Octal-Port DMT ATU-C Line Card
Glossary
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Cisco IOS Release 12.1(6)DA
router A system responsible for making decisions about which of several paths network (or Internet) traffic
will follow.To do this, it uses a routing protocol to gain information about the network and algorithms
to choose the best route based on several criteria known as “routing metrics.” See alsobridge.
routing table Information stored within a router that contains network path and status information. It is used to
select the most appropriate route to forward information along.
S
Simple Network
Management
Protocol
See SNMP.
slot A numbered location within a chassis capable of housing a module.
SNMP Simple Network Management Protocol. The network management protocol of choice for
TCP/IP-based internets.
SVC Stands for switched virtual connection. A temporary virtual connection between two users.
T
TCP Transmission Control Protocol. The major transport protocol in the Internet suite of protocols
providing reliable, connection-oriented full-duplex streams.
T1.413 The ANSI standard for line coding and framing for full rate ADSL.
Telnet The virtual terminal protocol in the Internet suite of protocols. Allows users of one host to log into a
remote host and act as normal terminal users of that host.
TFTP TrivialFile Transfer Protocol. A simple file transfer protocol (a simplifiedversion of FTP) that is often
used to boot diskless workstationsand other network devices such as routers over a network (typically
a LAN). Has no password security.
training The procedure used by the ATU-C and ATU-R to establish an end-to-end ADSL connection.
training mode Characteristic of a router that allowsit to use RADSL technology to adjust its line speed according to
noise conditions on the transmission line.
Transmission
Control Protocol See TCP.
Trivial File Transfer
Protocol See TFTP.
trellis encoding A channel coding technique which provides forward error correction capability.
twisted pair Two insulated copper wires twisted together with the twists or lays varied in length to reduce potential
signal interference between the pairs.