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1. (WO2018197924) METHOD AND SYSTEM TO DETECT VIRTUAL NETWORK FUNCTION (VNF) CONGESTION

Pub. No.:    WO/2018/197924    International Application No.:    PCT/IB2017/052348
Publication Date: Fri Nov 02 00:59:59 CET 2018 International Filing Date: Tue Apr 25 01:59:59 CEST 2017
IPC: H04L 12/715
H04L 12/801
Applicants: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
Inventors: LAKSHMIKANTHA, Ashvin
JOSHI, Vinayak
Title: METHOD AND SYSTEM TO DETECT VIRTUAL NETWORK FUNCTION (VNF) CONGESTION
Abstract:
Methods for detecting a congestion state of a virtual network function (VNF) are disclosed. In one embodiment, the method is implemented in an electronic device, where it is determined that a VNF implemented in a network device is in a congestion state based on packet process performance of the VNF, the packet process performance corresponding to a service level agreement; from the network device, values of a plurality of VNF status parameters corresponding to measurements of the packet process performance are obtained; and a plurality of coefficients is derived to apply to the values of the plurality of the VNF status parameters to arrive at an indication of the congestion state. Then a subsequent congestion state of the VNF is determined based on subsequent values of the plurality of the VNF status parameters and the plurality of coefficients, and a notification is provided.