Connectivity Troubleshooting

This section provides guidance for troubleshooting connectivity issues in SD-Core deployments.

Key Metrics to Monitor

4G Networks

When troubleshooting 4G connectivity issues, monitor the following:

  • eNB Status: Check if the eNodeB is properly connected and registered

  • Subscriber Information: Verify IP address allocation and IMSI registration

  • Bearer Status: Ensure default and dedicated bearers are established correctly

  • S1-AP Connection: Verify the control plane connection between eNB and MME

  • S1-U Connection: Check the user plane connection between eNB and SGW/PGW

5G Networks

When troubleshooting 5G connectivity issues, monitor the following:

  • gNB Status: Check if the gNodeB is properly connected and registered

  • Subscriber Information: Verify IP address allocation and IMSI/SUPI registration

  • PDU Session Status: Ensure PDU sessions are established correctly

  • NG-AP Connection: Verify the control plane connection between gNB and AMF

  • N3 Connection: Check the user plane connection between gNB and UPF

Common Troubleshooting Steps

  1. Verify Pod Status: Ensure all SD-Core pods are running without errors

  2. Check Logs: Review logs from relevant network functions (AMF, SMF, UPF, etc.)

  3. Validate Configuration: Confirm subscriber, device group, and network slice configurations

  4. Network Connectivity: Test connectivity between components

  5. Resource Availability: Check CPU, memory, and network resources