5. Inspecting sessions

Once UPF is up and running, SMF takes over PDU session management, which implies creating, configuring and destroying the associated GTP-U tunnels. No more CLI/NETCONF input necessary for this.

Because CLI/NETCONF are not involved, they cannot report nor affect the state of individual sessions.

Currently, only the following information is available:

• GTP interface counters are incremented when processing traffic through GTP-U tunnels.

• Enabling PFCP service logs puts session-related information into system logs.