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+# UPF_Tests.ttcn
+
+* external interfaces
+    * PFCP
+    * VTY
+    * CTRL
+    * StatsD
+
+{% dot upf_tests.svg
+digraph G {
+  graph [label="UPF_Tests", labelloc=t, fontsize=30];
+  rankdir=LR;
+  UPF [label="IUT\nosmo-upf",shape="box"];
+  ATS [label="ATS\nUPF_Tests.ttcn"];
+
+  UPF <- ATS [label="PFCP"];
+  UPF <- ATS [label="CTRL"];
+  UPF <- ATS [label="VTY"];
+  UPF -> ATS [label="StatsD"];
+}
+%}