Create Session Request Call Flow
This section describes the Create Session Request call flow.

Step |
Description |
---|---|
1 |
MME sends Create Session Request with C-TEID as zero to GTPC-EP ingress. |
2 |
GTPC-EP ingress forwards the Create Session Request to SGW-SVC. Following actions takes place:
|
3, 5 |
The SGW service pod sends the Delete Session Request for PDN 1 - N to PFCP-EP. |
4, 6 |
PFCP-EP forwards Delete Session Request for PDN 1 - N to UPF. |
7, 9 |
PFCP-EP receives Delete Session Response for PDN 1 to N from UPF. |
8, 10 |
PFCP-EP forwards Delete Session Response for PDN 1 - N to SGW service pod. |
11 |
SGW service pod sends Resource Management Request to RMMgr with request ID-type as Request REL. |
12 |
SGW service pod receives Resource Management Response from RMMgr with Req ID-type as REQ REL. The SGW service pod performs following:
|
Note | You can ignore unhandled events for the Deletion Response from UPF. |