Abstract: A monitoring system for virtual application environments comprising: at least one physical machine executing a first operating system; at least one virtual machine operating on at least one of the at least one physical machines, each such virtual machine operating a second operating system; and an agent program operating on each of the at least one physical machines, where, each agent program is operable to obtain a first set of metrics from the first operating system, such first set of metrics including metrics in respect of each virtual machine as viewed by the first operating system, and operable to connect to the second operating system of each virtual machine hosted on the physical machine the agent program operates on and obtain a second set of metrics in respect of the virtual machine from the second operating system, the agent program further operable to communicate the first and second sets of metrics to a manager program.

Abstract: An improved root-cause approach to problem diagnosis in data networks in the form of a method comprising the steps of: associating each metric in a at least one set of metrics with at least one component and/or network device; obtaining values for each such metric from a monitoring system; determining whether each such metric is indicative of a problem within the data network; and ranking and correlating indicative problems to determine whether a problem may be symptomatic of another problem based on an interconnection and/or interdependency between a physical machine and a virtual machine, between components or between components and network devices.

Abstract: An improved root-cause approach to problem diagnosis in data networks in the form of a method comprising the steps of: associating each metric in a at least one set of metrics with at least one component and/or network device; obtaining values for each such metric from a monitoring system; determining whether each such metric is indicative of a problem within the data network; and ranking and correlating indicative problems to determine whether a problem may be symptomatic of another problem based on an interconnection and/or interdependency between a physical machine and a virtual machine, between components or between components and network devices.

Abstract: A monitoring system for virtual application environments comprising: at least one physical machine executing a first operating system; at least one virtual machine operating on at least one of the at least one physical machines, each such virtual machine operating a second operating system; and an agent program operating on each of the at least one physical machines, where, each agent program is operable to obtain a first set of metrics from the first operating system, such first set of metrics including metrics in respect of each virtual machine as viewed by the first operating system, and operable to connect to the second operating system of each virtual machine hosted on the physical machine the agent program operates on and obtain a second set of metrics in respect of the virtual machine from the second operating system, the agent program further operable to communicate the first and second sets of metrics to a manager program.

Abstract: A method is disclosed for providing real-time monitoring of components of a data network to a plurality of users. A manager gathers data regarding said components and analyses said data to determine the status of each component. Each user is associated with a communications address and a subscription period, and is allocated user permissions to access said data and the status of the components. If the subscription period associated with a user has not expired, the user is provided with real-time access to said data and the status of the components in accordance with said user's permissions, and is notified using the communications address associated with said user of any alarm states that occur in components that the user has permission to access. The manager analyses the data without regard to said user permissions.

Abstract: A method of monitoring a data network includes storing topology information that identifies interconnections and interdependencies among network components, as well as links between websites and the components. Each component is also mapped to relevant protocol layers of a hierarchy of protocol layers that are ranked according to dependencies among the protocol layers in implementing functions. Network test measurements are also mapped to the appropriate protocol layers. Based upon the topology information and the various forms of mapping information, a user is able to navigate through a web-based user interface to determine root causes of network problems. Alternatively, an automated correlation process may be used to prioritize alerts of network problems, so that the root cause can be more easily ascertained.

Abstract: A method of monitoring a data network includes storing topology information that identifies interconnections and interdependencies among network components, as well as links between websites and the components. Each component is also mapped to relevant protocol layers of a hierarchy of protocol layers that are ranked according to dependencies among the protocol layers in implementing functions. Network test measurements are also mapped to the appropriate protocol layers. Based upon the topology information and the various forms of mapping information, a user is able to navigate through a web-based user interface to determine root causes of network problems. Alternatively, an automated correlation process may be used to prioritize alerts of network problems, so that the root cause can be more easily ascertained.