Selecting a CHF Server
The CHF server selection involves the following steps:
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The smf-service sends packets to rest-ep. The NF library of rest-ep attempts to search a CHF server through NRF discovery. This library receives a CHF server IP address or the list along with the priority as a search result.
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The NF library selects the CHF server based on the priority from the list that is received through NRF discovery. If no CHF server is selected, NF library falls back to the static configuration that exists in the CHF network profile.
After selecting a CHF server or a list, NF library relays the message to the first CHF server according to the priority.