Glossary
Subnet Mask
A
SVC
Switched Virtual Circuit. A logical connection between two points that is dynamically established and only exists during transmission. In ATM networking, the SVC connection is established via signalling.
Switch
A device that filters and forwards packets between LAN segments. Switches operate at the Data Link Layer of the OSI reference model and support any packet protocol.
Switch Monitoring
Refer to SMON on page 209.
TCP/IP
Transmission Control Protocol/Internet Protocol. Common name for the suite of protocols used to connect hosts on the Internet. TCP/IP uses several protocols, of which TCP and IP are the main ones.
Telnet
A terminal emulation protocol for TCP/IP networks. Telnet is used for remote terminal connection, enabling users to log in to remote systems and use these resources as if they were connected to a local system.
TFTP
Trivial File Transfer Protocol. A simple form of File Transfer Protocol, using User Datagram Protocol (UDP) and providing no security features. TFTP is often used by servers to boot diskless workstations,
Token Ring
A type of LAN standardized as IEEE 802.5. In a Token Ring network, a supervisory frame, or token, is passed from station to adjacent station sequentially. Stations wishing to gain access to the network must wait for the token to arrive before transmitting data.
Transceiver
A device that both transmits and receives analog or digital signals. Usually used to describe the LAN component that applies signals onto the network wire and detects signals passing through the wire.
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