Citrix ByteMobile T1010, Установка, настройка и администрирование

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Glossary
Glossary-4 T-Series Traffic Director Installation, Configuration and Administration Guide
GSM Global System for Mobile communication. GSM is a second generation (2G) mobile wireless
networking standard defined by ETSI. GSM uses
TDMA technology and operates in the 900 MHz
radio band. See also 3G network and WAN .
GSN GPRS Support Node. GSN refers to the general functions of a group of both GGSNs and SGSNs in
a GPRS network.
GUI Graphical User Interface. A user interface for a computer program or operating system that allows
a user to interact with it by using a mouse or other pointing device to click on icons, buttons, and
menu choices, and to drag and drop objects between windows. GUIs are generally considered to be
easier and more user-friendly than text-based or command-line interfaces.
HA Home Agent. The HA is a router that facilitates mobile computing on CDMA networks by
intercepting packets sent to a mobile node's home address and forwarding them to the registered
care-of address.
heartbeat A repetitive signal passed from one system to another to communicate the state of “health” of the
sending system.
HLR Home Location Register. The HLR is a database in a cellular system that contains all the
subscribers within the providers home service area. When a subscriber reaches a new service area,
the data in the HLR is requested and transferred via SS7 to the VLR in the new area. The HLR is
considered a critical database as it stores permanent data about subscribers, including a subscriber's
service profile, location information, and activity status. See
VLR .
HTML Hypertext Markup Language. The document format used to construct Web pages. HTML
documents contain embedded codes, or tags, that define the formatting and the hypertext links to
other documents on the Web. See
XML .
HTTP HyperText Transfer Protocol. The underlying communications protocol used to establish a
connection to a server on the World Wide Web and to transmit HTML pages to a client browser.
Non-secure Web site addresses begin with the http:// prefix. See
HTTPS .
HTTPS Hypertext Transfer Protocol Secure. The protocol used to access a secure Web server. When
HTTPS is used in the URL instead of HTTP, the message is directed to a secure port number rather
than to the default Web port number of 80. The session is then managed by a security protocol that
encrypts and decrypts user page requests as well as the pages that are returned by the Web server.
HTTPS uses
SSL (Secure Socket Layer) as a sublayer under a browser’s regular HTTP application
layer. Web site addresses that use the HTTPS protocol begin with the https:// prefix.
ICAP Internet Content Adaptation Protocol. A protocol to execute a “remote procedure call” on HTTP
messages. It allows ICAP clients to pass HTTP messages to ICAP servers for a transformation or
alternate processing (“adaptation”).
IETF Internet Engineering Task Force. The body responsible for providing engineering solutions to the
Internet. In the network management area this group is responsible for the development of the
SNMP protocol and the MIBs that enable interoperability between vendors products.