Motorola SURFBOARD SVG2500 User Manual page 170

17 GLOSSARY
TERM
ROM
router
routing table
RTS
S
TERM
scope
server
service
provider
SDU
SID
SME
SMTP
SNMP
SOHO
spectrum
spectrum
allocation
DEFINITION
read-only memory
On IP networks, a device connecting at least two networks,
which may or may not be similar. A router is typically located at a
gateway between networks. A router operates on OSI network
layer 3. It filters packets based on the IP address, examining
the source and destination IP addresses to determine the
best route on which to forward them.
A router is often included as part of a network switch. A router
can also be implemented as software on a computer.
A table listing available routes that is used by a router to
determine the best route for a packet.
request to send
DEFINITION
The set of IP addresses that a DHCP server can lease to clients.
In a client/server architecture, a dedicated computer that supplies
files or services such as file transfer, remote login, or printing to
clients.
A company providing data or telephone services to
subscribers.
service data unit
A service ID is a unique 14-bit identifier the CMTS assigns to a
cable modem or gateway that identifies the traffic type it carries
(for example, data or voice). The SID provides the basis for the
CMTS to allocate bandwidth to the cable modem and
implement CoS.
small and medium enterprise
Simple Mail Transfer Protocol is a standard Internet protocol for
transferring e-mail.
Simple Network Management Protocol is a standard to monitor
and manage networks and network devices. Data is exchanged
using PDU messages.
small office home office
A specified range of frequencies used for transmission of
electromagnetic signals.
An allocation of portions of the available electromagnetic
spectrum for specific services, such as AM, FM, or personal
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