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Glossary
GL-4
8000-A2-GB20-50
April 2000
Transmission Control Protocol. An Internet standard transport layer protocol defined in
STD 7, RFC 793. It is connection-oriented and stream-oriented.
Virtual terminal protocol in the Internet suite of protocols. Allows the user of one host
computer to log into a remote host computer and interact as a normal terminal user of the
remote host.
Software that allows a PC to mimic the signals of a specific type of terminal, such as a
VT100 or 3270, to communicate with a device requiring that terminal interface.
Trivial File Transfer Protocol. A standard TCP/IP protocol that allows simple file transfer to
and from a remote system without directory or file listing. TFTP is used when FTP is not
available.
A program that lists the hosts in the path to a specified destination.
In the direction of the telephone network.
EXtended Terminal Access Controller Access Control System. A user authentication
protocol, it is a Cisco extension of RFC 927.
TCP
Telnet
terminal emulation
TFTP
TraceRoute
upstream
XTACACS