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iiILS Architecture

ILS has three interfaces for gaining access to its contents: a standard HTTP interface for HTML Web pages, a standards-based LDAP interface for ILS LDAP clients, and a User Location Protocol (ULP) for legacy support of clients using NetMeeting version 1.0.

A service provider can use the HTTP interface to design a dynamic member directory that users gain access to through their Web browser. The ILS LDAP interface will provide an Internet-standard-based access protocol that allows any third-party Internet client application that uses the LDAP client (such as Microsoft NetMeeting) to access the ILS servers for dynamic directory information, such as a user’s current IP address, which facilitates point-to-point Internet communication sessions.

The ULP interface is furnished only for backward compatibility with NetMeeting 1.0 and will be phased out in the future. Dynamic directory clients are strongly encouraged to use the LDAP interface.

ILS runs as a set of services on Microsoft Internet Information Server (IIS). ILS stores its directory information in a RAM-based dynamic database.i

The following diagram illustrates the ILS design.

Undisplayed Graphici

At a very high level, the following components are involved in these processes:

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