Glossary

10BaseT

A 10-Mbps Ethernet LAN that works on twisted-pair wiring.

address

A symbol (usually numeric) that identifies the interface attached to a network.

ARP

Address Resolution Protocol. Part of the TCP/IP suite, ARP dynamically links an IP

 

address with a physical hardware address.

authentication server

An authentication server can either be a RADIUS server or an XTACACS server and can

 

be used to confirm an end-user system's access location.

backplane

A common bus at the rear of a nest or chassis that provides communications and power to

 

circuit card slots.

bandwidth

The range of frequencies that can be passed by a transmission medium, or the range of

 

electrical frequencies a device is capable of handling.

BootP

Bootstrap Protocol. Described in RFCs951 and 1084, it is used for booting diskless nodes.

bps

Bits per second. Bits per second. Indicates the speed at which bits are transmitted across

 

a data connection.

byte

A sequence of successive bits (usually eight) handled as a unit in data transmission.

CAP

Carrierless Amplitude Modulation and Phase Modulation. A transmission technology for

 

implementing a Digital Subscriber Line (DSL). The transmit and receive signals are

 

modulated into two wide-frequency bands using passband modulation techniques.

central office

CO. The PSTN facility that houses one or more switches serving local telephone

 

subscribers.

Community name

An identification used by an SNMP manager to grant an SNMP server access rights to

 

MIB.

default route

The address used for routing packets whose destination is not in the routing table. In

 

Routing Information Protocol (RIP), this is IP address 0.0.0.0.

DHCP

Dynamic Host Configuration Protocol. A Microsoft protocol for dynamically allocating IP

 

addresses.

DHCP Relay Agent

A system that detects and forwards DHCP discover or request messages to the

 

appropriate DHCP server.

DHCP Server

A server which uses DHCP to allocate network addresses and deliver configuration

 

parameters to dynamically configured hosts.

domain

A block of IP addresses. Syntactically, all IP addresses within a given domain would share

 

a common IP address prefix of some length.

downstream

In the direction of the customer premises.

DSL

Digital Subscriber Line. DSL is a copper loop transmission technology enabling high-speed

 

access in the local loop.

DSL card

Digital Subscriber Line Card. The primary card in the Hotwire DSLAM system. It has one

 

Ethernet port and four DSL ports.

DSLAM

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

 

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

8000-A2-GB26-00

May 1998

GL-1

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Paradyne 8510 DSL, 8310 MVL manual Glossary