Node related messages
PFCP node related message allow PFCP nodes to find each other on the network by creating, updating, and deleting associations between PFCP nodes (Sxa, Sxb, Sxc, and N4 interfaces). Node related messages also maintain these associations with heartbeats, even if there is are no active PFCP traffic.
When traffic is active, PFCP node related messages start, modify, and stop sessions between among PFCP nodes.
| Message Type value (Decimal) | Message |
PFCP interfaces |
|---|---|---|
| 0 | Reserved. |
|
| 1 | Heartbeat Request. |
Sxa, Sxb, Sxc, N4 |
| 2 | Heartbeat Response. |
Sxa, Sxb, Sxc, N4 |
| 3 | PFD Management Request. |
Sxb, Sxc, N4 |
| 4 | PFD Management Response. |
Sxb, Sxc, N4 |
| 5 | Association Setup Request. |
Sxa, Sxb, Sxc, N4 |
| 6 | Association Setup Response. |
Sxa, Sxb, Sxc, N4 |
| 7 | Association Update Request. |
Sxa, Sxb, Sxc, N4 |
| 8 | Association Update Response. |
Sxa, Sxb, Sxc, N4 |
| 9 | Association Release Request. |
Sxa, Sxb, Sxc, N4 |
| 10 | Association Release Response. |
Sxa, Sxb, Sxc, N4 |
| 11 | Version Not Supported Response. |
Sxa, Sxb, Sxc, N4 |
| 12 | Node Report Request. |
Sxa, Sxb, Sxc, N4 |
| 13 | Node Report Response. |
Sxa, Sxb, Sxc, N4 |
| 14 | Session Set Deletion Request. |
Sxa, Sxb |
| 15 | Session Set Deletion Response. |
Sxa, Sxb |
| 16 to 49 | For future use. |
|