Abstract: Once a potential bottleneck is identified, the system provides a methodology for locating the bottleneck. The methodology involves checking in order each of the application, transport and network layers of a sender and receiver nodes for performance problems. Conditions are defined for each of the layers at the sender and receiver nodes that are indicative of a particular type of bottleneck. When the conditions are met in any one of the layers, the system can be configured to stop the checking process and output a message indicating the presence of a bottleneck in the layer and its location. In addition, the system can be configured to generate and output a remedial action for eliminating the bottleneck. The system can be configured to perform the action automatically or after receiving a confirmation from the user.

Abstract: Virtual resources associated with an execution of a user's applications in a cloud or distributed resource configuration including virtual or physical machines, network services and storage are identified. A source and destination virtual machine, utilized by the user's applications, are determined, and at least one source or destination virtual machine belongs to the identified virtual resources. Measurement software for a virtual machine is downloaded. The measurement software acquires data for connections established in a transport layer for communicating between the source and destination virtual machine. Data acquired from the measurement software is received at a first time, and the data includes measurements of variables for the data communications via the connections. Based upon the measurements, metrics that characterize the data communications at a first time are generated. Measurements made at an additional number of times are also received.

Abstract: Disclosed are methods and apparatus that allow users and organizations to access on-demand and in a personalized way to the performance and optionally flow activity measures of an end to end network of virtual resources. The system is configured to generate a UI that provides a mapping and characterization of the network of virtual resources. In one embodiment, a network topology map can be generated in the UI. In another embodiment, a flow map including nodes and flows can be generated in the UI. The UI is configured to provide users with a number of actions that can be implemented to affect the virtual resources. The actions can be presented in the user via menu options or actionable objects. The user can implement high-level actions provided by the UI. Upon receipt of a high-level action, the system is configured to translate the action into a sequence of low-level device commands needed to implement the action. The system can communicate with the low-level devices in the cloud to implement the commands.