| 摘要 |
Embodiments of the present invention relate to methods and network nodes in e.g. a LTE network for detecting congestion. In the method, a packet is received from a user equipment via a base station, the packet is analyzed to detect information of the packet and if the packet comprises a marker indicating congestion and if said marker is detected, ingress IP number of the tunnel used for said packet is extracted, and information of the marked packet and the extracted ingress IP number of the tunnel used for said packet are sent to a performance monitoring node such that identity information of the base station that has inserted the marker into the packet can be extracted at the performance monitoring node.
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