CBR Multi-PDN Call Flow
This section describes the CBR Multi-PDN call flow.
|
Step |
Description |
|---|---|
|
1 |
The Initial Attach process is completed with the three established PDNs. The PGW sends a Create Bearer Request for PDN1 to the S5-GTP-EP. |
|
2 |
The S5-GTP-EP sends the Create Bearer Request for PDN1 to the cnSGW. |
|
3 |
The cnSGW sends a Sx Modify Request for PDN1 to the PFCP-EP. |
|
4 |
The PGW sends a Create Bearer Request for PDN2 to the S5-GTP-EP. |
|
5 |
The S5-GTP-EP sends the Create Bearer Request PDN2 to the cnSGW. |
|
6 |
The cnSGW sends a Sx Modify Request to PFCP-EP for PDN2. |
|
7 |
The PFCP-EP sends the Sx Modify Response for PDN1 to the cnSGW. |
|
8 |
The cnSGW sends the Create Bearer Request for PDN1 to the S11-GTP-EP. |
|
9 |
The S11-GTP-EP sends the Create Bearer Request for PDN1 to the MME. |
|
10 |
The PGW sends the Create Bearer Request (PDN3) to the S5-GTP-EP. |
|
11 |
The S5-GTP-EP sends the Create Bearer Request (PDN3) to the cnSGW. |
|
12 |
The cnSGW sends the Sx Modify Request (PDN3) to the PFCP-EP. |
|
13 |
The PFCP-EP sends the Sx Modify Response for PDN2 to the cnSGW. |
|
14 |
The cnSGW sends the Create Bearer Request for PDN2 to the S11-GTP-EP. |
|
15 |
The S11-GTP-EP sends the Create Bearer Request for PDN1 to the MME. |
|
16 |
The MME sends the Create Bearer Response for PDN1 to the S11-GTP-EP. |
|
17 |
The S11-GTP-EP sends the Create Bearer Response for PDN1 to the cnSGW. |
|
18 |
The cnSGW sends the Sx Modify Request for PDN1 to the PFCP-EP. |
|
19 |
The PFCP-EP sends the Sx Modify Response for PDN3 to the cnSGW. |
|
20 |
The cnSGW sends the Create Bearer Request for PDN3 to the S11-GTPC-EP. |
|
21 |
The S11-GTPC-EP sends the Create Bearer Request for PDN3 to the MME. |
|
22 |
The PFCP-EP sends the Sx Modify Response2 for PDN1 to the cnSGW. |
|
23 |
The cnSGW sends the Create Bearer Response for PDN1 to the S5-GTP-EP. |
|
24 |
The S5-GTP-EP sends the Create Bearer Response for PDN1 to the PGW. |
|
25 |
The MME sends the Create Bearer Response for PDN2 to the S11-GTPC-EP. |
|
26 |
The S11-GTPC-EP sends the Create Bearer Response for PDN1 to the cnSGW. |
|
27 |
The cnSGW sends the Sx Modify Request to the PFCP-EP for PDN2. |
|
28 |
The PFCP-EP sends the Sx Modify Response for PDN2 to the cnSGW. |
|
29 |
The cnSGW sends the Create Bearer Response for PDN2 to the S5-GTP-EP. |
|
30 |
The S5-GTP-EP sends the Create Bearer Response for PDN2 to the PGW. |
|
31 |
The MME sends the Create Bearer Response for PDN3 to the S11-GTPC-EP. |
|
32 |
The S11-GTPC-EP sends the Create Bearer Response for PDN3 to the cnSGW. |
|
33 |
The cnSGW sends the Sx Modify Request for PDN2 to the PFCP-EP. |
|
34 |
The PFCP-EP sends the Sx Modify Response for PDN3 to the cnSGW. |
|
35 |
The cnSGW sends the Create Bearer Response for PDN3 to the S5-GTP-EP. |
|
36 |
The S5-GTP-EP sends the Create Bearer Response for PDN3 to the PGW. |