD — No expansion
• LACNIC — Latin American and the Caribbean Internet Addresses Registry
• RSTP — Rapid Spanning Tree Protocol
• IMA — Inverse Multiplexing for ATM
• LOPS — Loss of Packet Synchronization
• XRD — Extensible Resource Descriptor
• SSRR — Strict Source and Record Route
• TAMP — Trust Anchor Management Protocol
• PSS — Packet-switched Streaming Service
• MNG — Mobile Network Gateway
• ITU-T — ITU Telecommunication standardization sector
• SDAT — Simple DNA address table
• CC-V — Continuity Check and Connectivity Verification
• HET — Header Extension Type
• XCON — Centralized Conferencing
• RFD — Reduced Function Device
• PMTUD — Path Mtu Discovery
• RDS — Resolution Discovery System
• HOTI — Home Test Init
• PAD — Peer Authorization Database
• LFN — Local Fixed Node
• AMS — authoritative mapping server
• COA — Change-of-Authorization
• LRDD — Link-based Resource Descriptor Document
• ESADI — End-Station Address Distribution Information
• SECG — Standards for Efficient Cryptography Group
• WSON — Wavelength Switched Optical Networks
• EPUB — Electronic Publication
• HRRR — High-Resolution Rapid Refresh model
• VDL — Valid Data Length
• SSV — Secret State Verifier
• NDN — Named Data Networking
• NUD — Neighbor Unreachability Discovery
• VMR — Variable Multi Rate
• AFRINIC — African Network Information Center
• NSIS — Next Steps In Signaling
• NDP — Neighbor Discovery Process
• WS — White Space
• 6LSA — IPv6 Label Switching Architecture
• PCC — Path Computation Client
• MSTP — Mobility Service Transport Protocol
• PI — Provider Independent
• CRTP — compressed RTP
• LFA — Loop-Free Alternate
• COT — Care-of Test
• CE — Customer Edge (IETF RFC 2547)
• UKMET — United Kingdom METeorological Office Model
• VMR-WB — Variable Multi Rate WideBand

• CAA — Certification Authority Authorization
• SLLAO — Source Link-Layer Address Option
• SMB — Session Management Broker
• CIS — Cryptographic Interoperability Strategy (US NSA)
• OPES — Open Pluggable Edge Services
• FCI — Feedback Control Information
• PMAG — previous Mobility Access Gateway
• OIPF — Open IPTV Forum
• OTAF — Over-the-Air Functionality
• FII — Forked Instance Identifier
• PBA — Proxy Binding Acknowledgement
• SWODY3 — Severe Weather Outlook - Day 3
• TESLA — Timed Efficient Stream Loss-Tolerant Authentication
• NSSL — National Severe Storms Labratory
• DGIWG — Defence Geospatial Information Working Group
• ER — EAP Re-authentication
• ULID — Upper-Layer Identifier
• CE — Congestion Experienced
• GDOI — Group Domain of Interpretation
• LFB — Logical Functional Block
• IBGP — Internal BGP
• CEID — Control Element ID
• PAR — previous access router
• XOR — Exclusive Or
• I-D — Internet-Draft
• PTI — Payload Type Identifier (ATM)
• XML-RPC — Extensible Markup Language-Remote Procedure Calling
• DSRK — Domain-Specific Root Key
• BSP — Bundle Security Protocol
• OTI — Object Transmission Information
• DTD — Deactivation Time Delay
• DLV — DNSSEC Lookaside Validation
• FAD — feature and attribute data
• RLMI — Resource List Meta-Information
• ERE — Extended Regular Expressions
• IPCP — IP Control Protocol
• OFIB — ordered forwarding information base
• IID — Instance Identifier
• NVC — Number of Virtual Components
• CLDR — Connectionless Data Response
• PMS — Physical Media Specific
• PI — Protocol Instantiation
• CDF — Comma-Delimited Format or
• ASE — amplifier spontaneous emission
• CRIO — Core Router-Integrated Overlay
• WM — Wireless Medium
• SACK — Selective Acknowledgment
• OLSR — Optimized Link State Routing
• ARKLATEX — ARKansas / LouisianA / TEXas region
• SAVI — Source Address Validation Improvement

• RPKI — Resource Public Key Infrastructure
• BTS — Base Tranceiver Station
• ILMI — Integrated Local Management Interface
• PEM1 — No Expansion
• SSM — Single Source Multicast
• COTI — Care-of Test Init
• SS-FSSI — Sender-Side FEC-Scheme-Specific Information
• OATC — Open Authentication Technology Committee
• SS-PW — Single-Segment Pseudowire
• PITR — proxy ingress tunnel router
• DTS — Decode Time Stamp
• IR — Initiation and Refresh
• LLID — Logical Link Identifier
• SRLG — Shared Risk Link Group
• HBA — Hash-Based Addresses
• UAM — Universal Access Method
• MT — Multiplier
• OMP — Optical Multi-Point
• TSI — Transport Session Identifier
• SPNEGO — Simple and Protected GSS-API Negotiation Mechanism
• SREF — Short Range Ensemble Forecast system
• TPGT — Target Portal Group Tag
• DAC — Duplicate Address Confirmation
• BRPC — Backward Recursive PCE-Based Computation
• RTX — Request Retransmission
• DHAAD — Dynamic Home Agent Address Discovery
• DELMARVA — DELaware / MARyland / VirginiA region
• EVRC-NW — Enhanced Variable Rate Narrowband-Wideband Codec
• GSPM — Generic Secure Password Method
• APM — Application Performance Measurement
• ICRP — Incoming-Call-Reply
• HOA — Home Address
• MODP — modular exponentiation group
• CHBH — Critical Hop-by-Hop
• LCCE — Logical Cluster Computing Environment
• SPME — Sub-Path Maintenance Element
• NLPID — Network Layer Protocol Identifier
• CSRC — Contributing Source
• SWODY1 — Severe Weather Outlook - Day 1
• RZ — Return-to-Zero
• CCNL — Call Completion on Not Logged-in
• DP — Data Plane
• TTSI — Text-To-Speech Interface
• CTR — Counter Mode
• LMQT — Last Member Query Timer
• GTSM — Generalized TTL Security Mechanism
• EDIINT — Electronic Data Interchange Internet Integration
• FMT — feedback message type
• PTSW — payload type switch
• ERP — EAP Re-authentication Protocol

• CID — Content Identifier
• PAA — PANA Authentication Agent
• PCEP — Path Computation Element Protocol
• CR-LDP — Constraint-based Routed Label Distribution Protocol
• SYN — No Expansion
• SAVP — Secure Audio-Visual Profile
• MSN — Master Sequence Number
• LCP — Location Configuration Protocol
• BN — Bundle Node
• MLDP — Multipoint LDP
• LIFO — last-in-first-out
• TSN — Trunk Switched Network
• PR-SCTP — Partially Reliable-Stream Control Transmission Protocol
• GLOP — No Expansion
• SPND — Secure Proxy Neighbor Discovery
• OXC — Optical Crossconnect
• PRR — Port-Range Router
• OIF — Outgoing Interface
• NUT — Network Under Test
• ROLL — Routing Over Low-Power and Lossy
• HELD — HTTP-Enabled Location Delivery
• DPS — Domain Pseudonym System
• ETS — Emergency Telecommunications Service
• TIAS — Transport Independent Application Specific)
• MC — Motion Compensation
• MRD — Multicast Router Discovery
• GMPLS — Generalized Multiprotocol Label Switching
• BCC — Bonding Communication Channel
• RPN — Registered Parameter Numbers
• ENUM — No Expansion
• DAR — Dynamic Alternate Routing
• BIA — Bump-in-the-API
• SLLA — Source Link-Layer Address
• IDNA — Internationalizing Domain Names in Applications
• MOSPF — Multicast Extensions to OSPF
• ASM — Any-Source Multicast
• DVI — No Expansion
• MCC — Management Communication Channel
• US-CERT — US Computer Emergency Readiness Team
• NSS — Namespace Specific String
• CC — Call Completion
• MPD — Media Presentation Description
• L-LSP — Label-Only-Inferred-PSC LSP
• IPPM — IP Performance Metrics
• POP — proof of possession
• RC — Routing Controller
• FSSI — FEC-Scheme-Specific Information
• ATD — Activation Time Delay
• KE — key establishment
• HPTP — HTTP-based Peer to Peer

• LWSP — linear whitespace
• AIA — Authority Information Access
• FA — forwarding adjacency
• NIH — Named Information for Humans
• LIS — Location Information Server
• ORCHID — Overlay Routable Cryptographic Hash Identifiers
• MINC — multicast inference of network characteristics
• DNSSEC — DNS Security
• KINK — Kerberized Internet Negotiation of Keys
• IPFIX — Ip Flow Information Export
• COMEDIA — Connection-Oriented Media
• DAR — Duplicate Address Request
• HMIPV6 — Hierarchical Mobile IPv6
• IPTV — No Expansion
• MIF — multiple interfaces
• RLOC — Routing Locator
• GLB — Global Locator Block
• UDPTL — UDP Transport Layer
• SNAP — Simple Notification and Alarm Protocol
• CIID — Carousel Instance IDentifier
• ANAT — Alternative Network Address Types
• NSE — Named Signaling Event
• MIP — Maintenance Entity Group Intermediate Point
• GPMD — General-Purpose Media Descriptor
• SNID — subnamespace identifier
• ALC — Asynchronous Layered Coding
• QRV — Querier's Robustness Variable
• ICRQ — Incoming-Call-Request
• GCKS — Group Controller/Key Server
• RAP — RAP id Refresh
• PTS — Presentation Time Stamps (MPEG systems)
• PRF — pseudorandom function
• SMR — Solicit-Map-Request
• WF — Wildcard-Filter
• CSP — Content Service Provider
• BCE — Bonding Channel Entity
• IMS — IP Multimedia Subsystems
• ION — IETF Operational Notes
• PRR — Policy Reserve Rule
• MED — Multi-Exit Discriminator
• OPEX — Operational Expediture
• PCMU — Pulse Coded Modulation
• ESI — Encoding Symbol ID
• ELOC — Endpoint Locator
• SCCRQ — Start-Control-Connection-Request
• LQI — Link Quality Indication
• PRNG — Pseudorandom Number Generator
• GSPD — Group Security Policy Database
• CBID — Crypto-Based Identifier
• LSA — Link State Advertisement

• ECMWF — European Centre for Medium-Range Weather Forecasts model
• DIS — DODAG Information Solicitation
• NSEC — NextSECure
• LSP — Loose Source Routing
• PC — Protocol Controller
• ESI — Error Source Identifier
• TLLAO — Target Link-Layer Address Option
• BCP — Bridging Control Protocol
• TLLA — Target Link-Layer Address
• BEK — bundle encryption key
• QQIC — Querier's Query Interval Code
• NSLP — NSIS Signaling Layer Protocol
• SMF — Standard MIDI File
• DF — Don't Fragment
• ESI — Energy Services Interface
• TLSP — TRILL Link State Protocol
• SFMT — sub-feedback message type
• VXML — VoiceXML
• CCM — Codec Control Messages
• WRAP — Web Resource Authorization Profiles
• RR — Receiver Report
• NETCONF — Network Configuration Protocol
• PNNI — Private Network-Network Interface
• CCXML — Call Control XML
• ECRTP — Enhanced Compressed RTP
• LSI — Local Scope Identifier
• SPKM — Simple Public-Key GSS-API Mechanism
• IEC — International Electronical Commission
• PHR — Per Hop Reservation
• DRB — Designated RBridge
• NSC — Network Simulation Cradle
• MEDIACTRL — Media Server Control
• TIMIP — Terminal Independent Mobile IP
• PMTU — Path Mtu Recovery
• BB — Bottleneck Bandwidth
• SCHAC — Schema for Academia
• NSP — Network-Specific Prefix
• SRP — Secure Routing Protocol
• PAI — P-Asserted-Identity
• PHIB — Previous Hop Insertion Block
• PS — Parametric Stereo
• PCN — Pre-Congestion Notification
• FG — forest guide
• LCAF — LISP Canonical Address Format
• CID — Carousel Instance Descriptor
• XLAT — translator
• CID — Context Identifier
• SIMCO — Simple Middlebox Configuration
• GAS — Generic Advertisement Service
• IW — Initial Window

• NSP — native service processing
• MD — Mesoscale Discussion
• CTM — Cellular Text Telephone Modem
• RIID — Rendezvous Point Interface ID
• RRT — Return Routability Test
• MPI — Multiprecision Integer
• RS — Retransmission Server
• SSE — Server Session End
• CPS — Certification Practices Statement
• PL — Protocol Layer
• PHP — Penultimate Hop Popping
• MSA — Mobility Service Authorizer
• NEWPRED — No Expansion
• DKIM — DomainKeys Identified Mail
• FIA — Form Interpretation Algorithm
• CID — Connection Identifier
• LDR — Link Delivery Ratio
• RSOO — Relay-Supplied Options option
• DS — Differentiated Services
• NCS — Network Control Signaling
• LW-IGMPV3 — Lightweight IGMPv3
• SWODY2 — Severe Weather Outlook - Day 2
• SB — Source Block
• CPA — Certification Path Advertisement
• ECP — Electronic CodeBook
• FE — Forwarding Element
• IUMM — In-line Unaware MRB Mode
• SLI — Set-Link-Info
• SPM — Secure Password Method
• MDS — Maximal Separable Distance
• PIB — Payload Integrity Block
• SI — softwire initiator
• DS — Delegation Signer
• OF — Objective Function
• MMA — MIDI Manufacturers Association
• RP — Relying Party
• MIP6 — Mobile IPv6
• XMLDSIG — XML Digital Signatures
• POI — Purge Originator Identification
• PSAMP — Packet Sampling
• SCCRP — Start-Control-Connection-Reply
• SNP — Subnetwork Point
• DAC — Dynamic Authorization Client
• EMA — External Measurement Agent
• SDNV — Self-Delimiting Numeric Value
• PS — Proxy Signature
• RJSS — Recovery Journal Sending Structure
• WSP — whitespace
• RR — Route Reflector
• CPS — Certification Path Solicitation

• CAP — Candidate Access Point
• FID — Flow ID
• PVT — Public Validation Token
• CBR — Constant Bitrate
• DPS — Distributed Programming System
• PD — Prefix Delegation
• PDS — Parameter Data Structure
• SCT — Sender Current Time
• BSM — Bootstrap Message
• CA — cryptographic authentication
• SC — Softwire Concentrator
• LW-MLDV2 — Lightweight MLDv2
• MR — Map Resolver
• CAB — Converged Address Book
• MT — Multi-Topology
• IV — Impairment Validation
• HIPV4 — hierarchical IPv4
• PB — Provider Bridge
• SR — sender report
• MIDCOM — Middlebox Communications
• MA — Multiple Attachments
• FI — Forwarding Indicator
• CTO — Congestion Timeout
• TS — Traffic Selector
• HAC — Home Agen Controller
• FIN — Not expanded
• PCB — Payload Confidentiality Block
• MPTCP — Multipath TCP
• TV — Type/Value
• RW — Restart Window
• CU — CUmulus cloud
• ASM — address-sharing mechanism
• SCS — Secure Cookie Sessions
• DA — Datamover Architecture
• VSS — Virtual Subnet Selection
• PT — posture transport
• PW — pseudowire
• SOP — Same-Origin Policy
• ERP — Enterprise Resource Provision
• PLC — Policy Lifetime Change
• FT — Feedback Target
• DPA — Destination Preference Attribute
• MA — Multicast Acquisition
• PA — provider-aggregated
• PB — Posture Broker

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