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digraph G {
rankdir=LR
labelloc=t; label="OsmoBSC MSC-pool conn (re)direction"
subgraph cluster_msc_usable {
style=dotted; label="MSC usable\n(successful BSSMAP RESET)"
allowed [label="MSC\nallow-attach"]
notallowed [label="MSC\nno allow-attach\n(MSC should respond\nwith null-NRI)"]
}
subgraph cluster_msc_unusable {
style=dotted; label="MSC unusable\n(no link)"
allowed_unusable [label="MSC\nallow-attach"]
notallowed_unusable [label="MSC\nno allow-attach"]
}
TMSI_unknown_NRI [label="TMSI, NRI unknown"]
TMSI_null_NRI [label="TMSI, null-NRI"]
TMSI_known_NRI [label="TMSI, NRI known"]
IMSI -> allowed
TMSI_unknown_NRI -> allowed
TMSI_null_NRI -> allowed
TMSI_known_NRI -> allowed
TMSI_known_NRI -> notallowed
never [style=dotted]
never -> {allowed_unusable, notallowed_unusable} [style=dotted]
}
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