{% dot hnb_tests.svg digraph G { graph [label="HNB_Tests", labelloc=t, fontsize=30]; rankdir=LR; { rank=same; ATS; HNB; }; HNB [label="IUT\nosmo-bsc",shape="box"]; ATS [label="ATS\nHNB_Tests.ttcn"];
HNB <- ATS [label="Uu (or some intermediate lower layer)"]; HNB -> ATS [label="Iuh"]; HNB -> ATS [label="RTP"]; HNB -> ATS [label="GTP-U"]; HNB <- ATS [label="CTRL"]; HNB <- ATS [label="VTY"]; HNB -> ATS [label="StatsD"]; } %}