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List of terms
Nortel Multiservice Switch 7400/15000/20000
Terminology
NN10600-005 7.2S1 Standard
PCR7.2 and up March 2006
Copyright © 2006, Nortel Nortel Confidential
TDT
See traffic descriptor type (TDT) (page 135).
Telnet
A terminal access protocol for accessing remote devices over an IP-based
network. The protocol provides support for various types of terminals and is
typically found in IP- or UNIX-based environments.
To establish a Telnet connection, you need both a Telnet client and a Telnet
server. The Telnet client resides on the local device and connects to the Telnet
server on the remote device. Nortel Multiservice Switch nodes act as both a
Telnet server (for incoming Telnet connections) and a Telnet client (for
outgoing Telnet connections).
termination panel.
A panel used for cable distribution.
TFTP
See trivial file transfer protocol (TFTP) (page 137).
time-division multiple access
A technique originated in satellite communications to interweave multiple
conversations into one transponder so as to appear to get simultaneous
conversations. TDMA is a variation on TASI (time assignment speech
interpolation). TDMA is now used in cellular and other wireless
communications.
time-division multiplexing (TDM)
A method of transmitting digital signals from multiple sources in series on the
same line.
Time Management System (TMS)
Nortel Multiservice Switch system responsible for maintaining
• the calendar time on the network
• the processor time during rebooting of the FP or CP
• the module time (maintaining synchronization between, for example, an
FP and a CP)
time-of-day accounting (TODA)
Time-of-day accounting allows for accounting records to be generated up to
24 times for each day. TODA entries must be a minimum of one hour apart and
a maximum of 12 hours apart. The DCS-managed table holding 24 entries
manages this accounting feature. When TODA is enabled the system is in
TODA mode. A TODA changeover occurs whenever the actual time of day
changes from one interval to another. See
timer-mode accounting (page 134).