Comprehensive Networking Glossary and Acronym Guide

Gary Scott Malkin

1995 | 208 pages
ISBN: 013319955X
$19.95 Softbound print book  

RESOURCES

DESCRIPTION

This glossary offers a complete collection of technical terms and acronyms used in the networking industry. It covers general networking terminology, the specific terminology used in the Internet, and terms and acronyms specific to AppleTalk, IP, IPX, SNA, and OSI. It also covers national and international networking organizations and several major networks.

Organized in case-insensitive, alphabetic order, entries present well written definitions, understandable to novice readers and useful to experts. The glossary and the glossary entries are:

For extra guidance, the book ends with three appendices, each listing the entries in one of three subject areas: networks and organizations, security, and applications and protocols.

The Comprehensive Networking Glossary and Acronym Guide is a valuable, single-source reference for the practical terminology of networking as well as a guide to networks and networking organizations.

WHAT THE EXPERTS SAY ABOUT THIS BOOK...

"Gary Malkin's glossary is your first step on the internet trail. Welcome to the language of the net."
--Vint Cerf

ABOUT THE AUTHOR...

Gary Scott Malkin is a long-standing member of the Internet Engineering Task Force and a member of the IETF User Services Advisory Council. He has written and edited many popular RFC's including the Internet User's Glossary and The TAO of IETF. Gary is a Principal Software Engineer at Xylogics, Inc.

Introduction

They say the American English language grows faster than all other languages combined. One reason is the need to name each of the new technological innovations. Computer networking is one of the fastest growing technologies, and the volume of related terminology is growing proportionately fast. This book is written in such a way as to be useful to everyone from network neophyte to network developer.

The glossary entries are alphabetical within the body of the book. Hyphenated entries are sorted as though the hyphen were a blank; that is: "inter-domain" comes before "interactive." Also, acronym expansions are interspersed among the actual definitions. In general, an acronym expansion references the definition by saying "See..." In some cases, acronyms are defined via the acronym's expansion alone.

Several conventions are followed throughout the book.

Some of the definitions refer to an RFC (look it up). RFCs may be obtained in many ways, depending on the type of Internet access available to you. They may also be obtained by mail. For more information, contact the InterNIC at +1 800 444 4345 or +1 619 455 4600.

Definition Samples

:-)
Symbols like this are used to introduce emotion into the flat medium of Electronic Mail. There are hundreds of such symbols, from the obvious to the obscure. This particular symbol is a smiley face, which expresses happiness or sarcasm. Don't see it? Tilt your head to the left 90 degrees.

acknowledgment (ACK)
A type of message sent to indicate that a block of data arrived at its destination without error. See also: Negative Acknowledgment.

black hole
A situation, typically caused by an erroneous route or a dead router, in which transmitted packets disappear. Routing and forwarding problems for which error messages are generated are not considered black holes, because the packet's originating node has some indication that something went wrong.

cellular radio
A technology which uses low-power radio to replace the wire connection to the Central Office. A cellular phone may be stationary or mobile, in which case a handoff between cells occurs, transparently to the user, as cell boundaries are crossed.

Dual Tone Multi-Frequency (DTMF)
The signaling method used by Touch-Tone telephones. Each key generates two tones, the combination of which is unique for each of the 12 keys.

Electronic Frontier Foundation (EFF)
A foundation established to address the social and legal issues arising from the impact on society of the increasingly pervasive use of computers as a means of communication and information distribution.

List of Terms

:-)
@
!
10Base2
10Base5
10BaseT
1Base5
23B+D
2B+D
802.2
802.3
802.4
802.5
802.x
822
A and B signaling
AARP
ABM
abort sequence
Abstract Handle Specification (AHS)
abstract syntax
Abstract Syntax Notation One (ASN.1)
Acceptable Use Policy (AUP)
Access Control List (ACL)
access line
access method
Accunet
ACF
ACK
acknowledgment (ACK)
AC
acoustic coupler
ACSE
active device
active monitor
Active Monitor Present (AMP)
AD
Adaptive Pulse Code Modulation (ADPCM)
address
address mask
address resolution
Address Resolution Protocol (ARP)
ADMD
Administration Management Domain (ADMD)
Administrative Domain (AD)
ADPCM
ADSP
Advanced Communications Facility (ACF)
Advanced Program-to-Program Communication (APPC)
Advanced Research Projects Agency Network (ARPANET)
AEP
AES
AFI
AFP
agent
AHS
AIX
alias
Aloha
alternate routing
AM
American National Standards Institute (ANSI)
American Standard Code for Information Interchange (ASCII)
Ameritech
AMP
Amplitude Modulation (AM)
analog
annular mark
anonymous FTP
ANSI
answerback
AOW
API
APNIC
APPC
Appletalk
AppleTalk Address Resolution Protocol (AARP)
AppleTalk Data Stream Protocol (ADSP)
AppleTalk Echo Protocol (AEP)
AppleTalk Filing Interface (AFI)
AppleTalk Filing Protocol (AFP)
AppleTalk Remote Access Protocol (ARAP)
AppleTalk Session Protocol (ASP)
AppleTalk Transaction Protocol (ATP)
application
Application Environment Specification (AES)
application layer
Application Program Interface (API)
ARAP
archie
architecture
archive site
ARCnet
area
ARP
ARPA
ARPANET
ARQ
ARS
AS
ASCII
Asia and Oceania Workshop (AOW)
ASN.1
ASP
assigned numbers
Association Control Service Element (ACSE)
asymmetric route
asynchronous
Asynchronous Balanced Mode (ABM)
Asynchronous Transfer Mode (ATM)
ATM
ATP
attenuation
attribute
audit trail
AUI
AUP
authentication
Authority and Format Identifier (AFI)
authorization
autobaud
Automatic Repeat Request (ARQ)
Automatic Route Selection (ARS)
Autonomous System (AS)
Auxiliary Unit Interface (AUI)
AWG
B channel
B-ISDN
backbone
Backus-Naur Form (BNF)
balun
bandwidth
bang
bang path
baseband
BASIC
Basic Encoding Rules (BER)
Basic-rate ISDN (B-ISDN)
Basic Telecommunications Access Method (BTAM)
batch
baud
Baudot code
Bayonet Nut Connector (BNC)
BBS
BCD
BCNU
beacon
Bell Atlantic
Bell South
Bellcore
BER
Berkeley Internet Name Domain (BIND)
Berkeley Software Distribution (BSD)
BGP
big-endian
BIH
binary
Binary Coded Decimal (BCD)
Binary Synchronous Communications (BSC)
BIND
bipolar
Birds Of a Feather (BOF)
bisync
bit
bit duration
bit-oriented
bit stuffing
Bitnet
black hole
block multiplexor channel
BNC
BNF
BOC
BOF
bogon
BOOTP
Border Gateway Protocol (BGP)
border router
bounce
boundary node
bridge
broadband
broadcast
broadcast medium
broadcast storm
brouter
BSC
BSD
BTW
buffering
bullet-proof
Bulletin Board System (BBS)
bus
bus and tag
byte
byte multiplexor channel
byte order
byte-swap
C band
CA
CAD
CAE
call
call-forwarding
call-waiting
CAM
CAM
camp-on
Campus Wide Information System (CWIS)
carrier
Carrier Detect (CD)
Carrier Sense Multiple Access with Collision Avoidance (CSMA/CA)
Carrier Sense Multiple Access with Collision Detection (CSMA/CD)
carrying capacity
Catalog Node (CNode)
catenet
Cathode Ray Tube (CRT)
CATV
CBX
CCIRN
CCIS
CCITT
CCR
ccs
CD
cell
cellular radio
Central Office (CO)
CERT
Certification Authority
Challenge Handshake Authentication Protocol (CHAP)
channel
channel bank
Channel Service Unit (CSU)
CHAP
character
character-oriented
cheap(er)net
checksum
chokepoint
CICS
CIDR
CIM
circuit
Circuit-Switched Digital Capability (CSDC)
circuit switching
CIT
CIX
Classless Inter-Domain Routing (CIDR)
Clear To Send (CTS)
clearinghouse
Clearinghouse for Networked Information Discovery and Retrieval (CNIDR)
client
client-server model
CLNP
closed user group
CLTP
cluster controller
CMIP
CMIP Over TCP (CMOT)
CMIS
CMOT
CNI
CNIDR
CNode
CNRI
CO
Coalition for Networked Information (CNI)
coaxial cable (coax)
COBOL
codec
coder/decoder
collision
combined station
Comit? Consultatif International de T?l?graphique et T?l?phonique (CCITT)
Command Terminal Protocol (CTERM)
Commercial Information Exchange (CIX)
Commercial Off-The-Shelf (COTS)
Commitment, Concurrency and Recovery (CCR)
Common Channel Interoffice Signaling (CCIS)
common carrier
Common Management Information Protocol (CMIP)
Common Management Information Services (CMIS)
Community Antenna Television (CATV)
compression
Computer Emergency Response Team (CERT)
Computer Integrated Telephony (CIT)
COMSAT
concentrator
conditioned line
confidence
conformance test
congestion
congestion control
connection-oriented
Connection Oriented Network Service (CONS)
connectionless
Connectionless Network Protocol (CLNP)
Computerized Branch Exchange (CBX)
Connectionless Transport Protocol (CLTP)
CONS
Content Addressable Memory (CAM)
contention
Continuous Variable-Slope Delta modulation (CVSD)
control characters
convergence time
Cooperation for Open Systems Interconnection Networking in Europe (COSINE)
Coordinated Universal Time (UTC)
coordinates
Coordinating Committee for Intercontinental
Research Networks (CCIRN)
core gateway
Corporation for National Research Initiatives (CNRI)
COS
COSINE
Corporation for Open Systems (COS)
Corporation for Research and Educational Networking (CREN)
COTS
CPE
CPU
cracker
CRC
credit
CREN
crosstalk
CRT
CSCD
CSMA/CA
CSMA/CD
CSU
CTERM
CTS
Customer Information Control System (CICS)
Customer Premises Equipment (CPE)
CVSD
CWIS
Cyberspace
Cyclic Redundancy Check (CRC)
D-bit
D channel
D4 framing
DACS
DAP
DAR
DARPA
DAS
DASD
Data Circuit-terminating Equipment (DCE)
Data Encryption Key (DEK)
Data Encryption Standard (DES)
Data Network Identification Code (DNIC)
Data Service Unit (DSU)
Data Set Ready (DSR)
Data Terminal Equipment (DTE)
Data Terminal Ready (DTR)
data transparency
datagram
Datagram Delivery Protocol (DDP)
datalink layer
Dataphone Digital Service (DDS)
DB-9
DB-15
DB-25
DB-37
DCA
DCE
DCM
DDN
DDN NIC
DDP
DDP
DDS
de facto standard
deaf node
DECmcc
DECnet
decode
decoder
decrypt
DECUS
DECwindows
default route
default zone
Defense Advanced Research Projects Agency (DARPA)
Defense Data Network (DDN)
Defense Information Systems Agency (DISA)
DEK
DELNI
demodulator
demultiplexor
DES
designated router
device driver
DNCP
DIA/DCA
dial backup
dial-up
dialog management
digital
Digital Access and Cross-connect System (DACS)
Digital Circuit Multiplication (DCM)
Digital Local Network Interconnect (DELNI)
Digital Network Architecture (DNA)
Digital Termination Systems (DTS)
digitize
Direct Memory Access (DMA)
directed broadcast
directory
Directory Access Protocol (DAP)
Directory System Agent (DSA)
Directory User Agent (DUA)
DIS
DISA
Disk Operating System (DOS)
diskless node
Distance-Vector algorithm (DV algorithm)
Distributed Computing Environment (DCE)
Distributed Data Processing (DDP)
distributed database
DIX Ethernet
DMA
DNA
DNIC
DNS
Document Interchange Architecture/Document Content Architecture (DIA/DCA)
DoD
domain
Domain Name System (DNS)
DOS
dot address (dotted decimal notation)
down-link
downstream neighbor
downtime
Draft International Standard (DIS)
driver
drop cable
DS-0
DS-1
DS-3
DSA
DSAP
DSR
DTE
DTMF
DTR
DTS
du jure standard
DUA
Dual Tone Multi-Frequency (DTMF)
DV-algorithm
Dynamic Adaptive Routing (DAR)
dynamic bandwidth allocation
Dynamic Host Configuration Protocol (DHCP)
Dynamically Assigned Socket (DAS)
EARN
earth station
EBCDIC
Ebone
echo
echo suppression
ECMA
EDI
EEPROM
EFF
EFT
EGP
EHF
EIA
EID
ELAP
electrical signaling
Electromagnetic Interference (EMI)
electromagnetic spectrum
Electronic Data Interchange (EDI)
Electronic Frontier Foundation (EFF)
Electronic Industries Association (EIA)
Electronic Mail (email)
Electronic Switching System (ESS)
ELF
EMA
email
email address
EMI
emulator
encapsulation
encode
encrypt
encryption
end node
End Of Address (EOA)
End Of Block (EOB)
End Of Message (EOM)
End of Text (ETX)
End Of Transmission (EOT)
End System (ES)
End System to Intermediate System (ES-IS)
end-to-end
Endpoint Identifier (EID)
Enterprise Management Architecture (EMA)
entity
EOA
EOB
EOF
EOM
EOT
ephemeral port
EPROM
Erlang
error correction code
Error Detection and Recovery Class
ES
ES-IS
ESF
ESS
ETB
ethertype
ETX
Ethernet
Ethernet meltdown
EtherTalk Link Access Protocol (ELAP)
European Academic and Research Network (EARN)
European Computer Manufacturers Association (ECMA)
European Workshop for Open Systems (EWOS)
even parity
EWOS
exchange
Exactly-Once transaction (XO transaction)
Exchange Identification (XID)
Extended Binary Coded Decimal Interchange Code (EBCDIC)
Extended Superframe Format (ESF)
Exterior Gateway Protocol (EGP)
External Data Representation (XDR)
Extremely High Frequency (EHF)
Extremely Low Frequency (ELF)
facsimile (fax)
FARNET
Fast Packet
FAQ
fast select
fault tolerant
fax
FCC
FCS
FDDI
FDM
FDX
FEC
Federal Communications Commission (FCC)
Federal Information Exchange (FIX)
Federal Information Processing Standards (FIPS)
Federal Networking Council (FNC)
Fiber Distributed Data Interface (FDDI)
fiber optics
file server
file transfer
File Transfer, Access, and Management (FTAM)
File Transfer Protocol (FTP)
filtering
finger
FIPS
firewall
First In First Out (FIFO)
FIX
flag
flame
FLEA
flow control
flush
FM
FNC
For Your Information (FYI)
format
Fortran
forwarding
Forward Error Correction (FEC)
Four Letter Extended Acronym (FLEA)
FQDN
fragment
fragmentation
frame
Frame Check Sequence (FCS)
freenet
Frequency Division Multiplexing (FDM)
Frequency Modulation (FM)
FRICC
front-end processor
FTAM
FTP
Full Duplex (FDX)
fully connected network
Fully Qualified Domain Name (FQDN)
FYI
G
gain
GAP
gated
gateway
Gateway Access Protocol (GAP)
Gb/s
geosynchronous orbit
gentlebeing
GHz
GIF
Giga- (G)
GMT
go-back-N
Gopher
GOSIP
Government OSI Profile (GOSIP)
Graphical Interchange Format (GIF)
Greenwich Mean Time (GMT)
ground station
group address
guard frequency
guest
Guide to the Use of Standards (GUS)
GUS
hacker
Half Duplex (HDX)
half router
handle
handshake
hardware address
HASP
HDLC
HDX
header
Hertz (Hz)
heterogeneous network
hexadecimal (hex)
HF
HFS
hierarchical architecture
Hierarchical File System (HFS)
hierarchical routing
High Frequency (HF)
High-level Data Link Control (HDLC)
High Performance Computing and Communications (HPCC)
High Performance Parallel Interface (HIPPI)
HIPPI
homogeneous network
hop
hop-by-hop routing
hop-to-hop
host
host address
host byte order
host number
hostname
hot-swap
Houston Automatic Spooling Program (HASP)
HPCC
HTML
hub
hypertext
Hypertext Markup Language (HTML)
Hz
I-D
IAB
IANA
IBM cabling system
IC
ICMP
idle
IDRP
IDPR
IEC
IEEE
IEEE 802
IEN
IESG
IETF
IINREN
IGMP
IGP
IGRP
IMAP
IMHO
IML
IMP
impedance
implementors' agreement
IMR
in-band signaling
information superhighway
Information Systems (IS)
infrared
Institute of Electrical and Electronics Engineers (IEEE)
INTAP
Integrated Circuit (IC)
Integrated Services Digital Network (ISDN)
Integrated Voice/Data Terminal (IVDT)
inter-domain router
Inter-Domain Routing Protocol (IDRP)
Inter-Domain Policy Routing (IDPR)
interactive
Interagency Interim National Research and
Education Network (IINREN)
Interexchange Carrier (IEC)
interface (hardware)
interface (software)
Interface Data Unit (IDU)
Interface Message Processor (IMP)
interference
Interior Gateway Protocol (IGP)
interLATA
interleaving
Intermediate System (IS)
Intermediate System to Intermediate System (IS-IS)
Internal Organization of the Network Layer (IONL)
International Organization for Standardization (ISO)
International Standard (IS)
International Telecommunications Union (ITU)
International Telecommunications Union---
Telecommunications Standards Sector (ITU-TSS)
International Time Bureau (BIH)
Internaut
internet
Internet (note the capital "I")
internet address
Internet Architecture Board (IAB)
Internet Assigned Numbers Authority (IANA)
Internet Control Message Protocol (ICMP)
Internet-Draft (I-D)
Internet Engineering Steering Group (IESG)
Internet Engineering Task Force (IETF)
Internet Experiment Note (IEN)
Internet Gateway Routing Protocol (IGRP)
Internet Group Multicast Protocol (IGMP)
Internet Message Access Protocol (IMAP)
Internet Monthly Report (IMR)
internet number
Internet Protocol (IP)
Internet Protocol Control Protocol (IPCP)
Internet Registry (IR)
Internet Relay Chat (IRC)
Internet Research Steering Group (IRSG)
Internet Research Task Force (IRTF)
Internet Society (ISOC)
Internetwork Packet Exchange (IPX)
InterNIC
interoperability
Interoperability Technology Association for
Information Processing (INTAP)
intra-domain router
intraLATA
I/O
IONL
IP
IP address
IP datagram
IP:ng
IPCP
IPL
IPv4
IPX
IPX address
IR
IRC
IRSG
IRTF
IS
IS-IS
ISDN
ISO
ISO Development Environment (ISODE)
ISOC
ISODE
IT
ITU
ITU-TSS
IVDT
jabber
jack
jamming
JCL
jitter
Job Control Language (JCL)
jumper
K
Ka band
KA9Q
Kb/s
keep-alive
Kerberos
Kermit
key management
Kilo- (K)
kiss-of-death packet
Knowbot
Ku band
L band
LAN
land line
LAP
LAP-B
LAP-D
laser
Last In First Out (LIFO)
LAT
LATA
late collision
latency
layer
layered architecture
LCR
LCP
learning bridge
leased line
Least Significant Bit/Byte (LSB)
LED
LEN
level 1 router
level 2 router
LF
LIFO
Light Emitting Diode (LED)
light signal
lightspeed
line hit
link
Link Access Procedure (LAP)
Link Access Procedure-Balanced (LAP-B)
Link Access Procedure-D channel (LAP-D)
Link Control Protocol (LCP)
Link-State algorithm (LS-algorithm)
listserv
little-endian
LLAP
LLC
lobe
Local Access and Transport Area (LATA)
Local Area Network (LAN)
Local Area Transport (LAT)
local loop
local station
LocalTalk
LocalTalk Link Access Protocol (LLAP)
lockstep
Logical Link Control (LLC)
Logical Unit (LU)
long-haul
loopback
Low Entry Networking (LEN)
Low Frequency (LF)
LSB
LSI
LU
LU 6.2
lurking
M
M bit
MAC
MAC address
Magnetic Ink Character Recognition (MICR)
mail bridge
Mail Exchange Record (MX Record)
mail exploder
mail gateway
mail path
mail reflector
mail server
mailing list
MAN
Management Information Base (MIB)
Manchester encoding
Manufacturing Automation Protocol (MAP)
MAP
mapping
Martian
maser
MAU
Maximum Packet Lifetime (MPL)
Maximum Transmission Unit (MTU)
Mb/s
Mean Time Between Failures (MTBF)
Mean Time To Repair (MTTR)
Media Access Control (MAC)
medium
Medium Frequency (MF)
Mega- (M)
mesh network
message
Message Handling System (MHS)
message switching
Message Transfer Agent (MTA)
Message Telephone Service (MTS)
Metropolitan Area Network (MAN)
MHz
MIB
MICR
microcode
Microcom Networking Protocol (MNP)
microwave
MIDI
mid-level network
MIF
MILNET
MIME
Minimum Internetworking Functionality (MIF)
MNP
modem
modem eliminator
moderator
modulate
modulator/demodulator
Most Significant Bit/Byte (MSB)
mount
MS-DOS
MSB
MTA
MTBF
MTTR
MTU
MUD
multi-mode
multicast
multidomain network
multidrop
multihomed host
Multiple Virtual Systems (MVS)
multiplexer
multi-protocol router
Multipurpose Internet Mail Extensions (MIME)
Multistation Access Unit (MAU)
Multi-User Dungeon (MUD)
Musical Instrument Digital Interface (MIDI)
mux
MVS
MX Record
NAK
Name Binding Protocol (NBP)
name resolution
named pipes
namespace
NAPLPS
National Cable Television Association (NCTA)
National Exchange Carrier Association (NECA)
National Information Infrastructure (NII)
National Institute of Standards and Technology (NIST)
National Public Telecomputing Network (NPTN)
National Research and Education Network (NREN)
National Science Foundation (NSF)
National Telecommunications and
Information Administration (NTIA)
National Television System Committee signal (NTSC)
NAU
NBP
NBS
NCCF
NCP
NCTA
NCTE
NDIS
NECA
Negative Acknowledgment (NAK)
neighbor
NetBIOS
netiquette
Netnews
NetView
NetWare
network
network address
Network Addressable Unit (NAU)
network architecture
Network Basic Input Output System (NetBIOS)
network broadcast
network byte order
Network Channel Terminating Equipment (NCTE)
Network Communications Control Facility (NCCF)
Network Control Program (NCP)
Network Device Interface Specification (NDIS)
Network File System (NFS)
Network Information Center (NIC)
Network Information Services (NIS)
network layer
network-layer address
network management
Network Management System (NMS)
Network News Transfer Protocol (NNTP)
network number
Network Operating System (NOS)
Network Operations Center (NOC)
Network Service Access Point (NSAP)
Network Terminal Option (NTO)
Network Time Protocol (NTP)
Network Visible Entity (NVE)
networking
NFS
nibble
NIC
NII
NIS
NIST
NMS
NNTP
NOC
Nodal Switching System (NSS)
node
node type
Noelgram
non-blocking
Non-return to Zero (NRZ)
North American Presentation Level Protocol Syntax (NAPLPS)
NOS
NPTN
NREN
NRZ
NSAP
NSF
NSFNET
NSS
NTIA
NTO
NTP
NTSC signal
null character
null modem
NVE
NYNEX
OCLC
OCR
octal
octet
ODA
odd parity
ODI
OEM
OEM-I
off-hook
off-line
offered load
Office Document Architecture (ODA)
OIW
on-hook
on-line
ONC
ones density
On-line Computer Library Catalog (OCLC)
open-air transmission
Open Datalink Interface (ODI)
Open Network Computing (ONC)
Open Shortest-Path First Interior Gateway Protocol (OSPF)
Open Software Foundation (OSF)
Open Systems Interconnection (OSI)
Operating System (OS)
Optical Character Recognition (OCR)
optical fiber
Original Equipment Manufacturer (OEM)
OS
OS/2
OSF
OSI
OSI network address
OSI presentation address
OSI reference model
OSInet
OSPF
out-of-band signaling
overhead
overrun
PABX
Pacific Bell
pacing group
packet
Packet Assembler/Disassembler (PAD)
Packet Authentication Protocol (PAP)
Packet Driver Interface (PDI)
Packet Internet Groper (PING)
packet radio
Packet Switch Node (PSN)
packet switching
PAD
pad characters
Palo Alto Research Center (PARC)
PAP
parallel sessions
parallel interface
PARC
PARC Universal Packet
parity bit
parity check
passive device
path
path-control layer
Path Information Unit (PIU)
PBX
PC
PC-DOS
PCI
PCM
PCMCIA
PCD
PDM
PCS
PD
PDI
PDN
PDU
peer (hardware)
peer (software)
PEM
peripheral device
Permanent Virtual Circuit (PVC)
Personal Communication Device (PCD)
Personal Communication Service (PCS)
Personal Computer (PC)
Personal Computer Memory Card Industry Association (PCMCIA)
phantom power
Phase Modulation (PM)
physical address
physical layer
Physical Unit (PU)
picture element (pixel)
piggyback
PIN
PING
pipe
PIU
pixel
Point Of Presence (POP)
point-to-point
Point-to-Point Protocol (PPP)
poison reverse
polling
POP
port
POSI
Positive, Intrinsic, Negative (PIN)
POSIX
Post Office Protocol (POP)
Postal Telegraph and Telephone (PTT)
postmaster
PostScript (PS)
PPP
preamble
presentation layer
Primary-rate ISDN (P-ISDN)
print server
printable characters
Printer Access Protocol (PAP)
Privacy Enhanced Mail (PEM)
Private Automatic Branch Exchange (PABX)
Private Branch Exchange (PBX)
Private Management Domain (PRMD)
probe
process
PROM
promiscuous mode
Promoting Conference for OSI (POSI)
propagation delay
Prospero
protocol
Protocol Control Information (PCI)
protocol converter
Protocol Data Unit (PDU)
protocol stack
proxy
proxy ARP
PS
PSN
PSTN
PTT
Public Data Network (PDN)
public key
Public Switched Telephone Network (PSTN)
Public Utilities Commission (PUC)
PUC
Pulse Code Modulation (PCM)
Pulse Duration Modulation (PDM)
Pulse Width Modulation (PWM)
PUP
push-down stack
Q bit
QOS
Quality Of Service (QOS)
query packet
query/reply protocol
queue
quiescent
quiet time
quipu
Radio Frequency (RF)
Radio Frequency Interference (RFI)
RARE
RARP
rate center
RBOC
RCP
RDB
Read the F*cking Manual (RTFM)
real-time
reassembly
Receive Only (RO)
recursive
Red, Green, Blue (RGB)
redundancy
regional
Regional Bell Operating Company (RBOC)
Relational Database (RDB)
Reliable Transfer Service Element (RTSE)
Remote File System (RFS)
Remote Job Entry (RJE)
remote login
Remote Operations Service Element (ROSE)
Remote Procedure Call (RPC)
remote station
repeater
reply packet
request packet
request/response protocol
Request For Comments (RFC)
Request To Send (RTS)
R?seaux Associ?s pour la Recherche Europ?ens (RARE)
R?seaux IP Europ?ens (RIPE)
response packet
response time
retransmission
retransmissive star
retry
Return to Zero (RZ)
Reverse Address Resolution Protocol (RARP)
reverse channel
Reverse Interrupt (RVI)
RF
RFC
RFC 822
RFI
RFS
RGB
RI
Ring Indicator (RI)
ring network
RIP
RIPE
RIPE NCC
RJ-11
RJ-12
RJ-45
RJE
rlogin
RO
ROSE
round-robin
Round-Trip Time (RTT)
route
routed
router
routing
routing domain
Routing Information Protocol (RIP)
routing loop
routing protocol
Routing Table Management Protocol
RPC
RS-232
RS-422
RS-449
RSA
RSN
RTFM
RTMP
RTS
RTSE
RTT
RZ
SAA
SACK
SAP
satellite communication
scattering
SCP
SCS
SCSI
SDLC
SDU
segment (hardware)
segment (software)
selection
selective acknowledgment
selective-repeat
selector
Sequenced Packet Exchange (SPX)
Sequenced Packet Protocol (SPP)
sequencing
serial interface
Serial Line IP (SLIP)
server
service
Service Access Point (SAP)
Service Advertising Protocol (SAP)
Service Data Unit (SDU)
serving area
session
Session Control Protocol (SCP)
session layer
SGML
SGMP
SHF
short frame
shielding
SIG
signal converter
signal element
Signal-to-Noise Ratio (SNR)
signature
Simple Class
Simple Gateway Monitoring Protocol (SGMP)
Simple Mail Transfer Protocol (SMTP)
Simple Network Management Protocol (SNMP)
simplex
Simultaneous Peripheral Operation On-Line (SPOOL)
single mode
sink
SITA
skewing
sliding window
SLIP
slotted Aloha
Small Computer Standard Interface (SCSI)
SMDS
SMFA
SMI
SMTP
SNA
SNA Character String (SCS)
SNA Delivery System (SNADS)
SNADS
SNAP
SNDCF
snail mail
SNMP
SNR
Soci?t? Internationale de T?l?communication
A?ronautique (SITA)
socket
sockets interface
SOH
SOM
SONET
source
source quench
source route
source routing
Southwestern Bell
SPAG
Specific Management Functional Area (SMFA)
spectrum
spectrum allocation
SPOOL
SPP
SPX
SQL
SSAP
SSCP
stack
standard
Standard Generalized Markup Language (SGML)
Standards Promotion and Application Group (SPAG)
star network
star-wired ring network
StarLAN
start bit
Start Of Header (SOH)
Start Of Message (SOM)
Start of Text (STX)
static route
station
STD
stop-and-wait
stop bit
store-and-forward
stream
stream-oriented
streams
Structure of Management Information (SMI)
Structured Query Language (SQL)
stub network
STX
subchannel
Subnetwork Dependent Convergence Facility (SNDCF)
subnet
subnet address
subnet broadcast
subnet mask
subnet number
Subnetwork Access Protocol (SNAP)
Super High Frequency (SHF)
SVC
switched line
Switched Multimegabit Data Service (SMDS)
Switched Virtual Circuit (SVC)
symbol
SYN
synchronous
Synchronous Data Link Control (SDLC)
Synchronous Optical Network (SONET)
System Services Control Point (SSCP)
Systems Application Architecture (SAA)
Systems Network Architecture (SNA)
T1
T3
TA
TAC
TACACS
talk
tap
TASI
TAT-8
TCAM
TCP
TCP/IP Protocol Suite
TDM
TDMA
Technical and Office Protocols (TOP)
Telco
telecommunications
Telecommunications Access Method (TCAM)
TELENET
telephony
teleprinter exchange (Telex)
teletypewriter
Telex
Telnet
terminal
Terminal Access Controller Access Control System (TACACS)
Terminal Adapter (TA)
terminal emulator
terminal node
terminal server
terminated line
terminator
terrestrial
TFTP
thicknet
thinnet
Three Letter Acronym (TLA)
three-way handshake
throughput
tickle
tie line
Time-Assigned Speech Interpolation (TASI)
Time Division Multiple Access (TDMA)
Time Division Multiplexing (TDM)
time-out
time-slot
Time To Live (TTL)
timesharing
TIP
tip
TLA
TLAP
TN3270
token
token bus
token passing
token ring
Token Rotation Time (TRT)
TokenTalk Link Access Protocol (TLAP)
TOP
topology
TP
TP0
TP4
trailer
transceiver
transceiver cable
transit network
transmission
Transmission Control Protocol (TCP)
transmission latency
transmitter-receiver (transceiver)
transparency
transponder
Transport Class 0 (TP0)
Transport Class 4 (TP4)
transport layer
trellis coding
Trivial File Transfer Protocol (TFTP)
Trojan Horse
TRT
trunk
trunk group
TTFN
TTL
TTY
tunnelling
turnaround
turnaround time
twinaxial cable (twinax)
Twisted-Pair (TP)
two-way handshake
Type Of Service (TOS)
UA
UART
UDP
UHF
ULF
Ultra High Frequency (UHF)
Ultra Low Frequency (ULF)
ULTRIX
underrun
Unified Network Management Architecture (UNMA)
Universal Asynchronous Receiver/Transmitter (UART)
Universal Resource Identifier (URI)
Universal Resource Locator (URL)
Universal Synchronous/Asynchronous
Receiver/Transmitter (USART)
Universal Synchronous Receiver/Transmitter (USRT)
UNIX
UNIX-to-UNIX Copy (UUCP)
UNMA
Unshielded Twisted-Pair (UTP)
unsolicited response
up-link
upstream neighbor
uptime
urban legend
URI
URL
US West
USART
Usenet
User Agent (UA)
User Datagram Protocol (UDP)
username
USRT
UTC
UTP
UUCP
V recommendations
V.35
V.42bis
Value-Added Network (VAN)
VAN
Variable Quantizing Level (VQL)
VAX
Very High Frequency (VHF)
Very Low Frequency (VLF)
Very Small Aperture Terminal (VSAT)
VF
VHF
video teleconferencing
VINES
virtual circuit
Virtual Network System (VINES)
Virtual Telecommunications Access Method (VTAM)
Virtual Terminal Protocol (VTP)
virus
VLF
Voice Frequency (VF)
voice-grade channel
VSAT
VT
VTAM
VTP
W3
WAIS
WAN
wart
watchdog
WATS
waveguide
wavelength
Wavelength Division Multiplexing (WDM)
well-known port
WG
white pages
white space
whois
Wide Area Information Servers (WAIS)
Wide Area Network (WAN)
Wide Area Telephone Service (WATS)
wideband
WIMP interface
wiring hub
word
Workshop for Implementors of OSI (OIW)
Working Group (WG)
World Wide Web (WWW or W3)
worm
WRT
WWW
WYSIWYG
X
X Windows
X.121
X.21
X.25
X.400
X.500
XbaseY
XbroadY
XDR
XENIX
Xerox Network System (XNS)
XID
xmodem
XNS
XON/XOFF
ymodem
YP
zero code suppression
ZIP
ZIP bringback time
zmodem
zone
Zone Information Protocol (ZIP)