Edge Products ES3528-WDM - Manual (Page 548)

Glossary
Glossary-6
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 via broadcasts sent by NTP servers.
Spanning Tree Algorithm (STA)
A technology that checks your 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.
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.
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.