Patent ID: 9077633
Filing Date: 2015-07-07
Classification: H04L

Abstract:
1. A method for enabling active measurement for evaluating network performance in a network comprising a logical tree structure representing at least one service, said service provided through a set of links from an initial node in an upper level of the tree structure to a node in a lower level of said tree structure, each node of the tree structure comprising a measurement process configured to perform active measurement of link characteristics, wherein each of said nodes is configured to perform the method comprising: Receiving a request message requiring measurement results of link characteristics related to a service; Forwarding the received request message to at least one node of the next lower level related to the service, if any such lower level exists relative to the node; Receiving an aggregation message comprising requested aggregated measurement results of the link characteristics from one or more nodes in the next lower level of the tree structure, if any such lower level exists relative to the node; Establishing an aggregation message by aggregating own measurement result of the link characteristics achieved by the performed measurement process and, if any, received requested aggregated measurement results of the link characteristics; Sending the established aggregation message to the node in the next upper level, or as specified in the request message; and Storing a copy of the sent aggregated measurement results in a database.