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AAL ATM Adaptation Layer
ABR Available Bit Rate
ACK Acknowledgement
ACR Allowed Cell Rate
ACSE Association Control Service Elements
ACTS Advanced Communication Technologies and Services
ADC Analog Digital Converter
ADR Adaptive Dynamic Routing
AE (Anwendungseinheit) Application Entity
AFD Avalanche Fotodiode
ALOHA first Radio Packet Broadcasting Network (Hawaii)
AMI Alternating Mark Insertion
ANS Advanced Networks Service
ANSI American National Standards Institute
AOL American OnLine
API Application Programming Interface
ARP Address Resolution Protocol
ARPA Advanced Research Projects Agency
ARPANET Advanced Research Projects Agency NETwork
ARQ Automatic Repeat reQuest
ASCII American Standard Code for Information Interchange
ASE Application Service Element
ASN.1 Abstract Syntax Notation one
AT ATtention Code (AT-Befehlssatz)
ATDM Asynchronous time Division Multiplexing
ATM Asynchronous Transfer Mode
AU Access Unit
AUI Attachment Unit Interface


BAS Basic Activity Subset
BBS Bulletin Board System
BCC Headerfeld einer Mail nach RFC822
BCS Basic Combined Subset
BER Basic Encoding Rules
BGP Border Gateway Protocol
B-ISDN Broadband Integrated Service Digital Network
Bisync binary synchronous communication
BITNET Because It's Time NETwork
BOOTP BOOTstrap Protocol
bps Bit per second
BSC Binary Synchronous Control
BSC Binary Synchronous Communication
BSD UNIX Berkeley Software Distribution UNIX
BSS Basic Synchronized Subset
BT Burst Tolerance
Btx Bildschirmtext
BZT Bundesamt für Zulassungen in der Telekommunikation


CAC Connection Admission Control
CAPI Common Application Programming Interface
CASE Common Application Service Element
CBR Constant Bit Rate
Cc. Carbon copy
CC Cell Controller
CCITT Comité Consultatif Internationale de Télégraphique et Téléphonique
CCIRN Coordinating Committee for Intercontinental Research Networking
CCR Commitment, Concurrence and Recovery
CCRSE CCR Service Element
CDV Cell Delay Variation
CDVT Cell Delay Variation Tolerance
CEP Connection End Point
CFV Call For Votes
CGI Common Gateway Interface
CHILL CCITT High-Level Language
CI Congestion Indication
CIS CompuServe Information Service
CIDR Classless Inter-Domain Routing
CL ConnectionLess
CLNP ConnectionLess Network Protocol
CLP Cell Loss Priority
CLR Cell Loss Ratio
CMIP Common Management Information Protocol
CMIS Common Management Information Service
CMOT Common Management information service and protocol Over TCP/IP
CODEC COdierer/DECodierer
CO Connection Oriented
COM Communication Port
CRC Cyclic Redundancy Check
CSCW Computer Supported Cooperative Working
CSMA Carrier Sense Multiple Access
CSS Cell Site Switch
CTD Cell Transfer Delay


DAG Datenanschlußgerät
DAN Desk Area Network
DAR Dynamic Alternate Routing
DARPA Defense Advanced Research Projects Agency
DATEX DATa Exchange
DATEX-P DATEX mit Paketvermittlung
DBR Deterministic Bit Rate
DCE Data Communications Equipment
DDCMP Digital`s Data Communication Message Protocol
DDN Defense Data Network
DECT Digital European Cordless Telecommmunications (protocol)
DEE DatenEndEinrichtung
DES Data Encryption Standard
DFN Deutsches ForschungsNetz
DFÜ DatenFernÜbertragung
DGCRA Dynamic Generic Cell Rate Algorithm
DHCP Dynamic Host Configuration Protocol
DIB Directory Information Base
DISC DISConnection
DLE Data Link Escape
DMA Direct Memory Access
DNA/DECNET Digital Network Architecture
DNS Domain Name Service
DQDB Distributed Queue Dual Bus
DS Directory Service
DSS1 Digital Subscriber System 1
DTE Data Terminating Equipment
DU Data Unit
DÜE Datenübertragungseinrichtung
DVMPR Distance Vector Multicast Routing Protocol


E-Mail Electronic Mail
E-Zine Electronic Fanzine
EACK Extended ACKnowledgement
EARN European Academic Research Network
EBCDIC Extended Binary Coded Decimal Interchange Code
ECB Ethernet Control Board
EDS Elektronisches Datenvermittlungssystem
EFF Electronic Frontier Foundation
EGP Exterior Gateway Protocol
EIA Electronics Industry Association
EMD Edelmetallmotordrehwähler
ER Explicit Rate
ES-IS End System to Intermediate System
ETB Elektronisches TelefonBuch
FADU File Access Data Unit
FAQ Frequently Asked Questions
FCCSET Federal Coordinating Council for Science, Engineering and Techn.
FCS Frame Checking Sequence
FD Fotodiode
FDDI Fiber Distributed Data Interface
FDM Frequence Division Multiplexing
FEC Forward Error Correction
FIX FIXed Routing
FTAM File Transfer, Access and Management
FTP File Transfer Protocol
FYI For Your Information


GAN Global Area Network
GCRA Generic Cell Rate Algorithm
GGP Gateway to Gateway Protocol
GOSIP Government Open Systems Interconnection Profile
GPI Gebührenzählimpuls der Deutschen Telekom
GSM Global System for Mobile communications


HDLC High level Data Link Control
HEPnet High Energy Physics Network
HIPPI HIgh Performance Parallel Interface
HTML HyperText Markup Language
HTTP HyperText Transport Protocol


IAB Internet Activity Board
IAB Internet Architecture Board
IANA Internet Assigned Number Authority
IBN Integrated Broadband Network
IBT Intrinsic Burst Tolerance
ICCB Internet Control and Configuration Board
ICI Interface Control Information
ICMP Internet Control Message Protocol
IDN Integriertes Text- und Datennetz
IDU Interface Data Unit
IEN Internet Engineering Notes
IEEE Institute of Electrical and Electronics Engineers
IETF Internet Engineering Task Force
IESG Internet Engineering Steering Group
IGP Interior Gateway Protocol
IGMP Internet Group Management Protocol
IMAP Interactive Mail Access Protocol
IMP Interface Messages Processor
INOC Internet Network Operations Center
INTERNIC INTERnet Network Information Center
IP Internet Protocol
IPM InterPersonal Messaging
IPng IP- the Next Generation (IPv6)
IPX Inter Packet eXchange
IRC Internet Relay Chat
IRTF Internet Research Task Force
ISDN Integrated Services Digital Network
IS-IS Intermediate System to Intermediate System
ISO International Standard Organisation
ISOC Internet SOCiety
ISP Internet Service Provider
ITU Internationale Telekommunikation
ITU-T Interntional Telecommunication
IWU InternetWorkingUnits


JPEG Joint Photographic Experts Group
JTM Job Transfer and Manipulation


Kbps Kilo Bits Per Second
KIT Kernel for Intelligent Communication Terminals


LAN Local Area Network
LAP B Link Access Procedure Balanced
LCP Link Control Protocol
LD Laserdiode
LDIB Local Directory Information Base
LED Lichtemitterdiode
LES LAN Emulation Server
LIS Logical IP Subnet
LLC Logical Link Control
LOTOS Language Of Temporal Ordering Specification
LRC Longitudinal Redundancy Check
LWL Lichtwellenleiter (fibre optics)
LWT Listen While Talking


MAC Medium Access Control
MAN Metropolitan Area Network
MAU Medium-Attachment-Unit
MBONE Multicast BackBONE
Mbps Millions of bits per second
MBS Maximum Burst Size
MCR Minimum Cell Rate
MD5 Message Digest Version 5
MHS Message Handling System
MIB Management Information Base
MIDI Music Instrument Digital Interface
MIME Multipurpose Internet Mail Extensions
MLMA Multi Level Multi Access Protocol
MNP Microcom Networking Protocol
MODEM MOdulator/DEMudolator
MPEG Moving Pictures Expert Group
mrouted Multicast ROUTE Daemon
MSDP Mobile and Service Data Point
MSN Microsoft Network
MSS Maximum Segment Size
MT Mobile Terminal
MTA Message Transfer Agent
MTS Message Transfer Service
MTSO Mobile Telephone Switching Office
MTU Maximum Transfer Unit
MUD Multi-User Dungeon
MUSE Muti-User Shared Environment
MUSH Multi-User Shared Halucination
MUX Multiplexen


NAK Negative Acknowledgement
NAP Network Access Proint
NCP Network Control Protocol
NCSA National Center for Supercomputing Application
NDR Network Data Representation
NetBIOS Network Basic Input Output System
NFS Network File System
NI Not Increase/ Non-Interlace
NIC Network Information Center
NIST National Institute of Standards and Technology
NM Network Management
NMS Netzwerkmanagement-Station
NNI Network-Network Interface
NNTP Net News Transport Protocol
NOC Network Operations Center
NRZ Non-Return to Zero
NRZI Non-Return to Zero Inverted
NSAP Network Service Access Point
NSF National Science Foundation
NSFNET National Science Foundation Network
NT Network Terminator
NUA Network User Adress
NV Network Video


OAM Operation, Administration & Maintenance
OC Optical Carrier
ODP Open Distributed Processing
ONC Open Network Computing
OPAC Online Public Access Catalog
OSF Open Software Foundation
OSI Open Systems Interconnection
OSI CLTP Connection Less Transport Protocol
OSI COTS Connection Oriented Transport Service
OSIE OSI Environment
OSPF Open Shortest Path First


PAD Packet Assembly Disassembly
PBX Private Branch eXchange
PCI Protocol Control Information
PCM Pulse Code Modulation
PCR Peak Cell Rate
PDN Public Data Network
PDU Protocol Data Unit
PEM Privacy Enhanced Mail
Perl Practical extraction and report language
PGP Pretty Good Privacy
PICS Platform for Internet Content Selection
PIN Persönliche Identifikationsnummer
PING Packet InterNet Groper
PIO Programmed Input/Output
PLS Physical Medium Signaling sublayer
PMA Physical Medium Attachement Sublayer
PNG Portable Network Graphics
POP Point Of Presence
POTS Plain Old Telephone Service
PPP Point to Point Protocol
PSAP Presentation Service Access Point
PSS Packet Switching Service
PTT Postes, Téléphone et Télégraphique
PTT Post-, Telegramm- und Telefonbehörde
PUP Parc Universal Packet


QoS Quality of Service


RARP Reverse Address Resolution Protocol
RCC Routing Control Center
RDP Reliable Datagram Protocol
RED Random Early Detection
RFC Request For Comments
RFD Request For Discussion
RIP Routing Information Protocol
RJE Remote Job Entry
RM Resource Management
ROADS Running Out of ADdress Space
ROSE Remote Operation Service Element
routed Route Daemon
RPC Remote Procedure Call
RSA Rivest, Shamir, and Adleman
RSE Real System Environment
RSVP Resource ReSerVation Protocol
RTO Round Trip time-Out
RTSE Reliable Transfer Service Elements
RTT Round-Trip Time


SACK Selective ACKnowledgement
SAP Service Access Point
SAPI Service Access Point Identifier; 6 Bit
SASE Specific Application Service Element
SBR Statistical Bit Rate
SCR Sustainable Cell Rate
SDL Specification Description Language
SDLC Synchronous Data Link Control
SDU Service Data Unit
SET Secure Electronic Transaction
SGML Standard Generalized Markup Language
SGMP Simple Gateway Monitoring Protocol
SIP Simple IP
SLIP Serial Line Internet Protocol
SMDS Switched Multimegabit Data Service
SMI Structure of Management Information
SMTP Simple Mail Transfer Protocol
SNA Systems Network Architecture
SNMP Simple Network Management Protocol
SOA Start Of Authority
SOH Start Of Header
SONET Synchronous Optical NETwork
SPF Shortest Path First
SSAP Session Service Access Point
SSL Secure-Socket-Layer (Protocol)
STD STanDard
STDM Synchronous Time Division Multiplexing
STP Shielded Twisted Pair
STS Synchronous Transport Signal
STX Start of TeXt
SWS Silly Window Syndrome
SYN SYNchronizing segment


T-Online Telekom Online
TAN Transaktionsnummer
TAP Terminal Access Point
TAT Theoretical Arrival Time
Tcl/Tk Tool command language / Toolkit
TCP Transmission Control Protocol
TCP/IP TCP/ Internet Protocol
TDM Time Division Multiplexing
TDMA Time Division Multiple Access
TEI Terminal Endpoint Indentifier; 7 Bit
TELNET Arpanet virtual terminal protocol
TFTP Trivial File Transfer Protocol
TLI Transport Layer Interface
TOS Type Of Service
TPDU Truncated Reverse Path Broadcast
TP4 OSI Transport Protocol Class 4
TRPB Transport Protocol Data Unit
TSAP Transport Service Access Point
TTL Time To Live
TTYs Teletypes


UA User Agent
UART Universal Asynchronous Receiver and Transmitter
UBR Unspecified Bit Rate
UDBPointer User Date Block Pointer
UDP User Datagram Protocol
UE User Element
UMTS Universal Mobile Telecommunications Systems
UNI User Network Interface
UPC Usage Parameter Control
URL Uniform Resource Locator
USENET User's Network
UTP Unshielded Twisted Pair
UUCP Unix to Unix Coppy Program


VBR Variable Bit Rate
VC Virtual Circuit
VCC Virtual Channel Connection
VCI Virtual Channel Identifier
VPC Virtual Path Connection
VPI Virtual Path Identifier
VPI/VCI Virtual Path Identifier and Virtual Circuit Identifier
VRC Vertical Redundancy Check
VRML Virtual Reality Modeling Language
VTP Virtual Terminal Protocol


WAIS Wide Area Information System
WAN Wide Area Network
WiN (WIN) WissenschaftsNetz
WLAN Wireless Local Area Network
WWW World Wide Web


X.25 ISO/OSI-Protokoll für die Datenkommunikation
X25NET X.25-NETwork
X.400 ISO/OSI-Protokoll für den Nachrichtenaustausch
XDR eXternal Data Representation


Z-Netz Zerberus-Netz

Stand 29.04.2003

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