I-SMF (Intermediate SMF) in 5G Network

I-SMF stand for (Intermediate SMF). It plays a crucial role in managing sessions, when a UE (User Equipment) moves between different SMF serving areas.

When a UE moves outside its current SMF serving area, the AMF may decide to insert an I-SMF to act as an anchor point between the UE and the original SMF.

This maintains the user's IP address and other session-related information. This helps to maintain session continuity, which leads to better user experience.

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