GLOSSARY 163
VLAN Virtual LAN. A group of location- and topology-independent devices
that communicate as if they are on the same physical LAN.
WAN Wide Area Network. A communications network that covers a wide
area. A WAN can cover a large geographic area, and may contain
several LANs within it.
URL Uniform Resource Locator. The address that defines the route to a file
on the web or other Internet facility.
UTC Coordinated Universal Time. This is the standard time common to every
place in the world. Formerly and still widely called Greenwich Mean
Time (GMT) and also World Time, UTC nominally reflects the mean
solar time along the Earth's prime meridian.
WAN port On the Webcache, the WAN port is an auto-negotiating
10BASE-T/100BASE-TX RJ-45 port which is used to connect the
Webcache to the network in an inline deployment environment.
WPAD Web Proxy Auto-Discovery. This protocol enables the Web browser on
client machines to automatically find and load proxy configuration
information from a server without user intervention.
