Abstract: The impact of device configuration changes on operational issues and policy compliance in a computer network can be discerned from a visual data presentation that jointly shows representations of changes, issues, and policy compliance in a common view for a group of network devices. Configuration information is collected from devices in the computer network and processed to determine whether a change has occurred in a configuration of any of the devices, whether any operational issues exist for each of the devices, and whether any of the devices are not in compliance with any applicable operational policies. A display device displays the visual data presentation to allow an operator to see trends and relationships between device configuration changes and operational issues and incidents of policy non-compliance. The visual data presentation can be depicted as a graphical timeline view, a network topology view, or a table view of the information.

Abstract: A path diagnosis method and system for a VoIP network includes obtaining information on VoIP calls from the VoIP network using either Call Data Records (CDRs) or active testing, or both. A VoIP call that has a problem is determined between a source and a destination device on the VoIP network, based on the obtained information. Likely call paths between the source and destination devices on the VoIP network are determined. The VoIP network is queried to obtain network data with respect to all devices that exist between the source and destination devices along the likely call paths. A path diagnostics chart is displayed that shows the devices that exist between the source and destination devices along the likely call paths, along with any call issues that exist for each of the devices.