D-Link DES-3226L Cli Command Reference page 128

128 D-Link DES-3226L Command Line Reference
vMAN. Virtual Metropolitan Area Network.
VPN/CoS ID. Virtual Private Network/Cost of Service
ID.
W
WAN. See "Wide Area Network" on page 128.
Web. Also known as World-Wide Web (WWW) or W3.
An Internet client-server system to distribute information,
based upon the hypertext transfer protocol (HTTP).
Wide Area Network. A WAN is a computer network that
spans a relatively large geographical area. Typically, a
WAN consists of two or more local-area networks
(LANs).
X
XModem. One of the most popular file transfer protocols
(FTPs). Xmodem is fairly effective at detecting errors. It
sends blocks of data together with a checksum and then
waits for acknowledgment of the block's receipt. The
waiting slows down the rate of data transmission
considerably, but it ensures accurate transmission.
Xmodem can be implemented either in software or in
hardware. Many modems, and almost all communications
software packages, support Xmodem. However, it is
useful only at relatively slow data transmission speeds
(less than 4,800 bps). Enhanced versions of Xmodem that
work at higher transmission speeds are known as Ymodem
and Zmodem.