Abstract: Systems for the deploying an extensible instant messaging service includes a plurality of instant messaging processors and a centralized table accessible to the plurality of instant messaging processors. The centralized table includes information for communicating with users of the instant messaging service. The information on the users remains in the centralized table for as long as the users are connected to the instant messaging service. Other systems and methods are also provided.

Abstract: Network resource management systems are provided. A representative network resource management system includes a server operable to provide a remote terminal coupled to the network with a class of service marker specific to a user of the remote terminal, and a roster list comprising a plurality of resources present on the network. The server is also operable to receive a routing request from the remote terminal, the routing request comprising a request for at least one resource from the roster list and the class of service marker. The server being operable to check the class of service marker of the remote terminal before permitting access to the resource by the user. Methods and other systems for network resource management are also provided.

Abstract: Network resource management systems are provided. A representative network update manager includes an updater coupled to a persistent database and to an administrative application residing on an application server and a memory operable to store a plurality of delayed updates. The network update manager is preferably operable to receive at least one update from the administrative application and subsequently update the persistent database. Methods and other systems for network resource management are also provided.

Abstract: A user-controlled information disclosure process for web user identification. In this process, a user information database, a BrowserID Client applet, and a BrowserID Website database are configured at a user terminal. The user information database contains a plurality of information records about a user's identification information and access levels for the respective information records. The BrowserID Website database contains the names of web sites and access levels for the respective web sites. In response to a request for user information from a web site, the BrowserID Client applet checks the existing access level in the BrowserID Website database for the web site (or negotiates a new level), and if appropriate, retrieves the access key granted by the web site to gain access to a controlled portion of a website.

Abstract: An interface between a bus-oriented computer and a packet-based serial link. A block of data is transferred from the serial link to a buffer, whereupon the bus is issued a request for service. When the bus has read the buffer, the serial link carries an acknowledgement of the reading. If the buffer has not been read, no further block of data is transferred into it. The bus also writes a block of data into another buffer from which it is sent over the serial link if the previous such block has been acknowledged.

Abstract: A switching system or local area network is non-blocking, transmit-secure and employs a star type topology. A back plane uses n(n-1) bus lines to interconnect n ports. Each port can transmit on any one of n-1 bus lines depending on the identity of the destination port. Likewise, each port can receive from any of n-1 bus lines, depending on the identity of the transmitting port. Signalling as well as data flow on the same bus lines. Each of the ports includes a dedicated microprocessor along with an arbitrator to resolve contention. The ports further have transmit and receive multiplexers coupled between the back plane and an associated work station or information source/sink.