Glossary

DSLAM

Digital Subscriber Line Access Multiplexer. DSLAM provides simultaneous high-speed

 

digital data access and analog POTS over the same twisted-pair telephone line.

Ethernet

A type of network that supports high-speed communication among systems. It is a 10-Mb/s

 

standard for LANs. All hosts are connected to a coaxial cable where they contend for

 

network access using a Carrier Sence Multiple Access with Collision Detection

 

(CSMA/CD) paradigm.

Ethernet Address

A six-part hexadecimal number in which a colon separates each part (for example,

 

8:0:20:1:2f:0). This number identifies the Ethernet communications board installed in a PC

 

and is used to identify the PC as a member of the network.

Filter

A rule or set of rules applied to a specific interface to indicate whether a packet can be

 

forwarded or discarded.

FTP

File Transfer Protocol. A protocol that allows a user on one host to access, and transfer

 

files to and from, another host over a network. The FTP application is used to provide file

 

transfer services across a wide variety of systems through the use of the File Transfer

 

Protocol (FTP). Usually implemented as application level programs, FTP uses the

 

TELNET and TCP protocols. The server side requires a client to supply a login identifier

 

and password before it will honor requests.

gateway address

The subnet that the end-user system is on. This address, which is the e1a address of the

 

domain, is used as the return address when the authentication server responds.

HDLC

High-Level Data Link Control. A communications protocol defined by the International

 

Standards Organization (ISO).

ICMP

Internet Control Management Protocol. Internet protocol that allows for the generation of

 

error messages, tests packets, and information messages related to IP.

Internet

Worldwide interconnected networks that predominantly use the TCP/IP protocol. The

 

Internet is a three level hierarchy composed of backbone networks, mid-level networks,

 

and sub networks.

Intranet

Private network that uses internet software and internet standards. The Intranet is

 

reserved for use by people who have been given the authority and passwords necessary

 

to use that network.

IP

Internet Protocol. The TCP/IP standard protocol that defines the IP as a unit of information

 

passed across an Internet and provides the basis for packet delivery service. IP includes

 

the ICMP control and error message protocol as an integral part. The entire protocol suite

 

is often referred to as TCP/IP because TCP and IP are the two most fundamental

 

protocols.

IP Address

Internet Protocol address. This is a 32-bit address assigned to host on a TCP/IP Internet.

 

The IP address has a host component and a network component.

ISN

Interservice Network.

ISP

Internet Service Provider.

LAN

Local Area Network. A network that spans a small geographic area (e.g., a building).

MAC

Media-specific Access Control. A protocol where packets transmitted over LAN ports are

 

encapsulated in Ethernet II MAC frames.

MAC Address

Media Access Control Address. Areas of memory your CPU uses to distinguish between

 

the various peripheral devices connected to your system when transferring or receiving

 

data. The MAC address is also known as the physical address.

GL-2

November 1997

8000-A2-GB20-20

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Paradyne 8546, 8540 manual Ethernet Address, Filter, Gateway address, Internet, Intranet, IP Address, MAC Address