Abkürzungsverzeichnis
- AAL – ATM Adaption Layer
- AAM – Automatic Acoustics Management
- AARP – AppleTalk Address Resolution Protocol
- ABAP – Advanced Business Application Programming
- ABP – Alternating Bit Protocol
- ABR – Area Border Router
- AC – Alternating Current
- ACELP – Algebraic Code Excited Linear Prediction
- ACPI – Advanced Configuration and Power Interface
- ACR – Attenuation to Crosstalk Ratio
- Active PFC – Active Power Factor Correction
- ADB – Apple Desktop Bus
- ADMOSS – Advanced Multifunctional Operator Service System
- ADo 94 – Anschlussdose 94
- ADSL – Asymmetric Digital Subscriber Line
- AEI – Additional Equipment Interface
- AES – Advanced Encryption Standard
- AES/EBU – Audio Engineering Society/European Broadcast Union
- AFAIK – As far as I know
- AFFS – Advanced Fringe Field Switching
- AGP – Accelerated Graphics Port
- AIMM – AGP Inline Memory Module
- ALSA – Advanced LINUX Sound Architecture
- ALU – Arithmetic Logical Unit
- AMB – Advanced Memory Buffer
- AMI – Alternate Mark Inversion
- AMPS – Advanced Mobile Phone System
- AOC-E – Advice of Charge at the End of the Call
- AOCD – Advice of Charge During the Call
- AOCE – Advice of Charge at the End of the Call
- APIPA – Automatic Private IP Adressing
- ARI – Autofahrer Rundfunk Information
- ARI/FCI – Address Recognized Indicator / Frame Copied Indicator
- ARIN – American Registry for Internet Numbers
- ARP – Address Resolution Protocol
- AS – Autonomes System
- ASAP – as soon as possible
- ATM – Asynchronous Transfer Mode
- ATX – Advanced Technology Extended
- AUI – Attachment Unit Interface
- aux – auxiliary
- AVON – Amtliches Verzeichnis der Ortsnetzkennzahlen
- AWADo – Automatische Wechselschalter-Anschlussdose
- AWG – American Wire Gauge
- B-Kanal – Bearer Channel
- B8ZS – Bipolar 8-Zero Substitution
- BACnet – Building Automation and Control Networks
- BALUN – Balanced Unbalanced
- BBAE – Breitband-Anschlußeinheit
- BCC – Blind Carbon Copy
- Bd – Baud
- BERT – Bit Error Ratio Test
- BGA – Ball Grid Array
- BGP – Border Gateway Protocol
- BHCA – Busy Hour Call Attempts · Busy Hour Call Attempts
- BI – Breidbart-Index
- BIC – Bank Identifier Code
- BIOS – Basic Input Output System
- BNC – Bayonet Neill Concelman
- BNEP – Bluetooth Network Encapsulation Protocol
- BoB – Busy on Busy
- BOFH – Bastard Operator from Hell
- BOS – Behörden und Organisationen mit Sicherheitsaufgaben
- BPDU – Bridge Protocol Data Unit
- BRAS – Broadband Remote Access Server
- BRI – Basic Rate Interface
- BS – Backspace
- BTU – British Thermal Unit
- CABAC – Context Adaptive Binary Arithmetic Coding
- CAM – Conditional Access Module
- CAN-Bus – Controller Area Network Bus
- CAPI – Common ISDN Application Programming Interface
- CARP – Common Address Redundancy Protocol
- CB-Funk – Citizens Band
- CBWFQ – Class-Based Weighted Fair Queuing
- CC – Carbon Copy
- CCBS – Completion of Calls to Busy Subscriber
- CCD – Charge Coupled Device
- CCIE – Cisco Certified Internetwork Expert
- CCK – Complementary Code Keying
- CCNP – Cisco Certified Network Professional
- CCNR – Completion of Calls on No Reply
- ccTLD – Country Code Top Level Domain
- CCTV – Closed Circuit Television
- CD – Call Deflection · Call Deflection
- CDMA – Code Division Multiple Access
- CDP – Cisco Discovery Protocol
- CE-ATA – Consumer Electronics-Advanced Technology Attachment
- CEF – Cisco Express Forwarding
- Celenec – Europäisches Komitee für elektrotechnische Normung
- CELP – Code Excited Linear Prediction
- Centrex – Central Office Exchange
- CERT – Computer Emergency Response Team
- CFB – Call Forwarding Busy · Call Forwarding Busy
- CFNR – Call Forwarding No Reply · Call Forwarding No Reply
- CFU – Call Forwarding Unconditional
- CGI – Common Gateway Interface
- CGMP – Cisco Group Management Protocol
- CgPN – Calling Party Number
- CHAP – Challenge Handshake Authentication Protocol
- CheSe – Chef-Sekretariat Funktionen
- CI – Common Interface
- CIFS – Common Internet File System
- CIRC – Cross Interleave Reed-Solomon Code
- CL – CAS Latency
- CLIP – Calling Line Identification Presentation
- CLIP no screening – Calling Line Identification Presentation no screening
- CLIR – Calling Line Identification Restriction
- CLIRO – CLIR Override
- CLNP – Connectionless Network Protocol
- CMOS – Complementary Metal Oxide Semiconductor
- CMP – Certificate Management Protocol
- CMTS – Cable Modem Termination System
- CNG – Comfort Noise Generation
- CNIP – Calling Name Identification Presentation
- CNR – Communication and Networking Riser
- CO – Central Office
- COE – Central Office Equipment
- COLP – Connected Line Identification Presentation
- COLR – Connected Line Identification Restriction
- COPSK – Coded Octal Phase Shift Keying
- CPA – Chosen Plaintext Attack
- CPE – Customer Premises Equipment
- CPFSK – Continuous Phase Frequency Shift Keying
- CPU – Central Processing Unit
- CRC – Cyclic Redundancy Check
- CRIMM – Continuity Rambus Inline Memory Module
- CRT – Cathode Ray Tube
- CRU – Customer Replaceable Unit
- CSMA/CA – Carrier Sense Multiple Access / Collision Avoidance
- CSMA/CD – Carrier Sense Multiple Access/Collision Detection
- CSP – Catra Streaming Platform
- CST – Common Spanning Tree
- CSU/DSU – Channel Service Unit/Data Service Unit
- CT – Call Transfer
- CTI – Computer Telephony Integration
- CUPS – Common UNIX Printing System
- CVE – Common Vulnerabilities and Exposures
- CVSD – Continuous Variable Slope Delta Modulation
- D-Kanal – Data Channel
- DAI – Dynamic ARP Inspection
- DAU – Dümmster anzunehmender User
- dBm – Dezibel Milliwatt
- DCCP – Datagram Congestion Control Protocol
- DCOM – Distributed Component Object Model
- DDC – Display Data Channel
- DDI – Direct Dialing In
- DDoS – Distributed Denial of Service
- DDR – Double Data Rate
- DE-CIX – Deutscher Commercial Internet Exchange
- DECT – Digital Enhanced Cordless Telecommunications
- DFS – Dynamic Frequency Selection
- DHCP – Dynamic Host Configuration Protocol · Dynamic Host Configuration Protocol
- DHSG – Drahtlose Hör-Sprechgarnitur
- DIFS – Distributed Coordination Function Interframe Space
- DIMM – Dual Inline Memory Module
- DIP – Dual in-line package
- DiSEqC – Digital Satellite Equipment Control
- DIVF – Digitale Vermittlungsstelle Fern
- DIVO – Digitale Vermittlungsstelle Ort
- DIY – Do it yourself
- DLNA – Digital Living Network Alliance
- DLSW – Data Link Switching
- DM-Verseilung – Dieselhorst-Martin-Verseilung
- DMA – Direct Memory Access
- DMB – Digital Multimedia Broadcasting
- DMT – Discrete Multitone
- DMZ – DeMilitarized Zone
- DNS – Domain Name System
- DOA – dead on arrival
- DOCSIS – Data Over Cable Service Interface Specification
- DoD – Department of Defense
- Domain Pop – Domain Popularität
- DoV – Data over Voice
- DQDB – Distributed Queue Dual Bus
- DRR – Dynamic Rate Repartitioning
- DSCP – Differentiated Services Code Point
- DSL – Digital Subscriber Line
- DSLAC – Digital Subscriber Line Access Concentrator
- DSLAM – Digital Subscriber Line Access Multiplexer
- DSS1 – Digital Subscriber System 1
- DSSS – Direct Sequence Spread Spectrum
- DTMF – Dual Tone Multiple Frequency
- DTP – Dynamic Trunking Protocol
- DTR – Data Terminal Ready
- DUNDi – Distributed Universal Number Discovery
- DVB-C – Digital Video Broadcasting - Cable
- DVB-H – Digital Video Broadcasting - Handheld
- DVB-S – Digital Video Broadcast - Satellite
- DVB-S2 – Digital Video Broadcasting - Satellite 2
- DVB-T – Digital Video Broadcasting-Terrestrial
- DVI – Digital Visual Interface
- DVMRP – Distance Vector Multicast Routing Protocol
- DWDM – Dense Wavelength Division Multiplexing
- DynDNS – Dynamisches DNS
- EAP – Extensible Authentication Protocol
- EAPoL – EAP over LAN
- EBCDIC – Extended Binary Coded Decimal Interchange Code
- ECC – Error Correction Code
- ECMA – European Computer Manufacturers Association
- ECP – Encryption Control Protocol · Extended Capabilities Port
- EDFA – Erbium-Doped Fiber Amplifier
- EDGE – Enhanced Data Rates for GSM Evolution
- EDIFACT – Electronic Data Interchange For Administration, Commerce and Transport
- EDO-RAM – Extended Data Output RAM
- EEPROM – Electrically Eraseable Programmable Read Only Memory
- EFR – Enhanced Full Rate Sprachkodierung
- EIB – European Installation Bus
- EICAR – European Institute for Computer Antivirus Research
- EIGRP – Enhanced Interior Gateway Routing Protocol
- ELFEXT – Equal Level Far End Crosstalk
- EMS – Enhanced Messaging Service
- ENUM – Telephone Number Mapping
- EPP – Enhanced Parallel Port
- EPT – Extended Page Tables
- ERP – Effective Radiated Power
- eSATA – External SATA
- ESCON – Enterprise System CONnection
- ETSI – European Telecommunications Standards Institute
- EXIF – Exchangeable Image File Format
- FAQ – Frequently Asked Questions
- Fax – Telefax
- FB-DIMM – Fully Buffered DIMM
- FCIP – Fiber Channel over IP
- FCS – Frame Check Sequence
- FDDI – Fiber Distributed Data Interface
- FDX – Full Duplex
- FECN – Forward Explicit Congestion Notification
- FEXT – Far-End Crosstalk
- FHSS – Frequency Hopping Spread Spectrum
- FI-Schalter – Fehlerstromschutzschalter
- FLI4L – floppy isdn for linux
- FOA – Form of Authorization
- FoIP – Fax over IP
- fps – Frames per Second
- FQDN – Fully Qualified Domain Name
- FQTN – Fully Qualified Telephone Number
- FRNC – Flame Retardant Non Corrosive
- FRU – Field Replaceable Unit
- FSB – Front Side Bus
- FTP – File Transfer Protocol
- FTPS – FTP over SSL
- FTTB – Fiber to the Building
- FTTC – Fiber To The Curb
- FTTD – Fiber to the Desk
- FTTH – Fibre To The Home
- FUD – Fear, Uncertainty and Doubt
- FYA – For Your Amusement · For Your Amusement
- GAP – Generic Access Profile
- GBIC – Gigabit Interface Converter
- GFSK – Gaussian Frequency Shift Keying
- GICC – German ISO 8583 Credit Card Protocol
- GIMP – GNU Image Manipulation Program
- GLBP – Gateway Load Balancing Protocol
- GMRP – GARP Multicast Registration Protocol
- GMSK – Gaussian Minimum Shift Keying
- GND – Ground
- GPRS – General Packet Radio Service
- GPS – Global Positioning System
- GRE – Generic Routing Encapsulation
- GSM – Global System for Mobile Communications
- GUI – Graphical User Interface
- GVRP – Generic VLAN Registration Protocol
- HACMP – High Availability Cluster Multi-Processing
- HAP – High Altitude Platform
- HBCI – Home Banking Computer Interface
- HCNA – HPNA over Coax
- HDB3 – High Density Bipolar 3 Code
- HDLC – High-Level Data Link Control
- HDMI – High Definition Multimedia Interface
- HDTV – High Definition Television
- HE – Höheneinheit
- HEC – Header Error Check
- HFS – Hierarchical File System
- HIPERLAN – High Performance Radio Local Area Network
- HOL – Head-of-Line-Blocking
- HomePNA – Home Phoneline Networking Alliance
- HSCSD – High Speed Circuit Switched Data
- HSDPA – High Speed Downlink Packet Access
- HSRP – Hot Standby Router Protocol
- HSSDC-Stecker – High Speed Serial Data Connection
- HSUPA – High Speed Uplink Packet Access
- HTML – HyperText Markup Language
- HTPC – Home Theater Personal Computer
- HTTP – Hypertext Transfer Protocol
- HTTPS – Hypertext Transfer Protocol Secure
- HYTAS – Hybrides Teilnehmer Anschlusssystem
- IANAL – I Am Not A Lawyer
- IAPP – Inter Access Point Protocol
- IAX – InterAsterisk eXchange
- IBSS – Independent Basic Service Set
- ICANN – Internet Corporation For Assigned Names and Numbers
- ICMP – Internet Control Message Protocol
- ICS – Internet Connection Sharing
- IDE – Integrated Disc Electronic
- IDEA – International Data Encryption Algorithm
- IDS – Intrusion Detection System
- IEEE – Institute of Electrical and Electronics Engineers
- IETF – Internet Engineering Task Force
- iFCP – Internet Fiber Channel Protocol
- IFG – Inter Frame Gap
- IFS – Inter Frame Spacing
- IGMP – Internet Group Management Protocol
- IGRP – Interior Gateway Routing Protocol
- iLBC – Internet Low Bitrate Codec
- IMAP – Internet Message Access Protocol
- IMEI – International Mobile Equipment Identity
- IMHO – in my humble opinion
- IMSI – International Mobile Subscriber Identity
- IOS – Internetwork Operating System
- IP – Internet Protocol
- IP-Pop – IP-Popularität
- IPS – Intrusion Prevention System
- IPTV – Internet Protocol Television
- IPX – Internetwork Packet Exchange
- IPXF – Internetwork Packet eXchange Fragmentation
- IRC – Internet Relay Chat
- IrDA – Infrared Data Association
- IRDP – ICMP Router Discovery Protocol
- IS-IS – Intermediate System-to-Intermediate System
- ISAKMP – Internet Security Association and Key Management Protocol
- iSCSI – Internet SCSI
- ISDN – Integrated Services Digital Network
- ISL – Inter Switch Link
- ISM – Industrial, Scientific and Medical
- ISP – Internet Service Provider
- IVR – Interactive Voice Response
- JBOD – Just a Bunch Of Disks
- JEDEC – Joint Electron Device Engineering Council
- JPEG – Joint Photographic Experts Group
- KiB – Kibibyte
- L2TP – Layer 2 Tunneling Protocol
- LAA – Locally Administered Address
- LACP – Link Aggregation Control Protocol
- LAPD – Link Access Procedure D
- LART – Luser Attitude Readjustment Tool
- LCP – Link Control Protocol
- LCR – Least Cost Routing
- LCT – Local Craft Terminal
- LDAP – Lightweight Directory Access Protocol
- LDIF – LDAP Data Interchange Format
- LEPS – LANCOM Enhanced Passphrase Security
- LER – Label Edge Router
- LFH60 – Low Force Helix 60
- Link Pop – Link Popularität
- LLDP – Link Layer Discovery Protocol
- lm – Lumen
- LMTP – Local Mail Transfer Protocol
- LNB – Low Noise Block Converter
- LNC – Low Noise Converter
- LOL – laughing out loud
- LPD – Line Pinter Daemon
- LRE – Long Range Ethernet
- LSA – löt-, schraub und abisolierfreie Anschlusstechnik
- LWL – Lichtwellenleiter
- MABEZ – Massenverkehr zu bestimmten Zielen
- MANet – Mobiles Ad-hoc-Netzwerk
- MAU – Multistation Access Unit
- MCID – Malicious Call Identification
- MD5 – Message Digest Algorithm 5
- MEGACO – Media Gateway Control Protocol
- MFG – Multifunktionsgerät
- MIB – Management Information Base
- MiB – Mebibyte
- MIDI – Musical Instrument Digital Interface
- MIME – Multipurpose Internet Mail Extensions
- MIMO – Multiple Input, Multiple Output
- MitM – Man-In-The-Middle-Angriff
- MLPPP – Multilink PPP
- MLT-3 – Multilevel Transmission Encoding 3
- MMC – Multimedia Card
- MMF – Multimode-Faser
- MMS – Multimedia Messaging Service
- MMS43 – Modified Monitored Status Code
- MNP – Microcom Networking Protocol
- MoCA – Multimedia over Coax Alliance
- MoH – Music on Hold
- MOS – Mean Opinion Score
- MOSPF – Multicast OSPF
- MP-MLQ – Multipulse Maximum Likelihood Quantization
- MPLS – Multiprotocol Label Switching
- MPPC – Microsoft Point-To-Point Compression Protocol
- MPPE – Microsoft Point-To-Point Encryption
- MRTG – Multi Router Traffic Grapher
- MSISDN – Mobile Subscriber ISDN Number
- MSN – Multiple Subscriber Number
- MSS – Maximum Segment Size
- MST – Multiple Spanning Tree Protocol
- MTBF – Mean Time Between Failures
- MTTR – Mean Time To Repair
- MTU – Maximum Transmission Unit
- MVCD – Mole Video-CD
- MWI – Message Waiting Indication
- NA – Numerische Apertur
- NANOG – North American Network Operators Group
- NAS – Network Attached Storage
- NAT – Network Address Translation
- NBAR – Network-Based Application Recognition
- NBMA – Non-Broadcast Multiple Access
- NCP – Netware Core Protocol
- NCQ – Native Command Queuing
- NDIS – Network Driver Interface Specification
- NDMP – Network Data Management Protocol
- NetBEUI – NetBIOS Extended User Interface
- NetBIOS – Network Basic Input Output System
- NEXT – Near End Crosstalk
- NFC – Near Field Communication
- NFS – Network File System
- NGOSS – New Generation Operations Support System
- NIC – Network Interface Card
- NLPID – Network Layer Protocol Identifier
- NLSP – NetWare Link-Services Protocol
- NMEA – National Marine Electronics Association
- NNTP – Network News Transfer Protocol
- NOC – Network Operations Center
- Np – Neper
- NRPC – Notes-RPC
- NRZI – Non Return to Zero Invers
- NSSA – Not-So-Stubby Area
- NTBA – Network Termination for Basic Rate Access
- NTBBA – Netz-Terminationspunkt Breitbandanschluss
- NTFS – New Technology File System
- NTP – Network Time Protocol
- NTPM – Network Termination for Primary Rate Multiplex Access
- NTR – Nationale Teilnehmerrufnummern
- NVP – Nominal Velocity of Propagation
- NVRAM – Non Volatile Random Access Memory
- OBEX – Object Exchange Protocol
- OC – Optical Carrier Level
- ODBC – Open Database Connectivity
- ODI – Open Data-Link Interface
- ODT – On Die Termination
- OEM – Original Equipment Manufacturer
- OFDM – Orthogonal Frequency Division Multiplexing
- ONKZ – Ortsnetzkennzahl
- ONU – Optical Network Unit
- OPAL – Optische Anschlussleitung
- OQPSK – Offset Quadrature Phase Shift Keying
- ORSN – Open Root Server Network
- OSD – On Screen Display
- OSPF – Open Shortest Path First
- OTI – Original Transmitter Identification
- PABX – Private Automatic Branch Exchange
- PADI – PPPoE Active Discovery Initiation
- PADO – PPPoE Active Discovery Offer
- PAgP – Port Aggregation Protocol
- PAM5 – Pulsamplitudenmodulation 5
- PAP – Password Authentication Protocol
- PBX – Private Branch Exchange
- PCB – Printed Circuit Board
- PCMCIA – Personal Computer Memory Card International Association
- PDH – Plesiochrone Digitale Hierarchie
- PDU – Power Distribution Unit · Power Distribution Unit
- PEAP – Protected EAP
- PEG – PCI Express for Graphics
- PESQ – Perceptual Evaluation of Speech Quality
- PFS – Perfect Forward Secrecy
- PG – Stahlpanzerrohrgewinde
- PIM – Protocol Independent Multicast
- PIMF – PiMf-Kabel
- Ping – Packet InterNet Groper
- PLC – Packet Loss Concealment · Powerline Communication
- PNG – Portable Network Graphics
- POCSAG – Post Office Code Standardisation Advisory Group
- PoE – Power over Ethernet
- POF – Polymer Optical Fiber
- POP3 – Post Office Protocol Version 3
- PoS – POS-Terminal
- POST – Power on Self Test
- POTS – Plain Old Telephone Service
- PPP – Point-to-Point Protocol
- PPPoA – PPP over ATM
- PPPoE – PPP over Ethernet
- PPTP – Point-to-Point Tunneling Protocol
- PR – Page Rank · Partial Rerouting
- PRI – Primary Rate Interface
- PRT – Payphone Recognition Tone
- PSDN – Packet Switched Data Network
- PTT – Push-to-Talk
- PVST – Per-VLAN Spanning Tree
- PXE – Preboot Execution Environment
- QAM – Quadraturamplitudenmodulation
- QoS – Quality of Service
- QSIG – Q-interface signalling protocol
- QUXGA – Quad Ultra Extended Graphics Array
- RACF – Resource Access Control Facility
- RADIUS – Remote Authentication Dial-In User Service
- RAID – Redundant Array of Inexpensive Disks
- RAM – Random Access Memory
- RAMDAC – Random Access Memory Digital/Analog Converter
- RDMA – Remote Direct Memory Access
- RDP – Remote Desktop Protocol
- RDRAM – Rambus Dynamic Random Access Memory
- RED – Random Early Detection
- RFC – Request for Comments
- RFID – Radio Frequency Identification
- RIP – Routing Information Protocol
- RJ-45 – Registered Jack-45
- RJ11 – RJ11
- RMON – Remote Monitoring
- RMS – Root Mean Square
- RoCEv2 – RDMA over Converged Ethernet v2
- ROFL – Rolling On the Floor Laughing
- ROHC – Robust Header Compression
- RoHS – Restriction of Hazardous Substances
- ROM – Read-Only-Memory
- ROT13 – Rotation 13
- RP-TNC – Reverse Polarity Threaded Neill Concelman
- RPC – Remote Procedure Call
- RSA – Rivest-Shamir-Adleman
- RSTP – Rapid Spanning Tree Protocol
- RSVP – Resource Reservation Protocol
- RTFM – Read the fucking manual
- RTP – Real-Time Transport Protocol
- RTSP – Real-Time Streaming Protocol
- RTT – Round Trip Time
- S/P-DIF – Sony/Philips Digital Interface
- SAN – Storage Area Network
- SAR – Spezifische Absorptionsrate
- SAS – Serial Attached SCSI
- SASPO – Soon As Possible
- SATA – Serial ATA
- SCART – Syndicat des Constructeurs d'Appareils Radiorecepteurs et Televiseurs
- SCCP – Skinny Client Control Protocol
- SCPC – Single Channel per Carrier
- SCSI – Small Computer System Interface
- SDH – Synchrone Digitale Hierarchie
- SEO – Suchmaschinenoptimierung
- SERPs – Search Engine Results Pages
- SFP – Small formfactor pluggable
- SHDSL – Symmetric High-Bitrate Digital Subscriber Loop
- SIFS – Short Inter Frame Space
- SILC – Secure Internet Live Conferencing
- SIM – Subscriber Identification Module
- SIN – Ships in the Night
- SIP – Session Initiation Protocol
- SIPS – Session Initiation Protocol Secure
- SLA – Service Level Agreement
- SLIP – Serial Line Internet Protocol
- SLP – Service Location Protocol
- SMART – Self-Monitoring, Analysis and Reporting Technology
- SMB – Server Message Block
- SMF – Singlemode-Faser
- SMLT – Split Multi-Link Trunking
- SMS – Short Message Service
- SMTP – Simple Mail Transfer Protocol
- SNAFU – Situation normal, all fucked-up
- SNAP – Sub Network Access Protocol
- SNMP – Simple Network Management Protocol
- SNTP – Simple Network Time Protocol
- SO-DIMM – Small Outline DIMM
- SOCKS – Secure Socket
- SOHO – Small Office Home Office
- SONET – Synchronous Optical Network
- SPB – Shortest Path Bridging
- SPD – Serial Presence Detect
- SPF – Sender Policy Framework
- SPI – Stateful Packet Inspection
- SPIT – Spam over Internet Telephony
- SPoF – Single Point of Failure
- SPX – Sequence Packet Exchange
- SRA – Seamless Rate Adaption
- SS7 – Signaling System 7
- SSD – Solid State Disk
- SSDP – Simple Service Discovery Protocol
- SSH – Secure Shell
- SSI – Server Side Includes
- SSID – Service Set Identifier
- SSL – Secure Sockets Layer
- STP – Spanning Tree Protocol (STP) — Schleifenschutz in geswitchten Netzen
- stp – Multiple Spanning Tree Protocol
- STUN – Simple Traversal of UDP Through NATs
- SVCD – Super Video Compact Disc
- SVGA – Super Video Graphics Array
- SWIFT – Society for Worldwide Interbank Financial Telecommunication
- SXGA – Super Extended Graphics Array
- T9 – Text on 9 keys
- TACACS – Terminal Access Controller Access Control System
- TAE – Telekommunikations-Anschluss-Einheit
- TAL – Teilnehmeranschlussleitung
- TAN – Transaktionsnummer
- TCAM – Ternary Content Addressable Memory
- TCN – Topology Change Notification
- TCO – Total Cost of Ownership
- TCP – Transmission Control Protocol
- TDP – Thermal Design Power
- TEI – Terminal Endpoint Identifier
- TETRA – Terrestrial Trunked Radio
- TFTP – Trivial File Transfer Protocol
- TIA – Thanks in advance
- TKIP – Temporal Key Integrity Protocol
- TLS – Transport Layer Security
- TNC – Threaded Neill Concelman Steckverbinder
- TOE – TCP Offload Engine
- TPC – Transmit Power Control
- tRCD – RAS to CAS Delay
- TTL – Time To Live
- TURN – Traversal Using Relay NAT
- UAA – Universally Administered Address
- UDLD – UniDirectional Link Detection
- UDP – User Datagram Protocol
- UIFN – Universal International Freephone Numbers
- UMA – Unlicensed Mobile Access
- UMTS – Universal Mobile Telecommunications System
- UPN – Umgekehrte Polnische Notation
- UPnP – Universal Plug and Play
- UPS – Uninterruptable Power Supply
- uRPF – Unicast Reverse Path Forwarding
- USB – Universal Serial Bus
- USB OTG – USB On-The-Go
- UTP – Unshielded Twisted Pair
- UWB – Ultra Wideband
- UXGA – Ultra Extended Graphics Array
- VAD – Voice Activity Detection
- VBR – Variable Bit Rate
- VCI – Virtual Channel Identifier
- VCSEL – Vertical-Cavity Surface-Emitting Laser
- VDSL – Very High Data Rate Digital Subscriber Line
- ViMF – Vierer in Metallfolie
- VMPS – VLAN Management Policy Server
- VoB – Voice over Broadband
- VoD – Video on Demand
- VoIP – Voice over IP
- VoVPN – Voice over Virtual Private Network
- vPC – vPC
- VPDIs – Virtual-Processor Identifiers
- VPI – Virtual Path Identifier
- VPN – Virtual Private Network
- VQP – VLAN Query Protocol
- VRRP – Virtual Router Redundancy Protocol
- VSAT – Very Small Aperture Terminal
- VTP – VLAN Trunking Protocol
- WAN – Wide Area Network
- WAP – Wireless Application Protocol
- WDS – Wireless Distribution System
- WEP – Wired Equivalent Privacy
- Wi-Fi – Wireless Fidelity
- WINNER – Wireless World Initiative New Radio
- WINS – Windows Internet Name Service
- WISPr – Wireless Internet Service Provider Roaming
- WLAN – Wireless LAN
- WMAN – Wireless Metropolitan Area Network
- WOL – Wake on LAN
- WORM – Write Once Read Many
- WPA – Wi-Fi Protected Access
- WPAN – Wireless Personal Area Network
- WRAP – Wireless Router Application Platform
- WRED – Weighted Random Early Detection
- WSXGA – Wide SXGA
- WTLS – Wireless Transport Layer Security
- WUSB – Wireless USB
- WUXGA – Wide Ultra EXtended Graphics Array
- WWAN – Wireless Wide Area Network
- WXGA – Wide Extended Graphics Array
- XDMCP – X Display Manager Control Protocol
- Xerox PARC – Xerox Palo Alto Research Center
- XETRA – Exchange Electronic Trading
- XGM – Cross Gain Modulation
- XLR – XLR-Steckverbindung
- XML – Extensible Markup Language
- XORP – eXtensible Open Router Platform
- YBCO – Yttrium Barium Copper Oxide
- ZIF – Zero Insertion Force
- ZTP – Zero-touch Provisioning