3Com OfficeConnect 3C855 User Manual page 74

74 G
LOSSARY
DSL modem
Ethernet
Ethernet Address
Fast Ethernet
Firewall
Full Duplex
Gateway
Half Duplex
Hub
IEEE
IETF
IP Address
requested (as in typing "3com.com" into your Internet browser), the user is sent
to the proper IP address. The DNS server address used by the computers on your
home network is the location of the DNS server your ISP has assigned.
DSL stands for digital subscriber line. A DSL modem uses your existing phone lines
to send and receive data at high speeds.
A LAN specification developed jointly by Xerox, Intel and Digital Equipment
Corporation. Ethernet networks use CSMA/CD to transmit packets at a rate of 10
Mbps over a variety of cables.
See MAC address.
An Ethernet system that is designed to operate at 100 Mbps.
Electronic protection that prevents anyone outside of your network from seeing
your files or damaging your computers.
A system that allows packets to be transmitted and received at the same time and,
in effect, doubles the potential throughput of a link.
A device that acts as a central hub by connecting to each computer's network
interface card and managing the data traffic between the local network and the
Internet.
A system that allows packets to transmitted and received, but not at the same
time. Contrast with full duplex.
A device that regenerates LAN traffic so that the transmission distance of that
signal can be extended. Hubs are similar to repeaters, in that they connect LANs of
the same type; however they connect more LANs than a repeater and are
generally more sophisticated.
Institute of Electrical and Electronics Engineers. This American organization was
founded in 1963 and sets standards for computers and communications.
Internet Engineering Task Force. An organization responsible for providing
engineering solutions for TCP/IP networks. In the network management area, this
group is responsible for the development of the SNMP protocol.
IP Internet Protocol. IP is a layer 3 network protocol that is the standard for sending
data through a network. IP is part of the TCP/IP set of protocols that describe the
routing of packets to addressed devices. An IP address consists of 32 bits divided
into two or three fields: a network number and a host number or a network
number, a subnet number, and a host number.
Internet Protocol Address. A unique identifier for a device attached to a network
using TCP/IP. The address is written as four octets separated with periods