core_overview.dot

Change-Id: I7d2977dbc44996bded28442258cedbd8fc9fdbfc

doc/charts/Makefile.am

@@ -3,6 +3,7 @@ msc: \
 	$(NULL)
 
 dot: \
+	core_overview.png \
 	$(NULL)
 
 $(builddir)/%.png: $(srcdir)/%.msc

doc/charts/core_overview.dot

@@ -0,0 +1,74 @@
+
+digraph G {
+  rankdir = LR;
+
+  MS [label="MS\n(2G phone)"]
+  UE [label="UE\n(3G phone)"]
+  PBX [label="PBX\nAsterisk, FreeSwitch,\nKamailio, Yate, ..."]
+
+  subgraph cluster_bts {
+    BTS [rank="min"]
+    PCU [rank="min"]
+  }
+
+  subgraph cluster_msc_mgw {
+    style=dotted
+    MSC
+    MGW1 [label="MGW"]
+    MSC -> MGW1 [label="MGCP",constraint=false]
+  }
+
+  subgraph cluster_bsc_mgw {
+    style=dotted
+    BSC
+    MGW2 [label="MGW"]
+    BSC -> MGW2 [label="MGCP",constraint=false]
+  }
+
+  subgraph cluster_hnbgw_mgw_upf {
+    style=dotted
+    MGW3 [label="MGW"]
+    UPF
+    HNBGW
+    HNBGW -> MGW3 [label="MGCP",constraint=false]
+    HNBGW -> UPF [label="PFCP",constraint=false]
+  }
+
+  hNodeB [shape="box",label="hNodeB\n(3G femto cell)"]
+
+  MS -> BTS [label="Um",style="bold"]
+  MS -> PCU [style="dashed,bold"]
+
+  BTS -> BSC [label="Abis/IP",style=bold]
+  STP [label="STP\n(SCCP/M3UA)"]
+  BSC -> STP -> MSC [label="A",style=bold]
+  MSC -> HLR [label="\nGSUP",style=bold]
+  SGSN -> HLR [label="GSUP",style="dashed,bold"]
+  UE -> hNodeB [label="Uu",style=bold]
+  UE -> hNodeB [style="dashed,bold"]
+  hNodeB -> HNBGW [label="Iuh",style="bold"]
+  STP2 [label="STP\n(SCCP/M3UA)"]
+  HNBGW -> STP2 -> SGSN [label="IuPS",style="dashed,bold"]
+  HNBGW -> STP2 -> MSC [label="IuCS",style="bold"]
+  PCU -> SGSN [label="Gb",style="dashed,bold"]
+  SGSN -> GGSN [label="GTP-C",style="dashed,bold"]
+  SGSN -> GGSN [label="GTP-U(2G)",style="dashed"]
+  hNodeB -> UPF -> GGSN [label="GTP-U(3G)",style="dashed"]
+  GGSN -> internet [label="tun",style="dashed"]
+
+  BTS -> MGW2 -> MGW1 [label="RTP"]
+  MGW1 -> MGW1 [label="RTP"]
+  MGW2 -> MGW2 [label="RTP (LCLS)"]
+  hNodeB -> MGW3 [label="IuUP/RTP",constraint=false]
+  MGW3 -> MGW1 [label="IuUP/RTP"]
+
+  MSC -> SIPConnector [label="MNCC socket",style=bold]
+
+  SIPConnector -> PBX [label="SIP",style=bold]
+  MGW1 -> PBX [label="RTP"]
+
+  A, B, C, D [style="invisible"]
+  A -> B [label="data (PS)",style="dashed"]
+  C -> D [label="voice/SMS/USSD (CS)"]
+
+}