Event Failure Logs

cnSGWc provides the following support:

• Consistent event failure logs for PDN Setup, Idle or Active, PDN Modify, and PDN Disconnect procedures across pods

• Configurable logs at pod type

• Inclusion of request and response details in a single-line format

The significant volume of unnecessary system-generated logs resulted in increased memory consumption, performance impact, and ineffective management and utilization of logs. To prevent these issues, the consistent error log message format across various pods is introduced for reduced memory consumption, minimized number of log generations by the system, and efficient troubleshooting. The single-line log format display enhances the readability.

Default Setting: Not Applicable

Notification for UPF-initiated PFCP Association Release

This feature enables cnSGWc to receive notification on UPF-initiated PFCP Association Release Session procedure. This notification indicates to clear the sessions and association simultaneously in UPF and cnSGWc.

If the cnSGWc is not notified, the call remains connected until UPF receives the next Session Modify Request from cnSGWc. This leads to loss of subscriber usage reports. Here, the Enhanced PFCP Association Release feature (EPFAR) improves the signalling efficiency and effective handling of usage reports by cnSGWc.

Default Setting: Disabled – Configuration Required to Enable

UCS C220 M7 Server Qualification

In this release, cnSGWc is functionally qualified on the Cisco UCS C220 M7 server.

The Cisco UCS C220 M7 Rack Server is a versatile general-purpose infrastructure and application server. This high-density, 1RU, 2-socket rack server delivers industry-leading performance and efficiency for a wide range of workloads, including virtualization and bare-metal applications.

Validation of Uplink Packets for IP Source Violation

This feature enables cnSGW to detect packets with invalid source IP addresses. The packet detection is done by validating the source IP address against the UE IP address received in the uplink traffic endpoint. cnSGW provides configuration options to either drop or ignore the invalid packets based on the IP Source Violation IE.

This feature also stops the immediate TEID reuse for another subscriber, which avoids the wrong subscriber being tapped and reported by LI agencies.

This feature enhances the security and privacy of the subscribers by preventing the leakage of their data to unauthorized parties. This feature further reduces the risk of legal and regulatory issues for the service provider by complying with the lawful interception requirements.

This feature introduces the new CLI command ip source-violation [ ignore | discard ] in the DNN profile.

Default Setting: Disabled – Configuration Required to Enable