61 lines
2.4 KiB
Plaintext
61 lines
2.4 KiB
Plaintext
msc {
|
|
hscale="1";
|
|
upf[label="User Plane function"],cpf[label="Control Plane function"];
|
|
|
|
cpf rbox cpf [label="Look up UPF,\npick any one of the available\nIP addrs for the UPF"];
|
|
|
|
...;
|
|
upf abox cpf [label="not yet associated"];
|
|
upf rbox cpf [label="reject any session related msgs"];
|
|
...;
|
|
|
|
upf <<= cpf [label="PFCP Association Setup Request\nCP function Node Id, features"];
|
|
upf =>> cpf [label="PFCP Association Setup Response\nUP function Node Id, features"];
|
|
upf abox cpf [label="associated"];
|
|
upf rbox cpf [label="start Heartbeat checking"];
|
|
...;
|
|
upf <<= cpf [label="Heartbeat Request"];
|
|
upf =>> cpf [label="Heartbeat Response"];
|
|
...;
|
|
upf =>> cpf [label="Heartbeat Request"];
|
|
upf <<= cpf [label="Heartbeat Response"];
|
|
...;
|
|
|
|
upf <<= cpf [label="Session Establishment Request\nCP Node-Id\nCP F-SEID\n1+ Packet Detection Rule(s)\n1+ Forward Action Rule(s)"];
|
|
upf =>> cpf [label="Session Establishment Response"];
|
|
|
|
upf <<= cpf [label="Session Modification Request"];
|
|
upf =>> cpf [label="Session Modification Response"];
|
|
|
|
upf <<= cpf [label="Session Deletion Request"];
|
|
upf =>> cpf [label="Session Deletion Response"];
|
|
|
|
...;
|
|
upf rbox cpf [label="F-SEID: accept any other IP addrs than peer's Node Id"];
|
|
...;
|
|
|
|
--- [label="Graceful release initiated by CP"];
|
|
|
|
upf <<= cpf [label="Association Update Request\nwith PFCP Association Release Preparation Start = 1"];
|
|
upf =>> cpf [label="Association Update Response"];
|
|
upf =>> cpf [label="Session Report Request\nto report non-zero usage reports,\nat least one message per PFCP Session"];
|
|
upf <<= cpf [label="Association Release Request"];
|
|
upf =>> cpf [label="Association Release Response"];
|
|
|
|
--- [label="Graceful release initiated by UP"];
|
|
|
|
upf =>> cpf [label="Association Update Request\nwith PFCP Association Release Preparation = 1"];
|
|
cpf abox cpf [label="refrain from establishing sessions"];
|
|
upf <<= cpf [label="Association Update Response"];
|
|
upf <<= cpf [label="Session Deletion Request(s)\nto collect usage reports\nper session"];
|
|
upf =>> cpf [label="Session Deletion Response(s)"];
|
|
cpf rbox cpf [label="wait Graceful Release Period"];
|
|
upf <<= cpf [label="Association Release Request"];
|
|
upf =>> cpf [label="Association Release Response"];
|
|
|
|
--- [label="Release (immediate)"];
|
|
|
|
upf <<= cpf [label="Association Release Request"];
|
|
upf =>> cpf [label="Association Release Response"];
|
|
}
|