Abstract: Methods and systems are presented for updating software applications in a processor cluster, in which the cluster is divided into first and second processor groups and the first group is isolated from clients and from the second group with respect to network and cluster communications by application of IP filters. The first group of processors is updated or retrofitted with the new software and brought to a ready-to-run state while the second group is active to serve clients. The first group is then transitioned to an in-service state after isolating the then-active service providing application on second group. Thereafter, the second group of processors is offlined, updated or retrofitted, and transitioned to an in-service state to complete the installation of the new application version across the cluster with reduced or zero downtime and without requiring backward software compatibility.

Abstract: Methods and systems are presented for updating software applications in a processor cluster, in which the cluster is divided into first and second processor groups and the first group is isolated from clients and from the second group with respect to network and cluster communications by application of IP filters. The first group of processors is updated or retrofitted with the new software and brought to a ready-to-run state while the second group is active to serve clients. The first group is then transitioned to an in-service state after isolating the then-active service providing application on second group. Thereafter, the second group of processors is offlined, updated or retrofitted, and transitioned to an in-service state to complete the installation of the new application version across the cluster with reduced or zero downtime and without requiring backward software compatibility.

Abstract: A plurality of local network groups of computers (102) are coupled together by a network (104). Independent processing systems that execute a single operating system are coupled together by a network (220) to form the local network groups. The independent processing systems may have more than one CPU (202). One or more of the independent processing systems may share power, cooling and a housing, thereby forming a common fault processor group (200). An application is written to execute across multiple independent processing systems and common fault processor groups. That is, the application runs in many instances that each run on independent processing systems. The multiple instances of the application provide some measure of high availability by using N+K sparing or the like. The application is for example, call processing or radio control. A processor notification list (304) keeps track of the independent processing systems that cooperatively provide an application.

Abstract: A plurality of local network groups of computers (102) are coupled together by a network (104). Independent processing systems that execute a single operating system are coupled together by a network (220) to form the local network groups. The independent processing systems may have more than one CPU (202). One or more of the independent processing systems may share power, cooling and a housing, thereby forming a common fault processor group (200). An application is written to execute across multiple independent processing systems and common fault processor groups. That is, the application runs in many instances that each run on independent processing systems. The multiple instances of the application provide some measure of high availability by using N+K sparing or the like. The application is for example, call processing or radio control. A processor notification list (304) keeps track of the independent processing systems that cooperatively provide an application.

Abstract: A plurality of local network groups of computers (102) are coupled together by a network (104). Independent processing systems that execute a single operating system are coupled together by a network (220) to form the local network groups. The independent processing systems may have more than one CPU (202). One or more of the independent processing systems may share power, cooling and a housing, thereby forming a common fault processor group (200). An application is written to execute across multiple independent processing systems and common fault processor groups. That is, the application runs in many instances that each run on independent processing systems. The multiple instances of the application provide some measure of high availability by using N+K sparing or the like. The application is for example, call processing or radio control. A processor notification list (304) keeps track of the independent processing systems that cooperatively provide an application.

Abstract: A plurality of local network groups of computers (102) are coupled together by a network (104). Independent processing systems that execute a single operating system are coupled together by a network (220) to form the local network groups. The independent processing systems may have more than one CPU (202). One or more of the independent processing systems may share power, cooling and a housing, thereby forming a common fault processor group (200). An application is written to execute across multiple independent processing systems and common fault processor groups. That is, the application runs in many instances that each run on independent processing systems. The multiple instances of the application provide some measure of high availability by using N+K sparing or the like. The application is for example, call processing or radio control. A processor notification list (304) keeps track of the independent processing systems that cooperatively provide an application.

Abstract: A plurality of local network groups of computers (102) are coupled together by a network (104). Independent processing systems that execute a single operating system are coupled together by a network (220) to form the local network groups. The independent processing systems may have more than one CPU (202). One or more of the independent processing systems may share power, cooling and a housing, thereby forming a common fault processor group (200). An application is written to execute across multiple independent processing systems and common fault processor groups. That is, the application runs in many instances that each run on independent processing systems. The multiple instances of the application provide some measure of high availability by using N+K sparing or the like. The application is for example, call processing or radio control. A processor notification list (304) keeps track of the independent processing systems that cooperatively provide an application.

Abstract: A plurality of local network groups of computers (102) are coupled together by a network (104). Independent processing systems that execute a single operating system are coupled together by a network (220) to form the local network groups. The independent processing systems may have more than one CPU (202). One or more of the independent processing systems may share power, cooling and a housing, thereby forming a common fault processor group (200). An application is written to execute across multiple independent processing systems and common fault processor groups. That is, the application runs in many instances that each run on independent processing systems. The multiple instances of the application provide some measure of high availability by using N+K sparing or the like. The application is for example, call processing or radio control. A processor notification list (304) keeps track of the independent processing systems that cooperatively provide an application.

Abstract: A plurality of local network groups of computers (102) are coupled together by a network (104). Independent processing systems that execute a single operating system are coupled together by a network (220) to form the local network groups. The independent processing systems may have more than one CPU (202). One or more of the independent processing systems may share power, cooling and a housing, thereby forming a common fault processor group (200). An application is written to execute across multiple independent processing systems and common fault processor groups. That is, the application runs in many instances that each run on independent processing systems. The multiple instances of the application provide some measure of high availability by using N+K sparing or the like. The application is for example, call processing or radio control. A processor notification list (304) keeps track of the independent processing systems that cooperatively provide an application.

Abstract: A plurality of local network groups of computers (102) are coupled together by a network (104). Independent processing systems that execute a single operating system are coupled together by a network (220) to form the local network groups. The independent processing systems may have more than one CPU (202). One or more of the independent processing systems may share power, cooling and a housing, thereby forming a common fault processor group (200). An application is written to execute across multiple independent processing systems and common fault processor groups. That is, the application runs in many instances that each run on independent processing systems. The multiple instances of the application provide some measure of high availability by using N+K sparing or the like. The application is for example, call processing or radio control. A processor notification list (304) keeps track of the independent processing systems that cooperatively provide an application.

Abstract: A system and method for performing dynamic load balancing during system operation between a pair of APs (AP pair) serving at least one cell in common. A first RCS instance runs as an active RCS instance on one member of the AP pair and a second RCS instance runs as a standby RCS instance on the other member of the AP pair. The first RCS instance is redesignated as a standby RCS instance for the cell and the second RCS instance is redesignated as an active RCS instance for the cell. Active message processing is then transferred from the first RCS instance to the second RCS instance during network operation and without service interruption to the cell.