Glossary

NTP

Network Time Protocol.

NVRAM

Non-Volatile RAM.

OpenLane DCE

A proprietary network management program used with HP OpenView that helps a network

Manager

administrator manage SNMP devices.

packet

A group of control and data characters that are switched as a unit within a communications

 

network.

PDU

Protocol Data Unit. A message containing protocol-specific information.

PING

Packet InterNet Groper. Used for testing and debugging networks, PING sends an echo

 

packet to the specified host, waits for a response, then reports the results of its operation.

 

Used as a verb, to PING means to use the program to verify the accessibility of a device.

 

The PING program is supported from both the DSL and MCC cards.

POTS

Plain Old Telephone Service. Standard telephone service over the PSTN with an analog

 

bandwidth of less than 4 Hz.

POTS Splitter

A device that filters out the DSL signal and allows the POTS frequencies to pass through.

PPP

Point-to-Point Protocol. as specified by Internet RFC 1661.

proxy ARP

Proxy Address Resolution Protocol (ARP). A technique for using a single IP address for

 

multiple networks. A device responds to ARP requests with its own physical address, then

 

routes packets to the proper recipients.

PSTN

Public Switched Telephone Network. A network shared among many users who can use

 

telephones to establish connections between two points. Also know as dial network.

RADSL

Rate Adaptive Digital Subscriber Line. A technique for the use of an existing twisted-pair

 

line that permits simultaneous POTS and high-speed data communication at adaptive

 

symmetric and asymmetric rates.

rate adaption

The ability to automatically adapt when the port speed is lower than the line speed.

Router

A device that connects LANs by dynamically routing data according to destination and

 

available routes.

Routing Table

A table used by a node to route traffic to another node in the multiplexer network.

RTT

Round Trip Time.

RTU

Remote Termination Unit. A DSL device installed at the customer premises.

s1c

Interface name of a DSL card's DSL port #1.

s1d

Interface name of a DSL card's DSL port #2.

s1e

Interface name of a DSL card's DSL port #3.

s1f

Interface name of a DSL card's DSL port #4.

Service Node

SN. Endpoint modem at the customer premise, also known as a Remote Termination Unit

 

(RTU). There are two model types. See RADSL and MVL.

SNMP

Simple Network Management Protocol. Protocol for open networking management.

SNMP agent

An application level program that facilitates communication between an SNMP

 

management system and a device. See NMS.

SNMP trap

A message sent to an SNMP manager to notify it of an event, such as a device being

 

reset.

GL-4

January 1999

8000-A2-GB26-10

Page 104
Image 104
Paradyne 8510 RADSL OpenLane DCE, Manager, Packet, Pots Splitter, Proxy ARP, Rate adaption, Router, Routing Table, S1c