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1. (WO2017037193) METHODS AND NETWORK NODES FOR SCALABLE TOP-OF-CHAIN SELECTION IN MOBILE SERVICE CHAINING

Pub. No.:    WO/2017/037193    International Application No.:    PCT/EP2016/070647
Publication Date: Fri Mar 10 00:59:59 CET 2017 International Filing Date: Fri Sep 02 01:59:59 CEST 2016
IPC: H04L 12/813
H04L 12/851
H04L 12/833
Applicants: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
Inventors: ROELAND, Dinand
FU, Zhang
Title: METHODS AND NETWORK NODES FOR SCALABLE TOP-OF-CHAIN SELECTION IN MOBILE SERVICE CHAINING
Abstract:
A method performed in a first network node includes the first network node receiving a downlink data packet intended for a user equipment (UE). The method further includes, in response to receiving the downlink data packet, the first network node retrieving, from a second network node, a list of a plurality of top of service function chain (SFC) nodes, each top of SFC node being a first node in a SFC that is in communication with the first network node. The method further includes, the first network node selecting at least one top of SFC node from the plurality of top of SFC nodes in accordance with predetermined criteria. The method further includes the first network node marking the downlink data packet such that the marked downlink data packet is forwarded to the selected top of SFC node.