Patent ID: 8824429
Filing Date: 2014-09-02
Classification: H04L,H04W

Abstract:
1. A method comprising: obtaining, at a network analysis device, trace records from a trace device, each trace record identifying a message detected by the trace device and including an identification of a source node, a destination node, and a time at which the message was detected at the trace device, the trace device being at an unknown location relative to the source and destination nodes, determining, by the network analysis device, a plurality of round-trip times associated with pairs of messages to and from a node of a pair of source-destination nodes, based on the time at which each message was detected by the trace device, characterizing, by the network analysis device, the plurality of round-trip times to provide one or more statistics related to the round-trip times to and from the node, and determining, by the network analysis device, a location of the node relative to the trace device based on the one or more statistics; wherein: the pairs of messages to and from the node correspond to messages from and to each of one or more other nodes that each form a node pair with the node, the one or more statistics correspond to each node pair, and determining the location includes