Motorola SURFBOARD SVG2500 - Manual (Page 170)

17 GLOSSARY
155
TERM DEFINITION
ROM read-only memory
router 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.
routing table A table listing available routes that is used by a router to
determine the best route for a packet.
RTS request to send
S
TERM DEFINITION
scope The set of IP addresses that a DHCP server can lease to clients.
server In a client/server architecture, a dedicated computer that supplies
files or services such as file transfer, remote login, or printing to
clients.
service
provider A company providing data or telephone services to
subscribers.
SDU service data unit
SID 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.
SME small and medium enterprise
SMTP Simple Mail Transfer Protocol is a standard Internet protocol for
transferring e-mail.
SNMP Simple Network Management Protocol is a standard to monitor
and manage networks and network devices. Data is exchanged
using PDU messages.
SOHO small office home office
spectrum A specified range of frequencies used for transmission of
electromagnetic signals.
spectrum
allocation An allocation of portions of the available electromagnetic
spectrum for specific services, such as AM, FM, or personal