Sx Path Failure on UPF

This section describes the sequence of operation for Sx path failure on UPF.

  1. The NodeMgr initiates the subscriber clear command.

  2. The NodeMgr sends UnRegisterUpf to IPAM.

  3. IPAM releases any dynamic IP address ranges and moves it to free range list.

  4. IPAM retains any static IP address ranges for the UPF. Sx path failure does not impact static IP address mappings.