Cisco Cisco Packet Data Interworking Function (PDIF)
P-GW Changes in Release 17
▀ P-GW Enhancements for 17.0
▄ Release Change Reference, StarOS Release 17
384
New Behavior: Protocol layer will not reject CS Requests with MEI IE having value as all 0.
Customer Impact: Customers having MEI value as all 0 will be allowed to latch onto the network.
CSCuh48881 - TCP support for DNS upon P-CSCF discovery
Feature Changes
TCP Support for DNS upon P-CSCF Discovery
Confirmed that the DNS falls back from UDP to TCP when the DNS answer is more than 40965 bytes and it is received
with the 'truncated flag' set.
with the 'truncated flag' set.
CSCui87830 - Incorrect cause code set for
EGTP_BEARER_RESOURCE_FAILURE_IND msg
Feature Changes
Incorrect Cause Code Set for eGTP_Bearer_Resource_Failure_Indication Message
Previous Behavior: In “Bearer Resource Failure Indication” message, “No Resource Available” cause code was used
for failure scenarios like BRC for default bearer, some PCC failures, etc.
for failure scenarios like BRC for default bearer, some PCC failures, etc.
New Behavior: From 3GPPRelease 10, the cause code “No Resource Available” is removed for “Bearer Resource
Failure Indication” message; therefore, in “Bearer Resource Failure Indication”, “Service Denied” cause code is used
instead of “No Resource Available” message.
Failure Indication” message; therefore, in “Bearer Resource Failure Indication”, “Service Denied” cause code is used
instead of “No Resource Available” message.
CSCul72349, CSCug75135 - PGW LORC mechanism for subscriber billing
Feature Changes
Overcharging Protection
Confirmed that the Overcharging Protection feature is supported at APN and P-GW service. When Overcharging
Protection feature is configured at both P-GW service and APN, configuration at APN takes priority.
Protection feature is configured at both P-GW service and APN, configuration at APN takes priority.
CSCum17169 - Per APN, and QCI, GTP-C v2 responses
Feature Changes
Per APN and QCI GTP-C v2 Responses
This feature collects the eGTP-C cause codes as bulkstats and categorizes them per APN and per QCI. Operator can
derive KPI based on the bulkstat counters per QCI for a particular APN (for example: IMS APN and VoLTE APN).
derive KPI based on the bulkstat counters per QCI for a particular APN (for example: IMS APN and VoLTE APN).