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Appendix F
IP address
A 32-bit address assigned to hosts using Transmission Control Protocol/
Internet Protocol (TCP/IP). An IP address belongs to one of five classes
(A, B, C, D or E) and is written as four octets separated by periods (for
example, 192.168.10.10), also called the dotted decimal format. Each
address consists of a network number, an optional subnetwork number
and a host number. The network and subnetwork numbers together are
used for routing, while the host number is used to address an individual
host within the network or subnetwork. A subnet mask is used to extract
network and subnetwork information from the IP address. Also called
an Internet address.
LAN
see local area network (LAN)
Leased IP address
An IP address assigned by the Dynamic Host Configuration Protocol
(DHCP) to an unrecognized computing device. This method involves
setting up a leased pool of IP addresses that are allocated dynamically
when new devices are booted and recognized on the network.
Local area network (LAN)
A high-speed, low-error data network covering a relatively small
geographic area (up to a few thousand meters). A LAN connects
workstations, peripherals, terminals and other devices in a single
building or other geographically limited area. LAN standards specify
cabling and signaling at the physical and data link layers of the Open
Systems Interconnection (OSI) model. Widely used LAN technologies
include Ethernet, fiber distributed data interface (FDDI) and token ring.
See also wide area network (WAN).
Logical memory
see virtual memory
Media access control (MAC) sublayer
The lower of the two sublayers of the data link layer defined by the
IEEE. The MAC sublayer handles access to shared media, such as
whether token passing or contention is used.
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