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LOSSARY
Glossary-8
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.
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.
Virtual LAN (VLAN)
A Virtual LAN is a collection of network nodes that share the same
collision domain regardless of their physical location or connection point
in the network. A VLAN serves as a logical workgroup with no physical