Supported Interfaces
This section describes the interfaces supported between the SMF and other network functions in the 5GC.
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N4—Reference point between the SMF and UPF.
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N7—Reference point between the SMF and PCF.
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N10—Reference point between the UDM and SMF.
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N11—Reference point between the AMF and SMF.
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N40—Reference point between the SMF and CHF.
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S5—Interface between the PGW-C and S-GW.
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S2b—Interface between the PGW-C and ePDG.