TCP/IP Configuration and Management Manual

Glossary
TCP/IP Configuration and Management Manual—427132-004
Glossary-8
hop count
of header tokens by passing appropriate token codes to SSGET and can change the
values of some header tokens by passing their token codes to SSPUT.
Examples of header tokens for commands are the command number, the object type,
the maximum-response token, the server-version token, the maximum-field-version
token, and the checksum token. Command and response messages contain a
specified set of header tokens; event messages, a different set with some overlap. See
also SPI message
.
hop count. A measure of distance between two points in the Internet. A hop count of n
means that
n gateways separate the source destination.
ICMP. See Interior Gateway Protocol (IGP).
IEEE. See Institute of Electrical and Electronics Engineers (IEEE).
IEEE 802.3. A local area network protocol suite commonly known as Ethernet. Ethernet has
either a 10Mbps or 100Mbps throughput and uses Carrier Sense Multiple Access bus
with Collision Detection (CSMA/CD. This method allows users to share the network
cable. However, only one station can use the cable at a time. A variety of physical
medium dependent protocols are supported.
IEE 802.5. A local area network protocol suite commonly known as token ring. A standard
originated by IBM for a token-passing ring network that can be configured in a star
topology. Versions supported are 4Mbps and 16 Mbps.
IEN. See Internet Engineering Note (IEN).
IGP. See Interior Gateway Protocol (IGP).
Interior Gateway Protocol (IGP). The generic term applied to any protocol used to
propagate network reachability and routing information within an autonomous system.
Although no standard Internet IGP exists, RIP is among the most popular.
Institute of Electrical and Electronics Engineers (IEEE). An international industry group
that develops standards for many areas of electrical engineering and computers.
interactive command. In DSM, a command entered by a human operator rather than by a
program. See also programmatic command
.
International Organization for Standardization (ISO). A United Nations organization,
established to promote the development of standards to facilitate the international
exchange of goods and services and to develop mutual cooperation in areas of
intellectual, scientific, technological, and economic activity.
Internet. Physically, a collection of packet switching networks interconnected by gateways,
along with protocols that allow them to function logically as a single, large, virtual
network. When written in uppercase, INTERNET refers specifically to the DARPA
Internet and the TCP/IP protocols it uses.