By Martin Dawson, James Winterbottom, Martin Thomson
ISBN-10: 0072263776
ISBN-13: 9780072263770
In trendy substantial international of world trade with clients which are extra nomadic than ever, the necessity for trustworthy, safe, and effective entry applied sciences is quickly expanding. IP position will give you a guided journey of position choice, tackling this new know-how head on and addressing all points of place administration, supply, and conveyance inside IP networks. protecting very important real-world purposes comparable to emergency (911) providers, asset monitoring, name routing, navigation, and employees place in scorching table environments, this ebook provides all of the info you must totally aid this state-of-the-art expertise. * learn the way situation info is produced, transported, and fed on on the web * comprehend the semantics and constructs of the HELD and FLAP protocols * detect the 3 roles of the presence version - presentity, presence carrier, and watcher * discover how the entry position Entity (ALE) is helping be sure place inside certain types of networks * research intimately the site info Server (LIS) together with its differing kinds and interfaces * verify IP position for units attached to all kinds of networks together with WiFi and WiMAX * Get information on position choice and acquisition recommendations for residential broadband networks akin to DSL and cable * know about privateness controls and issues for net position
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Extra resources for IP Location
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2: The GEOPRIV abstract model. The model then describes how this information is published to a Location Server and retrieved by a Location Recipient, who is the consumer of the location information. GEOPRIV Roles The Target is the subject of location information, just as the presentity is the target of presence information. Sometimes the Target is referred to as a Presentity Target. The Target is described in GEOPRIV documents as an abstract construct, which can be either man or machine. In practice the Target is often a person-Alice's Chapter 2: Location, Presence, and Privacy 31 32 Chapter 2: Location, Presence, and Privacy location is more interesting than where her computer is-but the Target could equally be used to identify items for applications like fleet management, asset tracking, or networks of sensors.
1 shows how ALEs from many different types of access networks can report to a single LIS. 1) the LIS hides this complexity by providing the same interface to its clients, irrespective of the type of access network. 1: Different types of ALEs for different access networks. The concept of a centralized LIS is important to the management of the location service. From an operational perspective, management of location data is the single most complex task involved in running a location service. Storing all location data in a central repository reduces the cost of operating the service.