Nomadix Universal subscriber gateway User Manual page 248

U S G ™
NIVERSAL UBSCRIBER ATEWAY
VxWorks ®
A real-time operating system, manufactured and sold by Wind River Systems of California, USA.
VxWorks program development requires a host machine running Unix or Windows.
W3C
(World Wide Web Consortium) An international consortium of companies involved with the Internet and
the Web. The organization's purpose is to develop open standards so that the Web evolves in a single
direction rather than being splintered among competing factions. The W3C is the chief standards body for
HTTP and HTML. See also, HTML and HTTP.
WAN
(Wide Area Network) Take two local area networks, hook them together, and you've got a WAN. Wide area
networks can be made up of interconnected smaller networks spread throughout a building, a state, a
country, or the entire globe.
Winsock
(Windows Socket) An Application Programming Interface (API) for developing Windows programs that
can communicate with other machines via the TCP/IP protocol.
WMI
(Web Management Interface) The browser-based system administrators interface for the USG.
XML
(eXtensible Markup Language) A specification developed by the W3C. XML is a pared down version of
SGML, designed especially for Web documents. It enables designers to create their own customized tags to
provide functionality not available with HTML. For example, XML supports links that point to multiple
documents, as opposed to HTML links, which can reference just one destination each. For the Nomadix
Universal Subscriber Gateway, XML is used by the USG's subscriber management module for port
location and user administration. Enabling the XML interface allows the USG to accept and process XML
commands from an external source. XML commands are appended to a URL in the form of an encoded
query string. The USG parses the query string, executes the commands specified by the string, and returns
data to the system that initiated the command request. See also, HTML, Tag, and W3C.
244 Glossary of Terms