Motorola SURFBOARD SVG2500 - Manual (Page 155)

17 GLOSSARY
140
TERM DEFINITION
circuit-switched Network connection scheme used in the traditional PSTN
telephone network, where each connection requires a
dedicated path for its duration. An alternative is packet-switched.
Class C
network An IP network containing up to 253 hosts. Class C IP addresses
are in the form “network.network. network. host.”
client In a client/server architecture, a client is a computer that
requests files or services, such as file transfer, remote login, or
printing from the server. Also called a CPE.
On a WLAN, a client is any host that can communicate with
the access point. A wireless client is also called a “station.”
CMTS A cable modem termination system is a device in the cable
system headend that interfaces the HFC network to local or
remote IP networks to connecting IP hosts, cable modems or
gateways, and subscribers. It manages all cable modem
bandwidth. It is sometimes called an edge router.
CNR carrier to noise ratio
coaxial cable A type of cable consisting of a center wire surrounded by
insulation and a grounded shield of braided (coax) wire. The
shield minimizes electrical and radio frequency interference.
Coaxial cable has high bandwidth and can support transmission
over long distances.
CoS Class of service traffic management or scheduling functions are
performed when transferring data upstream or downstream on
HFC.
CPE Customer premise equipment, typically computers,
printers, etc., are connected to the cable modem or
gateway at the subscriber’s location. CPE can be provided by
the subscriber or the Internet Service provider. Also called a
client.
crosstalk An undesired signal interfering with the desired signal.
CSMA/CD Carrier sense multiple access with collision detection
D
TERM DEFINITION
datagram In RFC 1594, a datagram is defined as “a self-contained,
independent entity of data carrying sufficient information to be
routed from the source to the destination computer without
reliance on earlier exchanges between this source and
destination computer and the transporting network.” For the
most part, it has been replaced by the term packet.