Methods and devices for monitoring a data path

摘要

The present invention relates to methods and devices for monitoring a data path extending from an originating node to a terminating node in a network. In a first aspect of the present invention, the method comprises the step of submitting, to the originating node, a request to monitor at least one network status parameter associated with a particular data flow transported on the data path. Further, the method comprises the step of submitting, to all nodes in the data path, a data flow identifier indicating the particular data flow being one out of a plurality of data flows that can be transported on the data path. Moreover, the method comprises the step of receiving, from at least one of the nodes in the data path, a response message comprising the requested at least one network status parameter.

主权项

1. A method for monitoring a data path extending from an originating node to a terminating node in a network, the method comprising:
receiving, at the originating node from a network controller separated from the data path, a request to monitor at least one network status parameter associated with a particular data flow transported on the data path, and a data flow identifier indicating the particular data flow being one out of a plurality of data flows that can be transported on the data path; determining from the received request whether a response message comprising the requested at least one network status parameter should be reported to the network controller and if so, transmitting the response message to the network controller; generating network monitoring data based on the received data flow identifier, wherein the network monitoring data being an operation, administration and maintenance (OAM) packet data unit (PDU), such that the generated network monitoring data is transported on a same data path as the particular data flow, and including the data flow identifier in the network monitoring data, the generated network monitoring data comprising instructions regarding monitoring of the requested at least one network status parameter; and submitting, to a first subsequent node in the data path, the generated network monitoring data, and wherein in case the first subsequent node is not the terminating node, submitting, from the first subsequent node to a second subsequent node in the data path, the generated network monitoring data.