Abstract: The detection of network communication problems in networks that have multiple end nodes, and multiple transit nodes in between. One or more of the end nodes monitors one or more flows, creates associated flow information including performance information for each flow, and then reports the flow information. A system then estimates, for each of multiple flows within the network, a likely path that network traffic takes through that network. The system might then use performance information for each of the reported flows to identify at least one candidate problem network entity that is common amongst the estimated paths of the at least the subset of the plurality of flows.

Abstract: The detection of network communication problems in networks that have multiple end nodes, and multiple transit nodes in between. One or more of the end nodes monitors one or more flows, creates associated flow information including performance information for each flow, and then reports the flow information. A system then estimates, for each of multiple flows within the network, a likely path that network traffic takes through that network. The system might then use performance information for each of the reported flows to identify at least one candidate problem network entity that is common amongst the estimated paths of the at least the subset of the plurality of flows.

Abstract: The detection of network communication problems in networks that have multiple end nodes, and multiple transit nodes in between. One or more of the end nodes monitors one or more flows, creates associated flow information including performance information for each flow, and then reports the flow information. A system then estimates, for each of multiple flows within the network, a likely path that network traffic takes through that network. The system might then use performance information for each of the reported flows to identify at least one candidate problem network entity that is common amongst the estimated paths of the at least the subset of the plurality of flows.

Abstract: The detection of network communication problems in networks that have multiple end nodes, and multiple transit nodes in between. One or more of the end nodes monitors one or more flows, creates associated flow information including performance information for each flow, and then reports the flow information. A system then estimates, for each of multiple flows within the network, a likely path that network traffic takes through that network. The system might then use performance information for each of the reported flows to identify at least one candidate problem network entity that is common amongst the estimated paths of the at least the subset of the plurality of flows.

Abstract: The detection of network communication problems in networks that have multiple end nodes, and multiple transit nodes in between. One or more of the end nodes monitors one or more flows, creates associated flow information including performance information for each flow, and then reports the flow information. A system then estimates, for each of multiple flows within the network, a likely path that network traffic takes through that network. The system might then use performance information for each of the reported flows to identify at least one candidate problem network entity that is common amongst the estimated paths of the at least the subset of the plurality of flows.

Abstract: A portable handheld computing device includes a network interface and a control unit. The network interface is configured to interface the portable handheld computing device to a network cable. The control unit is configured to establish a link over the network cable. The control unit is also configured to receive, at a first endpoint of the network cable, at least identifying information via a neighbor discovery protocol. The identifying information includes identification of a device to which a second endpoint of the network cable is connected. The control unit is also configured to decode the identifying information.

Abstract: The detection of network communication problems in networks that have multiple end nodes, and multiple transit nodes in between. One or more of the end nodes monitors one or more flows, creates associated flow information including performance information for each flow, and then reports the flow information. A system then estimates, for each of multiple flows within the network, a likely path that network traffic takes through that network. The system might then use performance information for each of the reported flows to identify at least one candidate problem network entity that is common amongst the estimated paths of the at least the subset of the plurality of flows.