Delete Default Bearer Procedure Failure Handling
This section covers the PGW-initiated default bearer deletion procedure failure scenarios.
The following table summarizes cnSGW-C behavior during different stages of call processing for various failure types:
Scenarios |
SGW-service Behavior |
Signaling |
Output |
---|---|---|---|
Delete Bearer Request advance validation failure |
Send failure/No signaling over Sx/PGW |
Negative - S5 Delete Bearer Response |
Session/PDN is not deleted |
Sx Session Modify failure |
Skip failure and continue |
Send S11 Delete Bearer Request towards MME S5 Delete Bearer Response (Cause = Accepted) Sx Delete Request (to Delete traffic endpoint) depends upon Sx Session Modify Response |
Session/PDN is deleted |
S11 Delete Bearer Request failure |
Skip failure and continue |
Send Delete Bearer Response (Cause = Accepted) to PGW Sx Delete Request (to Delete traffic endpoint) |
Session/PDN is deleted |
Sx Session Delete Request failure |
Skip failure and continue |
Send Delete Bearer Response (Cause = Accepted) to PGW |
Session/PDN is deleted |