name: SMF
full_form: Session Management Function
context: Figure 6.2-4A: LI architecture diagram for SMF/UPF interception when using SMF sets and LISSF If an SMF belongs to an SMF set, then the TF present in the SMF shall have the ability to modify or stop the interceptions in the POIs present in the UPF irrespective of which TF present in an SMF from that SMF set had previously initiated the interception. A TF in one SMF of an SMF set may initiate the interception at a POI present in the UPF, the TF present in another SMF of the SMF set may make changes to the interception in that POI, and a TF in a different SMF of the SMF set may stop the interception in that POI. In order to allow the TFs present in different SMFs of an SMF set to manage the interceptions at the POI present in an UPF, a new LI function referred to as LI State Storage Function (LISSF) is introduced. The TF that initiates the interception at a POI present in the UPF stores the related necessary information (e.g. correlation information) in case a different TF has to manage
description: The Session Management Function (SMF) is responsible for managing sessions and interceptions within the network, including storing and retrieving relevant information for Lawful Interception (LI). It plays a crucial role in enabling multiple SMFs within an SMF set to manage interceptions at different Points of Interception (POIs) present in the User Plane Function (UPF).
explanation: SMF is classified as a Network Function based on its role in managing sessions, storing and retrieving information for LI, and coordinating with other SMFs within an SMF set to control interceptions at POIs in the UPF, as described in the context from 3GPP TS 33.127.
section_title: 6.2.3.8	LI state transfers in SMF sets
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biotag_Description: O,B-Network Function,I-Network Function,I-Network Function,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,B-Miscellaneous,I-Miscellaneous,O,O,O,O,O,O,O,O,O,O,O,O,B-Network Function,O,O,O,O,O,O,O,O,O,O,O,O,O,B-Network Function,I-Network Function,I-Network Function,O