As per Relevance of the word glossary, we have this rfc below:
Network Working Group O.
Request for Comments: 1208 D.
Interop, Inc
March 1991
A Glossary of Networking
Status of this
This RFC is a glossary adapted from "The INTEROP Pocket Glossary
Networking Terms" distributed at Interop '90. This memo
information for the Internet community. It does not specify
Internet standard. Distribution of this memo is unlimited
This glossary is adapted from "The INTEROP Pocket Glossary
Networking Terms" produced to help you understand the many terms--
in particular the myriad of acronyms--that can be encountered at
INTEROP Tutorials, Conference, and Exhibition
To keep this document reasonably small we have deliberately
common computer and communications terms such as disk, modem, byte
and VLSI. In addition, the definitions have been kept brief.
recommend that you consult the glossaries found in the major
networking textbooks for more comprehensive definitions
We also realize that producing this glossary is akin to shooting at
moving target. The computer and communications industries are
very rapidly, and terms and acronyms are born every day. You
invited to submit words which you think should be included in
editions
abstract syntax: A description of a data structure that
independent of machine-oriented structures and encodings
ACSE: Association Control Service Element. The method used in
for establishing a call between two applications. Checks
identities and contexts of the application entities, and could
an authentication security check
address mask: A bit mask used to select bits from an Internet
for subnet addressing. The mask is 32 bits long and selects
network portion of the Internet address and one or more bits of
local portion. Sometimes called subnet mask
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address resolution: A means for mapping Network Layer addresses
media-specific addresses. See ARP
ADMD: Administration Management Domain. An X.400 Message
System public service carrier. Examples: MCImail and ATTmail in
U.S., British Telecom Gold400mail in the U.K. The ADMDs in
countries worldwide together provide the X.400 backbone. See PRMD
agent: In the client-server model, the part of the system
performs information preparation and exchange on behalf of a
or server application. See NMS, DUA, MTA
ANSI: American National Standards Institute. The U.S
standardization body. ANSI is a member of the
Organization for Standardization (ISO
AOW: Asia and Oceania Workshop. One of the three regional
Implementors Workshops, equivalent to OIW and EWOS
API: Application Program Interface. A set of calling
defining how a service is invoked through a software package
Application Layer: The top-most layer in the OSI Reference
providing such communication services as electronic mail and
transfer
ARP: Address Resolution Protocol. The Internet protocol used
dynamically map Internet addresses to physical (hardware)
on local area networks. Limited to networks that support
broadcast
ARPA: Advanced Research Projects Agency. Now called DARPA, the U.S
government agency that funded the ARPANET
ARPANET: A packet switched network developed in the early 1970s.
"grandfather" of today's Internet. ARPANET was decommissioned
June 1990.
ASN.1: Abstract Syntax Notation One. The OSI language for
abstract syntax. See BER
attribute: The form of information items provided by the X.500
Directory Service. The directory information base consists
entries, each containing one or more attributes. Each
consists of a type identifier together with one or more values.
directory Read operation can retrieve some or all attributes from
designated entry
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Autonomous System: Internet (TCP/IP) terminology for a collection
gateways (routers) that fall under one administrative entity
cooperate using a common Interior Gateway Protocol (IGP).
subnetwork
backbone: The primary connectivity mechanism of a
distributed system. All systems which have connectivity to
intermediate system on the backbone are assured of connectivity
each other. This does not prevent systems from setting up
arrangements with each other to bypass the backbone for reasons
cost, performance, or security
Bart Simpson (R): Internet and OSI cult hero
baseband: Characteristic of any network technology that uses a
carrier frequency and requires all stations attached to the
to participate in every transmission. See broadband
BER: Basic Encoding Rules. Standard rules for encoding data
described in ASN.1. Sometimes incorrectly lumped under the
ASN.1, which properly refers only to the abstract syntax
language, not the encoding technique
big-endian: A format for storage or transmission of binary data
which the most significant bit (or byte) comes first. The
convention is called little-endian
BITNET: Because It's Time NETwork. An academic computer
based originally on IBM mainframe systems interconnected via
9600 bps lines. BITNET has recently merged with CSNET,
Computer+Science Network (another academic computer network) to
CREN: The Corporation for Research and Educational Networking.
CSNET
BOC: Bell Operating Company. More commonly referred to as RBOC
Regional Bell Operating Company. The local telephone company in
of the seven U.S. regions
bridge: A device that connects two or more physical networks
forwards packets between them. Bridges can usually be made to
packets, that is, to forward only certain traffic. Related
are: repeaters which simply forward electrical signals from one
to another, and full-fledged routers which make routing
based on several criteria. In OSI terminology, a bridge is a
Link Layer intermediate system. See repeater and router
broadband: Characteristic of any network that multiplexes multiple
independent network carriers onto a single cable. This is
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done using frequency division multiplexing. Broadband
allows several networks to coexist on one single cable; traffic
one network does not interfere with traffic from another since
"conversations" happen on different frequencies in the "ether,"
rather like the commercial radio system
broadcast: A packet delivery system where a copy of a given packet
given to all hosts attached to the network. Example: Ethernet
BSD: Berkeley Software Distribution. Term used when
different versions of the Berkeley UNIX software, as in "4.3
UNIX."
catenet: A network in which hosts are connected to networks
varying characteristics, and the networks are interconnected
gateways (routers). The Internet is an example of a catenet.
IONL
CCITT: International Consultative Committee for Telegraphy
Telephony. A unit of the International Telecommunications
(ITU) of the United Nations. An organization with
from the PTTs of the world. CCITT produces technical standards
known as "Recommendations," for all internationally
aspects of analog and digital communications. See X Recommendations
CCR: Commitment, Concurrency, and Recovery. An OSI
service element used to create atomic operations across
systems. Used primarily to implement two-phase commit
transactions and nonstop operations
client-server model: A common way to describenetwork services and
model user processes (programs) of those services. Examples
the name-server/name-resolver paradigm of the DNS and file
server/file-client relationships such as NFS and diskless hosts
CLNP: Connectionless Network Protocol. The OSI protocol
providing the OSI Connectionless Network Service (datagram service).
CLNP is the OSI equivalent to Internet IP, and is sometimes
ISO IP
CLTP: Connectionless Transport Protocol. Provides for end-to-
Transport data addressing (via Transport selector) and error
(via checksum), but cannot guarantee delivery or provide
control. The OSI equivalent of UDP
CMIP: Common Management Information Protocol. The OSI
management protocol
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CMOT: CMIP Over TCP. An effort to use the OSI network
protocol to manage TCP/IP networks
connectionless: The model of interconnection in which
takes place without first establishing a connection.
(imprecisely) called datagram. Examples: LANs, Internet IP and
CLNP, UDP, ordinary postcards
connection-oriented: The model of interconnection in
communication proceeds through three well-defined phases:
establishment, data transfer, connection release. Examples: X.25,
Internet TCP and OSI TP4, ordinary telephone calls
core gateway: Historically, one of a set of gateways (routers
operated by the Internet Network Operations Center at BBN. The
gateway system forms a central part of Internet routing in that
groups must advertise paths to their networks from a core gateway
using the Exterior Gateway Protocol (EGP). See EGP, backbone
COS: Corporation for Open Systems. A vendor and user group
conformance testing, certification, and promotion of OSI products
COSINE: Cooperation for Open Systems Interconnection Networking
Europe. A program sponsored by the European Commission, aimed
using OSI to tie together European research networks
CREN: See BITNET and CSNET
CSMA/CD: Carrier Sense Multiple Access with Collision Detection.
access method used by local area networking technologies such
Ethernet
CSNET: Computer+Science Network. A large computer network, mostly
the U.S. but with international connections. CSNET sites
universities, research labs, and some commercial companies.
merged with BITNET to form CREN. See BITNET
DARPA: Defense Advanced Research Projects Agency. The U.S
government agency that funded the ARPANET
Data Link Layer: The OSI layer that is responsible for data
across a single physical connection, or series of
connections, between two Network entities
DCA: Defense Communications Agency. The government
responsible for the Defense Data Network (DDN).
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DCE: Distributed Computing Environment. An architecture of
programming interfaces, conventions, and server
(e.g., naming, distributed file system, remote procedure call)
distributing applications transparently across networks
heterogeneous computers. Promoted and controlled by the
Software Foundation (OSF), a consortium led by HP, DEC, and IBM.
ONC
DDN: Defense Data Network. Comprises the MILNET and several
DoD networks
DECnet: Digital Equipment Corporation's proprietary
architecture
DNS: Domain Name System. The distributed name/address mechanism
in the Internet
domain: In the Internet, a part of a naming hierarchy
Syntactically, an Internet domain name consists of a sequence
names (labels) separated by periods (dots), e.g., "tundra.mpk.ca.us."
In OSI, "domain" is generally used as an administrative partition
a complex distributed system, as in MHS Private Management
(PRMD), and Directory Management Domain (DMD).
dotted decimal notation: The syntactic representation for a 32-
integer that consists of four 8-bit numbers written in base 10
periods (dots) separating them. Used to represent IP addresses
the Internet as in: 192.67.67.20.
DSA: Directory System Agent. The software that provides the X.500
Directory Service for a portion of the directory information base
Generally, each DSA is responsible for the directory information
a single organization or organizational unit
DUA: Directory User Agent. The software that accesses the X.500
Directory Service on behalf of the directory user. The
user may be a person or another software element
EARN: European Academic Research Network. A network using
technology connecting universities and research labs in Europe
EGP: Exterior Gateway Protocol. A reachability routing protocol
by gateways in a two-level internet. EGP is used in the
core system. See core gateway
encapsulation: The technique used by layered protocols in which
layer adds header information to the protocol data unit (PDU)
the layer above. As an example, in Internet terminology, a
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would contain a header from the physical layer, followed by a
from the network layer (IP), followed by a header from the
layer (TCP), followed by the application protocol data
end system: An OSI system which contains application
capable of communicating through all seven layers of OSI protocols
Equivalent to Internet host
entity: OSI terminology for a layer protocol machine. An
within a layer performs the functions of the layer within a
computer system, accessing the layer entity below and
services to the layer entity above at local service access points
ES-IS: End system to Intermediate system protocol. The OSI
by which end systems announce themselves to intermediate systems
EUnet: European UNIX Network
EUUG: European UNIX Users Group
EWOS: European Workshop for Open Systems. The OSI
Workshop for Europe. See OIW
FARNET: Federation of American Research NETworks
FDDI: Fiber Distributed Data Interface. An emerging high-
networking standard. The underlying medium is fiber optics, and
topology is a dual-attached, counter-rotating Token Ring.
networks can often be spotted by the orange fiber "cable."
FIPS: Federal Information Processing Standard
flame: To express strong opinion and/or criticism of something
usually as a frank inflammatory statement in an electronic message
FNC: Federal Networking Council. The body responsible
coordinating networking needs among U.S. Federal agencies
fragmentation: The process in which an IP datagram is broken
smaller pieces to fit the requirements of a given physical network
The reverse process is termed reassembly. See MTU
FRICC: Federal Research Internet Coordinating Committee.
replaced by the FNC
FTAM: File Transfer, Access, and Management. The OSI remote
service and protocol
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FTP: File Transfer Protocol. The Internet protocol (and program
used to transfer files between hosts. See FTAM
gateway: The original Internet term for what is now called router
more precisely, IP router. In modern usage, the terms "gateway"
"application gateway" refer to systems which do translation from
native format to another. Examples include X.400 to/from RFC 822
electronic mail gateways. See router
GOSIP: Government OSI Profile. A U.S. Government
specification for OSI protocols
IAB: Internet Activities Board. The technical body that oversees
development of the Internet suite of protocols (commonly referred
as "TCP/IP"). It has two task forces (the IRTF and the IETF)
charged with investigating a particular area
ICMP: Internet Control Message Protocol. The protocol used to
errors and control messages at the IP layer. ICMP is actually
of the IP protocol
IESG: Internet Engineering Steering Group. The executive
of the IETF
IETF: Internet Engineering Task Force. One of the task forces of
IAB. The IETF is responsible for solving short-term
needs of the Internet. It has over 40 Working Groups
IGP: Interior Gateway Protocol. The protocol used to
routing information between collaborating routers in the Internet
RIP and OSPF are examples of IGPs
IGRP: Internet Gateway Routing Protocol. A proprietary IGP used
cisco System's routers
INTAP: Interoperability Technology Association for
Processing. The technical organization which has the
charter to develop Japanese OSI profiles and conformance tests
intermediate system: An OSI system which is not an end system,
which serves instead to relay communications between end systems
See repeater, bridge, and router
internet: A collection of networks interconnected by a set of
which allow them to function as a single, large virtual network
Internet: (note the capital "I") The largest internet in the
consisting of large national backbone nets (such as MILNET, NSFNET
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and CREN) and a myriad of regional and local campus networks all
the world. The Internet uses the Internet protocol suite. To be
the Internet you must have IP connectivity, i.e., be able to
to--or ping--other systems. Networks with only e-mail
are not actually classified as being on the Internet
Internet address: A 32-bit address assigned to hosts using TCP/IP
See dotted decimal notation
IONL: Internal Organization of the Network Layer. The OSI
for the detailed architecture of the Network Layer. Basically,
partitions the Network layer into subnetworks interconnected
convergence protocols (equivalent to internetworking protocols),
creating what Internet calls a catenet or internet
IP: Internet Protocol. The network layer protocol for the
protocol suite
IP datagram: The fundamental unit of information passed across
Internet. Contains source and destination addresses along with
and a number of fields which define such things as the length of
datagram, the header checksum, and flags to say whether the
can be (or has been) fragmented
IRTF: Internet Research Task Force. One of the task forces of
IAB. The group responsible for research and development of
Internet protocol suite
ISDN: Integrated Services Digital Network. An emerging
which is beginning to be offered by the telephone carriers of
world. ISDN combines voice and digital network services in a
medium making it possible to offer customers digital data services
well as voice connections through a single "wire." The
that define ISDN are specified by CCITT
IS-IS: Intermediate system to Intermediate system protocol. The
protocol by which intermediate systems exchange routing information
ISO: International Organization for Standardization. You knew that
right? Best known for the 7-layer OSI Reference Model. See OSI
ISODE: ISO Development Environment. A popular implementation of
upper layers of OSI. Pronounced eye-so-dee-eee
JANET: Joint Academic Network. A university network in the U.K
JUNET: Japan UNIX Network
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KA9Q: A popular implementation of TCP/IP and associated protocols
amateur packet radio systems
Kermit: A popular file transfer and terminal emulation program
little-endian: A format for storage or transmission of binary data
which the least significant byte (bit) comes first. See big-endian
mail exploder: Part of an electronic mail delivery system
allows a message to be delivered to a list of addressees.
exploders are used to implement mailing lists. Users send
to a single address (e.g., hacks@somehost.edu) and the mail
takes care of delivery to the individual mailboxes in the list
mail gateway: A machine that connects two or more electronic
systems (especially dissimilar mail systems on two
networks) and transfers messages between them. Sometimes the
and translation can be quite complex, and generally it requires
store-and-forward scheme whereby the message is received from
system completely before it is transmitted to the next system
suitable translations
Martian: Humorous term applied to packets that turn up
on the wrong network because of bogus routing entries. Also used
a name for a packet which has an altogether bogus (non-registered
ill-formed) Internet address
MHS: Message Handling System. The system of message user agents
message transfer agents, message stores, and access units
together provide OSI electronic mail. MHS is specified in the
X.400 series of Recommendations
MIB: Management Information Base. A collection of objects that
be accessed via a network management protocol. See SMI
MILNET: MILitary NETwork. Originally part of the ARPANET, MILNET
partitioned in 1984 to make it possible for military installations
have reliable network service, while the ARPANET continued to be
for research. See DDN
MTA: Message Transfer Agent. An OSI application process used
store and forward messages in the X.400 Message Handling System
Equivalent to Internet mail agent
MTU: Maximum Transmission Unit. The largest possible unit of
that can be sent on a given physical medium. Example: The MTU
Ethernet is 1500 bytes. See fragmentation
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multicast: A special form of broadcast where copies of the packet
delivered to only a subset of all possible destinations.
broadcast
multi-homed host: A computer connected to more than one physical
link. The data links may or may not be attached to the same network
name resolution: The process of mapping a name into the
address. See DNS
NetBIOS: Network Basic Input Output System. The standard
to networks on IBM PC and compatible systems
Network Address: See Internet address or OSI Network Address
Network Layer: The OSI layer that is responsible for routing
switching, and subnetwork access across the entire OSI environment
NFS(R): Network File System. A distributed file system developed
Sun Microsystems which allows a set of computers to
access each other's files in a transparent manner
NIC: Network Information Center. Originally there was only one
located at SRI International and tasked to serve the ARPANET (
later DDN) community. Today, there are many NICs, operated by local
regional, and national networks all over the world. Such
provide user assistance, document service, training, and much more
NIST: National Institute of Standards and Technology. (
NBS). See OIW
NMS: Network Management Station. The system responsible for
a (portion of a) network. The NMS talks to network
agents, which reside in the managed nodes, via a network
protocol. See agent
NOC: Network Operations Center. Any center tasked with
operational aspects of a production network. These tasks
monitoring and control, trouble-shooting, user assistance, and so on
NSAP: Network Service Access Point. The point at which the
Network Service is made available to a Transport entity. The
are identified by OSI Network Addresses
NSF: National Science Foundation. Sponsors of the NSFNET
NSFNET: National Science Foundation NETwork. A collection of local
regional, and mid-level networks in the U.S. tied together by
high-speed backbone. NSFNET provides scientists access to a
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of supercomputers across the country
OIW: Workshop for Implementors of OSI. Frequently called NIST OIW
the NIST Workshop, this is the North American regional forum at
OSI implementation agreements are decided. It is equivalent to
in Europe and AOW in the Pacific
ONC(tm): Open Network Computing. A distributed
architecture promoted and controlled by a consortium led by
Microsystems
OSI: Open Systems Interconnection. An international
program to facilitate communications among computers from
manufacturers. See ISO
OSI Network Address: The address, consisting of up to 20 octets,
to locate an OSI Transport entity. The address is formatted into
Initial Domain Part which is standardized for each of
addressing domains, and a Domain Specific Part which is
responsibility of the addressing authority for that domain
OSI Presentation Address: The address used to locate an
Application entity. It consists of an OSI Network Address and up
three selectors, one each for use by the Transport, Session,
Presentation entities
OSPF: Open Shortest Path First. A "Proposed Standard" IGP for
Internet. See IGP
PCI: Protocol Control Information. The protocol information added
an OSI entity to the service data unit passed down from the
above, all together forming a Protocol Data Unit (PDU).
PDU: Protocol Data Unit. This is OSI terminology for "packet."
PDU is a data object exchanged by protocol machines (entities)
a given layer. PDUs consist of both Protocol Control
(PCI) and user data
Physical Layer: The OSI layer that provides the means to activate
use physical connections for bit transmission. In plain terms,
Physical Layer provides the procedures for transferring a single
across a Physical Media
Physical Media: Any means in the physical world for
signals between OSI systems. Considered to be outside the OSI Model
and therefore sometimes referred to as "Layer 0." The
connector to the media can be considered as defining the
interface of the Physical Layer, i.e., the bottom of the
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Reference Model
ping: Packet internet groper. A program used to test reachability
destinations by sending them an ICMP echo request and waiting for
reply. The term is used as a verb: "Ping host X to see if it is up!"
port: The abstraction used by Internet transport protocols
distinguish among multiple simultaneous connections to a
destination host. See selector
POSI: Promoting Conference for OSI. The OSI "800-pound gorilla"
Japan. Consists of executives from the six major Japanese
manufacturers and Nippon Telephone and Telegraph. They set
and commit resources to promote OSI
PPP: Point-to-Point Protocol. The successor to SLIP, PPP
router-to-router and host-to-network connections over
synchronous and asynchronous circuits. See SLIP
Presentation Address: See OSI Presentation Address
Presentation Layer: The OSI layer that determines how
information is represented (i.e., encoded) while in transit
two end systems
PRMD: Private Management Domain. An X.400 Message Handling
private organization mail system. Example: NASAmail. See ADMD
protocol: A formal description of messages to be exchanged and
to be followed for two or more systems to exchange information
proxy: The mechanism whereby one system "fronts for" another
in responding to protocol requests. Proxy systems are used
network management to avoid having to implement full protocol
in simple devices, such as modems
proxy ARP: The technique in which one machine, usually a router
answers ARP requests intended for another machine. By "faking"
identity, the router accepts responsibility for routing packets
the "real" destination. Proxy ARP allows a site to use a single
address with two physical networks. Subnetting would normally be
better solution
PSN: Packet Switch Node. The modern term used for nodes in
ARPANET and MILNET. These used to be called IMPs (Interface
Processors). PSNs are currently implemented with BBN C30 or C300
minicomputers
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RARE: Reseaux Associes pour la Recherche Europeenne.
association of research networks
RARP: Reverse Address Resolution Protocol. The Internet protocol
diskless host uses to find its Internet address at startup.
maps a physical (hardware) address to an Internet address. See ARP
RBOC: Regional Bell Operating Company. See BOC
repeater: A device which propagates electrical signals from one
to another without making routing decisions or providing
filtering. In OSI terminology, a repeater is a Physical
intermediate system. See bridge and router
RFC: Request For Comments. The document series, begun in 1969,
describes the Internet suite of protocols and related experiments
Not all (in fact very few) RFCs describe Internet standards, but
Internet standards are written up as RFCs
RFS: Remote File System. A distributed file system, similar to NFS
developed by AT&T and distributed with their UNIX System V
system. See NFS
RIP: Routing Information Protocol. An Interior Gateway
(IGP) supplied with Berkeley UNIX
RIPE: Reseaux IP Europeenne. European continental TCP/IP
operated by EUnet. See EUnet
rlogin: A service offered by Berkeley UNIX which allows users of
machine to log into other UNIX systems (for which they
authorized) and interact as if their terminals were
directly. Similar to Telnet
ROSE: Remote Operations Service Element. A lightweight RPC protocol
used in OSI Message Handling, Directory, and Network
application protocols
router: A system responsible for making decisions about which
several paths network (or Internet) traffic will follow. To do
it uses a routing protocol to gain information about the network,
algorithms to choose the best route based on several criteria
as "routing metrics." In OSI terminology, a router is a
Layer intermediate system. See gateway, bridge and repeater
RPC: Remote Procedure Call. An easy and popular paradigm
implementing the client-server model of distributed computing.
request is sent to a remote system to execute a designated procedure
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using arguments supplied, and the result returned to the caller
There are many variations and subtleties, resulting in a variety
different RPC protocols
RTSE: Reliable Transfer Service Element. A lightweight
application service used above X.25 networks to handshake
PDUs across the Session Service and TP0. Not needed with TP4,
not recommended for use in the U.S. except when talking to X.400
ADMDs
SAP: Service Access Point. The point at which the services of an
layer are made available to the next higher layer. The SAP is
according to the layer providing the services: e.g.,
services are provided at a Transport SAP (TSAP) at the top of
Transport Layer
selector: The identifier used by an OSI entity to distinguish
multiple SAPs at which it provides services to the layer above.
port
Session Layer: The OSI layer that provides means for dialogue
between end systems
SGMP: Simple Gateway Management Protocol. The predecessor to SNMP
See SNMP
SLIP: Serial Line IP. An Internet protocol used to run IP
serial lines such as telephone circuits or RS-232
interconnecting two systems. SLIP is now being replaced by PPP.
PPP
SMDS: Switched Multimegabit Data Service. An emerging high-
networking technology to be offered by the telephone companies in
U.S
SMI: Structure of Management Information. The rules used to
the objects that can be accessed via a network management protocol
See MIB
SMTP: Simple Mail Transfer Protocol. The Internet electronic
protocol. Defined in RFC 821, with associated message
descriptions in RFC 822.
SNA: Systems Network Architecture. IBM's proprietary
architecture
SNMP: Simple Network Management Protocol. The network
protocol of choice for TCP/IP-based internets
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SPAG: Standards Promotion and Application Group. A group of
OSI manufacturers which chooses option subsets and publishes these
a "Guide to the Use of Standards" (GUS).
SQL: Structured Query Language. The international standard
for defining and accessing relational databases
subnet mask: See address mask
subnetwork: A collection of OSI end systems and intermediate
under the control of a single administrative domain and utilizing
single network access protocol. Examples: private X.25 networks
collection of bridged LANs
TCP: Transmission Control Protocol. The major transport protocol
the Internet suite of protocols providing reliable, connection
oriented, full-duplex streams. Uses IP for delivery. See TP4.
Telnet: The virtual terminal protocol in the Internet suite
protocols. Allows users of one host to log into a remote host
interact as normal terminal users of that host
three-way-handshake: The process whereby two protocol
synchronize during connection establishment
TP0: OSI Transport Protocol Class 0 (Simple Class). This is
simplest OSI Transport Protocol, useful only on top of an X.25
network (or other network that does not lose or damage data).
TP4: OSI Transport Protocol Class 4 (Error Detection and
Class). This is the most powerful OSI Transport Protocol, useful
top of any type of network. TP4 is the OSI equivalent to TCP
transceiver: Transmitter-receiver. The physical device that
a host interface to a local area network, such as Ethernet.
transceivers contain electronics that apply signals to the cable
sense collisions
Transport Layer: The OSI layer that is responsible for reliable end
to-end data transfer between end systems
UA: User Agent. An OSI application process that represents a
user or organization in the X.400 Message Handling System. Creates
submits, and takes delivery of messages on the user's behalf
UDP: User Datagram Protocol. A transport protocol in the
suite of protocols. UDP, like TCP, uses IP for delivery; however
unlike TCP, UDP provides for exchange of datagrams
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acknowledgements or guaranteed delivery. See CLTP
UUCP: UNIX to UNIX Copy Program. A protocol used for
between consenting UNIX systems
XDR: eXternal Data Representation. A standard for machine
independent data structures developed by Sun Microsystems.
to ASN.1.
X/Open: A group of computer manufacturers that promotes
development of portable applications based on UNIX. They publish
document called the X/Open Portability Guide
X Recommendations: The CCITT documents that describe
communication network standards. Well-known ones include: X.25
Packet Switching standard, X.400 Message Handling System, and X.500
Directory Services
The X Window System (TM): A popular window system developed by
and implemented on a number of workstations
For More
As indicated in the introduction, this is only a partial list
words from the world of interoperability. Yes, you're right,
didn't list "interoperability" because the jury is still out
exactly what it means, and we invite you to suggest a definition
To learn more about these topics, consult the books,
documents, bibliographies, periodicals, mailing lists, etc. listed
"Information Sources" in the December 1989 issue of ConneXions--
Interoperability Report
Security
Security issues are not discussed in this memo
Jacobsen & Lynch [Page 17]
RFC 1208 INTEROP Pocket Glossary March 1991
Authors'
Ole J.
Interop, Inc
480 San Antonio
Suite 100
Mountain View, CA 94040
Phone: (415) 941-3399
EMail: OLE@CSLI.STANFORD.
Daniel C.
Interop, Inc
480 San Antonio
Interop, Inc
480 San Antonio
Suite 100
Mountain View, CA 94040
Phone: (415) 941-3399
EMail: Lynch@ISI.
Jacobsen & Lynch [Page 18]
if you see any problems within the linking, don't worry be happy,
this is version 0.1 of the Relevance System and you gotta expect some crappy subroutines sometimes,
just be content we did not write this in Java, which would have made this "bigger and better" HAHAHHA.
RFC documents can be found at I.E.T.F.
Relevance System Copyright © 2002 Spectrum WorldResearch
other technical nosh by ServerMasters Corporation
collaboration of BobX
