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P2 – Interface between PCEI and Mobile Network. Provides the ability to accept requests from MNO for PCEI service and request MNO to provide 4G/5G access to PCEI customers. E.g. Network Slicing, LBO.
P2' - Interface between PCEI and the MNO Core Functions such as UPF, SMF. In case of a UPF the P2' interface can be used to configure the parameters responsible for interfacing the UPF and the virtual/contextual configuration structures within the UPF with the PCC/PCE and 3PE resources by way of the L1-L3 Interconnection layer. The P2' interface implies the availability of standard or well-specified UPF provisioning models provided by MNOs.
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P7 – Interface between PCEI and Public Cloud Edge Functions (may be maybe part of P8). Provides ability to access APIs to deploy Public Cloud Edge functions/Instances (may be done through P8)
P8 - Interface between PCEI and Public Cloud Core Functions (may include control over Public Cloud Edge functions). Provides the ability to access Public Cloud APIs including ability to deploy Public Cloud edge functions.
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