5G • Core Network
Namf Interface
AMF Service-Based Interface
RESTful service interface exposed by AMF providing communication, context transfer, and event exposure services.
Technical Explanation
Namf provides HTTP/2 JSON APIs: Namf_Communication (inter-AMF context transfer and N1/N2 message routing), Namf_EventExposure (notifying NFs of UE reachability, location, and registration events), Namf_MT (mobile-terminated paging coordination), and Namf_Location.
Key Functions
- Exposes AMF microservices to peer 5GC Network Functions via HTTP/2
- Enables inter-AMF UE context transfer during mobility handovers
- Provides real-time event notifications for UE reachability and location
Specifications
3GPP TS 29.518
Interfaces
NamfSBI
Related 5G Concepts
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