Abstract: Network address (e.g. IP address) allocation under first and second protocols (e.g. RADIUS and DHCP) is achieved using a directory service. A common network address pool is maintained under the control of a directory service. The directory service allocates network addresses in response to requests. The directory service also maintains a record of network address allocation to users, which can be achieved by storing a network address allocated to a user at the user's entry in the directory. Thus, for example, IP address allocation under RADIUS and DHCP can be unified using a common address pool and mappings between IP addresses and the user/hosts information in an ISO/CCITT X.500 based directory service using LDAP.

Abstract: A computer-implemented directory access mechanism provides a directory service operable to access a network directory under a predetermined protocol by responding to an access request under the protocol for information available in a predetermined environment external to the directory. The directory service then uses the access method for the environment to access the information available in the environment. In this manner, data in the given environment can be accessed by a directory service operable under the given protocol by configuring an attribute access method and using this method to retrieve the information. The protocol can be the Lightweight Directory Access Protocol. The information to be accessed could typically be an attribute of an entry in the directory. An access control list (for example the Directory Access Control Domain) can contain not only control access rights for directory objects, but also the access methods for attributes of the directory objects.

Abstract: The apparatus comprises a processor (15) which has specialized high-speed link terminals intended for the network communication with another processor linked to a rewritable application program memory (26) and includes means for updating this memory. The apparatus includes a connector (30) linked to said high-speed terminals and enabling the communication to the exterior.

Abstract: This invention provides a dosage form and a method of administering an anti-tumor composition comprising tegafur, uracil, and folinic acid to potentiate the coadministration of irinotecan.

Abstract: For bypassing a computer system coupled between first and second network links, the computer system executes a software which provides a predetermined control signal on a control line. The control line is polled by a bypass device that will cause the computer system to be bypassed when said control signal is not present on the control line. The control signal may be in the form of periodic pulses and a bypassing is caused when a pulse is not received on the control line within a predetermined period of time.

Abstract: A computer-implemented directory access mechanism provides a directory service operable to access a network directory under a predetermined protocol by responding to an access request under the protocol for information available in a predetermined environment external to the directory. The directory service then uses the access method for the environment to access the information available in the environment. In this manner, data in the given environment can be accessed by a directory service operable under the given protocol by configuring an attribute access method and using this method to retrieve the information. The protocol can be the Lightweight Directory Access Protocol. The information to be accessed could typically be an attribute of an entry in the directory. An access control list (for example the Directory Access Control Domain) can contain not only control access rights for directory objects, but also the access methods for attributes of the directory objects.

Abstract: A message dispatch system is provided for a multi-computer server having a number of server computers connected via respective server network links. The message dispatch system, which is connectable to an external telecommunications network, includes a message dispatcher configured to receive external client requests for the multi-computer server from the external telecommunications network and to dispatch the client requests to selected server computers via the server network links. The message dispatcher is configured to determine a server to which an external client request is to be dispatched in response to parameters representative of message traffic volume on the server network links. Load balancing is performed based on parameters representative of the server network link loading, rather than, or possibly in addition to measurements on processor loading. Suitable network loading parameters can be derived by monitoring packets passing from and/or to the individual server computers.

Abstract: A method and mechanism for controlling network bandwidth by dynamically determing a current window size for a destination buffer. A first window size is determined for the destination buffer at a first time. Then, a current window size is determined a second time as a function of the first window size, a desired bandwidth value, and a bandwidth used between the first time and the second time. A desired bandwidth for a particular connection is achieved by an adaptive or delta-based approach rather than by use of round trip time (RTT) computations. Bandwidth control can be achieved by a software or a hardware bandwidth control mechanism. Possible applications of the bandwidth control is in a server or a quality of service unit.

Abstract: A network element maintains a local representation of a variable from a network directory service without needing to poll the variable in the directory service. The network element is arranged to accept replication messages from the directory service for updating the local record. By using a replication mechanism, it is possible to maintain the current value of a variable without repeated polling of the variable in the directory service.

Abstract: A Quality of Service (QoS) method and mechanism enable allocation of a QoS to a flow on a network in a dynamic environment in response to detection of a new instance of an entity associated with a flow on the network. A binding is determined between the flow and the entity which is based on at least one parameter of the flow. A QoS definition is maintained in a directory service of the network. The QoS definition includes at least one configuration rule for the flow. A QoS definition for the entity is accessed, which QoS definition binds the flow with a QoS. Configuration rules of the QoS definition are applied to the flow to configure the flow. The detection of a new instance of an entity could be in response to a flow event or in response to a directory event resulting, for example, from a login event.