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Asus GigaX2008EX User Manual

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GigaX2008EX L2 Managed Switch User Manual

bundled with higher-level applications such as HTTP, FTP,

Telnet, etc., TCP/IP refers to this whole suite of protocols.

Telnet/SSH

An interactive, character-based program used to access a

remote computer. While HTTP (the web protocol) and FTP

only allow you to download files from a remote computer,

Telnet / SSH allows you to log into and use a computer from

a remote location.

TFTP

Trivial File Transfer Protocol

A protocol for file transfers, TFTP is easier to use than File

Transfer Protocol (FTP) but not as capable or secure.

Trunk

Two or more ports are combined as one virtual port, also

called as Link Aggregation.

TTL

Time To Live

A field in an IP packet that limits the life span of that packet.

Originally meant as a time duration, the TTL is usually

represented instead as a maximum hop count; each router

that receives a packet decrements this field by one. When

the TTL reaches zero, the packet is discarded.

twisted pair

The ordinary copper telephone wiring long used by telephone

companies. It contains one or more wire pairs twisted

together to reduce inductance and noise. Each telephone line

uses one pair. In homes, it is most often installed with two

pairs. For Ethernet LANs, a higher grade called Category 3

(CAT 3) is used for 10BASE-T networks, and an even higher

grade called Category 5 (CAT 5) is used for 100BASE-T

networks. See also 10BASE-T, 100BASE-T, Ethernet.

upstream

The direction of data transmission from the user to the

Internet.

VLAN

Virtual Local Area Network

WAN

Wide Area Network

Any network spread over a large geographical area, such as

a country or continent. With respect to the SL-1000, WAN

refers to the Internet.

Web browser

A software program that uses Hyper-Text Transfer Protocol

(HTTP) to download information from (and upload to) web

sites, and displays the information, which may consist of text,

graphic images, audio, or video, to the user. Web browsers

use Hyper-Text Transfer Protocol (HTTP). Popular web