Patent ID: 7616579
Filing Date: 2009-11-10
Classification: H04L

Abstract:
1. A path diagnosis method for a VoIP network, comprising: obtaining information on VoIP calls that are ongoing or that have been completed from the VoIP network using one or more data sources including Call Data Records (CDRs) or active testing, or both; determining that a VoIP call between a source and a destination device on the VoIP network has a problem, based on the obtained information; determining likely call paths between the source and destination devices on the VoIP network, the determining of likely call paths being made based on at least routing table information; querying the VoIP network to obtain network data with respect to all devices that exist between the source and destination devices along the likely call paths; displaying a path diagnostics chart that shows network connectivities between the devices that exist between the source and destination devices along the likely call paths, displaying at least one of: interfaces, links, link speeds, addresses, subnets and VLANs on the path diagnostics chart, analyzing the collected data to detect current and potential issues, and displaying a list of call issues or current and potential network problems that exist for each of the devices on the path diagnostics chart; and receiving information entered by a user with respect to an IP address of the source device and an IP address of the destination device, as well as information entered by the user as to whether a layer 3 path diagnostic chart or a layer 2 and 3 path diagnostic chart is to be displayed, wherein the likely call paths correspond to all possible routes that exist between the source device and the destination device, and wherein, when the layer 2 and 3 path diagnostic chart is to be displayed, intermediate switches that exist between routers along a path between the source and destination devices are also displayed, wherein the routers and not the intermediate switches are displayed when the layer 3 path diagnostic chart is to be displayed.