Netopia 435 Reference Manual page 257

GL-2 Netopia ISDN Router Reference Guide
branch: A length of cable in a star network that goes from the
center of the star to a wall jack.
broadcast: A network transaction that sends data to all hosts
connected to the network.
byte: A group of bits, normally eight, which represent one data
character.
CallerID: See CND.
CHAP (challenge handshake protocol): A method for ensuring
secure network access and communications.
Class A, B, and C networks: The values assigned to the first few
bits in an IP network address determine which class designation the
network has. In decimal notation, Class A network addresses range
from 1.X.X.X to 126.X.X.X, Class B network addresses range from
128.1.X.X to 191.254.X.X, and Class C addresses range from
192.0.1.X to 223.255.254.X. For more information on IP network
address classes, see Appendix C, "Understanding IP Addressing."
client: An intelligent workstation that makes requests to other
computers known as servers. PC computers on a LAN can be
clients.
clustering: A feature that clusters remapped network numbers into
a range of sequential network numbers.
CNA (Calling Number Authentication): A security feature that will
reject an incoming call if it does not match the Calling Number field
in one of the Netopia ISDN Router's Connection Profiles.
CND (Calling Number Delivery): Also known as caller ID, a feature
that allows the Called Customer Premises Equipment (CPE) to
receive a calling party's directory number during the call
establishment phase.
community strings: Sequences of characters that serve much like
passwords for devices using SNMP. Different community strings
may be used to allow an SNMP user to gather device information or
change device configurations.
CSV (Circuit Switched Voice): Also know as Data-Over-Voice, a
feature that allows data calls to be placed or answered using ISDN
speech grade bearer capabilities.