From abf1d43e5e3eac3a530e121d5e9787807cb5b324 Mon Sep 17 00:00:00 2001 From: Neels Janosch Hofmeyr Date: Mon, 21 Nov 2022 12:36:52 +0100 Subject: add doc/charts/pfcp_msgs*.msc (I used these while implementing libosmo-pfcp and osmo-upf, but never submitted them.) Change-Id: I8d2343224d02d728e2eee2090ee2d4c6bec79e78 --- doc/charts/pfcp_msgs_gtp.msc | 91 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 91 insertions(+) create mode 100644 doc/charts/pfcp_msgs_gtp.msc (limited to 'doc/charts/pfcp_msgs_gtp.msc') diff --git a/doc/charts/pfcp_msgs_gtp.msc b/doc/charts/pfcp_msgs_gtp.msc new file mode 100644 index 0000000..f59412c --- /dev/null +++ b/doc/charts/pfcp_msgs_gtp.msc @@ -0,0 +1,91 @@ +msc { + hscale="1"; + sgsn[label="SGSN\n123.44.0.9"],sgwc[label="SGW-C\n123.44.0.5"],sgwu[label="SGW-U\n123.44.0.6"],pgwc[label="PGW-C\n123.44.0.7"],pgwu[label="PGW-U\n123.44.0.8"]; + + sgsn <=> sgwc [label="S4-C GTPv2-C"]; + sgwc <=> sgwu [label="Sxa PFCP"]; + sgsn <=> sgwu [label="S4-U GTPv1-U"]; + sgwc <=> pgwc [label="S5-C GTPv2-C"]; + pgwc <=> pgwu [label="Sxb PFCP"]; + sgwu <=> pgwu [label="S5-U GTPv1-U"]; + + ...; + + sgsn => sgwc [label="GTP Create Session Request"]; + sgsn note sgwc [label="F-TEID S11 = 123.44.0.9,0x004\nF-TEID S5 = 123.44.0.7,0x000\nPDN addr alloc = IPv4 192.168.100.2"]; + + |||; + |||; + + sgwc => sgwu [label="PFCP Session Establishment Request"]; + sgwc note sgwu [label="2x Create PDR\nF-TEID = CHOOSE\nFAR = NOCP,BUFF"]; + + |||; + |||; + + sgwc <= sgwu [label="PFCP Session Establishment Response"]; + sgwc note sgwu [label="Created PDR F-TEID 123.44.0.6,0x015\nCreated PDR F-TEID 123.44.0.6,0x016"]; + + |||; + |||; + + sgwc => pgwc [label="GTP Create Session Request"]; + sgwc note pgwc [label="F-TEID S5 = 123.44.0.5,0x00b\nPDN addr alloc = IPv4 192.168.100.2\nBearer Ctx: F-TEID S5 = 123.44.0.6,0x015"]; + + |||; + |||; + + pgwc => pgwu [label="PFCP Session Establishment Request"]; + pgwc note pgwu [label="Create PDR 1:\nPDI: src-iface Core, UE IPv4 192.168.100.2\nFAR-1: FORW, dst-iface Access,\nhdr creation: GTP-U 123.44.0.6,0x015\n\nCreate PDR 2:\nPDI: src-iface Access, F-TEID = CHOOSE id:05\nhdr removal: GTP-U\nFAR-2: FORW, dst-iface Core\n\nCreate PDR 3:\nPDI: src-iface CP-function, F-TEID = CHOOSE\nhdr removal: GTP-U\nFAR-1\n\nCreate PDR 4:\nPDI: src-iface Access, F-TEID = CHOOSE id:05, SDF Filter\nhdr removal: GTP-U\nFAR-3: FORW, dst-iface CP-Function,\nhdr creation: GTP-U 123.44.0.7,0x00b"]; + + |||; + + pgwc <= pgwu [label="PFCP Session Establishment Response"]; + pgwc note pgwu [label="Created PDR-1\nCreated PDR-2: F-TEID = 123.44.0.8,0x01e\nCreated PDR-3: F-TEID = 123.44.0.8,0x01f\nCreated PDR-4: F-TEID = 123.44.0.8,0x01e"]; + + |||; + |||; + + sgwc <= pgwc [label="GTP Create Session Response"]; + sgwc note pgwc [label="TEID: 0x00b\nF-TEID: 123.44.0.7,0x00b\nPDN Addr: 192.168.100.2\nBearer Ctx: F-TEID S5 123.44.0.8,0x01e"]; + + |||; + |||; + + sgwc => sgwu [label="PFCP Session Modification Request"]; + sgwc note sgwu [label="Update FAR-2: FORW, dst-iface Core,\nhdr creation GTP-U 123.44.0.8,0x01e"]; + + |||; + + sgwc <= sgwu [label="PFCP Session Modification Response"]; + + |||; + |||; + + sgsn <= sgwc [label="GTP Create Session Response"]; + sgsn note sgwc [label="TEID: 0x004\nF-TEID S11/S4: 123.44.0.5,0x007\nF-TEID S5/S8: 123.44.0.7,0x00b\nPDN Addr: 192.168.100.2\nBearer Ctx:\nF-TEID S1-U: 123.44.0.6,0x016\nF-TEID S5/S8: 123.44.0.8,0x01e"]; + + |||; + |||; + + sgsn => sgwc [label="GTP Modify Bearer Request"]; + sgsn note sgwc [label="TEID: 0x007\nBearer Ctx:\nF-TEID S1-U: 192.168.104.167,0x32adb2ad"]; + + |||; + |||; + + sgwc => sgwu [label="PFCP Session Modification Request"]; + sgwc note sgwu [label="Update FAR-1: FORW, dst-iface Access,\nhdr creation: GTP-U 192.168.104.167,0x32adb2ad"]; + + |||; + |||; + + + sgwc <= sgwu [label="PFCP Session Modification Response"]; + + |||; + + sgsn <= sgwc [label="GTP Modify Bearer Response"]; + sgsn note sgwc [label="TEID: 0x004\nBearer Ctx:\nF-TEID S1-U: 192.168.104.167,0x32adb2ad"]; + +} -- cgit v1.2.3