Glossary
Created by EBCCW 00:06
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1553-KDU 137 365 Uen D 2006-06-16
Simple Network Management Protocol
(SNMP)
The application protocol in the Internet suite of
protocols which offers network management
services.
Simple Network Time Protocol (SNTP)
SNTP allows a device to set its internal clock
based on periodic updates from a Network
Time Protocol (NTP) server. Updates can be
requested from a specific NTP server, or can
be received through broadcasts sent by NTP
servers.
Spanning Tree Algorithm (STA)
A technology that checks the network for any
loops. A loop can often occur in complicated or
backup linked network systems. Spanning
Tree detects and directs data along the
shortest available path, maximizing the
performance and efficiency of the network.
Switched Ports
Ports that are on separate collision domains or
LAN segments.
Telnet
Defines a remote communication facility for
interfacing to a terminal device over TCP/IP.
Terminal Access Controller Access
Control System Plus (TACACS+)
TACACS+ is a logon authentication protocol that
uses software running on a central server to
control access to TACACS-compliant devices
on the network.
TIA
Telecommunications Industry Association
Transmission Control Protocol/Internet
Protocol (TCP/IP)
Protocol suite that includes TCP as the
primary transport protocol, and IP as the
network layer protocol.
Trivial File Transfer Protocol (TFTP)
A TCP/IP protocol commonly used for
software downloads.
Universal Time Coordinate (UTC)
UTC is a time scale that couples Greenwich
Mean Time (based solely on the Earth’s
rotation rate) with highly accurate atomic
time. The UTC does not have daylight saving
time.
User Datagram Protocol (UDP)
UDP provides a datagram mode for packet-
switched communications. It uses IP as the
underlying transport mechanism to provide
access to IP-like services. UDP packets are
delivered just like IP packets – connection-less
datagrams that may be discarded before
reaching their targets. UDP is useful when
TCP would be too complex, too slow, or just
unnecessary.
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