Motorola SVG2500 User Manual page 138

This document is uncontrolled pending incorporation in PDM
17 GLOSSARY
P
TERM
packet
packet-
switched
PacketCable
pass-through
PAT
PCI
PCMCIA
PDA
PDU
periodic
ranging
physical layer
piggybacking
DEFINITION
The unit of data that is routed between the sender and
destination on the Internet or other packet-switched network.
When data, such as an e-mail message, is sent over the Internet,
the sender's IP divides the data into uniquely-numbered packets.
The packet header contains the source and destination IP
addresses. The individual packets may travel different routes.
When all packets arrive at the destination, IP at that end
reassembles the packets.
A scheme to handle transmissions on a connectionless network
such as the Internet. An alternative is circuit-switched.
A CableLabs-led project to define a common platform to deliver
advanced, real-time multimedia services over two-way HFC
cable plant. Built on DOCSIS 1.1, PacketCable networks use IP
technology as the basis for a highly-capable multimedia
architecture.
A pass-through client on the SVG2500 LAN obtains its public IP
address from the Internet Service provider's DHCP server.
Port Address Translation
Peripheral Component Interconnect
The Personal Computer Memory Card International Association
sets international standards for connecting peripherals to
portable computers. Laptop computers typically have a PCMCIA
slot that can hold one or two PC Cards to provide features such
as Ethernet connectivity.
personal digital assistant
A protocol data unit is a message containing operational
instructions used for SNMP . The basic SNMP V2 PDU types are
get-request, get-next-request, get-bulk-request, response, set-
request, inform-request, and trap.
Ranging that is performed on an on-going basis after initial
ranging has taken place.
Layer 1 in the OSI architecture. It provides services to transmit
bits or groups of bits over a transmission link between open
systems. It entails the electrical, mechanical, and handshaking
procedures.
A process that occurs when a cable modem simultaneously
transmits data and requests additional bandwidth.
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