摘要:
A mechanism is disclosed for enabling new task types to be added to a management server without changing the source code of the management server. To add a new task type, a descriptor file is provided. This descriptor file specifies all of the particulars of the new task type. Any mechanisms referred to in the descriptor file are also provided. At startup time, the management server processes the descriptor file and forms associations between the various aspects of the task type with the mechanisms that are responsible for implementing those various aspects. At runtime, these associations are used to manage the definition and execution of tasks of that task type. By doing so, the management server enables new task types to be added, and enables task instances of the new task types to be defined and executed, without changing the source code of the management server.
摘要:
A mechanism is disclosed for enabling new task types to be added to a management server without changing the source code of the management server. To add a new task type, a descriptor file is provided. This descriptor file specifies all of the particulars of the new task type. Any mechanisms referred to in the descriptor file are also provided. At startup time, the management server processes the descriptor file and forms associations between the various aspects of the task type with the mechanisms that are responsible for implementing those various aspects. At runtime, these associations are used to manage the definition and execution of tasks of that task type. By doing so, the management server enables new task types to be added, and enables task instances of the new task types to be defined and executed, without changing the source code of the management server.
摘要:
Elements on a network are selectively unmanaged by a network manager. An element is not managed when it is placed in a Pending state. Traps and events from the element in the Pending state are handled but not processed. The element can be automatically placed in the Pending state if a trap or event has been generated by that element.
摘要:
Apparatus, methods and computer program products are disclosed for interfacing a client based, multi-threaded API that is written in a first programming language (such as JAVA) with a server based, single-thread API that is written in a second programming language (such as C or C++). The invention uses an object factory to generate a server object for each client. Programmed-method invocations performed on logical objects at the client are communicated to the server object. The server object processes the programmed-method invocation to perform the requested service such as providing network management information services.
摘要:
Techniques for providing a client program with remote access to information management services of a computer network are disclosed. An application programming interface can be provided to enable the client to remotely access the information management services. By using the application program interface the client can remotely invoke appropriate methods on the server to access the information management services. The application programming interface can be implemented as a thin-class. In addition, the communication between the server and the client programs is transparent to the applications that utilize the application programming interface.
摘要:
A network management system allows a user to generate a customized event request for network accessible devices. In response to a user request the system displays a list of devices, and a list of predefined event requests. In response to user customization commands the system generates customized event requests by associating various ones of the displayed devices with various ones of the displayed predefined event requests. At most one predefined event request is associated with each device. The network management system periodically sends the customized event requests to the devices with which they have been associated, and receives response messages from those devices. A display or report may be generated showing the status of the responding devices, using the information in the received response messages. A predefined event request may be formed by storing one or more variable/threshold pairs in a predefined event request data structure. The network management system allows an administrator to define or change the system by associating devices with predefined event requests, eliminating the need to write or modify computer programs.
摘要:
The present invention is a method, apparatus and computer program product for discovering the nodes and other network information of a computer network (the target network) from a device or node that is not part of the target network (the discovery node) when the discovery node uses a different network protocol than the target network. The invention involves identifying one or more additional nodes (the target nodes) that have access to network information about the target network and with whom the discovery node can communicate. This target network information can include the identification of nodes which are present on the network, the topology of the network, the services provided by the network or by the nodes on the network, status information as the network changes such as information about network and node events or alarms, etc. The discovery node may also have stored information on the types of nodes, services, and other information which may be found on a network using the network protocol of the target network. The discovery node can use the target nodes to receive target network information in various ways, including requesting information from a target node, invoking target network functionality at a target node or target network node to identify target network information, and accessing target network information previously stored at a target node or target network node. After receiving target network information, the discovery node models it using software objects that are created by the discovery node. These software objects are discovery node representations of target network nodes and objects. The discovery node makes the created objects available as representations of the network information from the target network, and can maintain the accuracy of the represented target network information over time.
摘要:
In a computer network system, a mechanism is described for enabling system/network management system to operate in a network address translation environment. Embodiments of the invention allow users to define and specify logical identifiers for agents connecting to the system management network and wishing to communicate with a server layer in the network. The logical identifiers enable the server layer to resolve the addresses of connecting agents to the IP addresses stored and recognized by the server layer.
摘要:
Disclosed herein are methods and apparatus for discovering devices on a network. Active devices can be discovered in ARP tables from routers on the network. Pings can then be sent to the active devices for verification, or pings can be sent to devices at other addresses on the network. Devices can also be discovered by sending a batch of pings to addresses on the network and monitoring responses from those addresses over an interval. After the interval elapses, another batch of pings can be sent. The devices can be discovered by a host on the network or by a network manager. The network manager can add the discovered devices to a network topology database.