Ericsson W20 manual Transmission Control Protocol / Internet Protocol

Glossary

TCP/IP

Transmission Control Protocol / Internet Protocol.

The basic protocols used on the Internet. TCP is responsible for dividing data up into packets for delivery and reassembling them at the destination. IP is responsible for delivering the packets from source to destination. When TCP and IP are bundled with higher-level applications such as HTTP, FTP, Telnet, and so on, TCP/IP refers to this whole suite of protocols.

TFTP

Trivial File Transfer Protocol.

A TCP/IP protocol commonly used for software downloads.

TKIP

Temporal Key Integrity Protocol.

A protocol used for WPA data encryption. It ensures that a unique master key is generated for each packet, supports message integrity and sequencing rules, and supports re-keying mechanisms. TKIP avoids the problems of WEP static keys by dynamically changing data encryption keys.

UDP

User Datagram Protocol.

Aconnection-less transport service that dispenses with the reliability services provided by TCP. UDP gives applications a direct interface with IP and the ability to address a particular application process running on a host via a port number, without setting up a connection session.

UPnP

Universal Plug and Play.

A networking architecture that provides compatibility among networking equipment, software, or between equipment and software.

UPnP IGD

UPnP Internet Gateway Device.

A standard used by UPnP aware clients, such as MSN Messenger, to work properly from behind a NAT.

UMTS

Universal Mobile Telecommunications Service.

A 3G wireless system that delivers high- bandwidth data and voice services to mobile users. UMTS has an air interface based on WCDMA and a core network based on the General Packet Radio Service (GPRS).

URL

Uniform Resource Locator.

The address of a resource on the Internet.

USB

Universal Serial Bus.

An interface for connecting peripherals such as storage devices and printers to a host.

WAN

Wide Area Network.

A network of computers that covers a large geographical distance. With respect to the Ericsson W20, WAN refers to the Internet.

WCDMA Wideband CDMA.

The radio access technology for wideband wireless access supporting 3G services. It allows very high speed multimedia services like wireless Internet access and videoconferencing. WCDMA is also known as CDMA DS (Direct Sequence).

WEP

Wired Equivalent Privacy.

A method for data encryption on wireless networks. Data is encrypted into blocks of either 64 bits length or 128 bits length. The encrypted data can only be sent and received by users with access to a private encryption key.

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