Accton Technology VS4512DC Management Manual page 328

Glossary
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)
provides a datagram mode for packet-switched communications. It uses IP as
UDP
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.
VDSL
Very high data rate Digital Subscriber Line: A family of digital telecommunications
protocols designed to allow high-speed data communication at data rates from
below 1 Mbps to 52.8 Mbps with the corresponding maximum reach ranging from
4500 feet to 1000 feet of 24-gauge twisted-pair cable over the existing copper
telephone lines between end-users and telephone companies.
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 barriers, and allows users to share
information and resources as though located on the same LAN.
XModem
A protocol used to transfer files between devices. Data is grouped in 128-byte
blocks and error-corrected.
Glossary-6