Glossary
Description
| TCP（Transfer Control | ||
| Protocol） | reliable | |
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| TCP/IP（Transmission | Common name for the suite of protocols to support the | |
T | Control Protocol/ Internet | construction of worldwide Internetworks. TCP and IP are the two | |
Protocol） | |||
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| Telnet（Telecommunication | Telnet is used for remote terminal connection, enabling users to | |
| Network protocol） | log in to remote systems and use resources as if they were | |
| connected to a local system. | ||
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| UDP（User Datagram | UDP is a simple protocol that exchanges datagrams without | |
| acknowledgments or guaranteed delivery, requiring that error | ||
| Protocol） | ||
| processing and retransmission be handled by other protocols. | ||
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| UPnP（Universal Plug and | UPnP is a set of networking protocols for primarily residential | |
U | networks without enterprise class devices that permits | ||
| Play） | networked devices. | |
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| URL（Uniform Resource | URL describes the access method and the location of an | |
| Locator） | information resource object on the Internet | |
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| Group of devices on one or more LANs that are configured | |
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| (using management software) so that they can communicate as | |
V | VLAN（ Virtual Local Area | if they were attached to the same wire, when in fact they are | |
Network） | located on a number of different LAN segments. Because | ||
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| VLANs are based on logical instead of physical connections, | |
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| they are extremely flexible. | |
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| Data communications network that serves users across a broad |
WWAN（Wide Area Network）geographic area and often uses transmission devices provided by common carriers.
