In the above screenshot of the SDN Statistics screen, the Name, Version and Credentials are blank for the row with Cluster ID. If this is the case, it means that the LoadMaster is not communicating correctly with the SDN Controller. To try to resolve this, follow the steps below:

  1. Ping the SDN Controller from the LoadMaster (System Configuration > Logging Options > System Log Files > Debug Options > Ping Host).

  1. Recheck the IP address, port and credentials in the SDN Controller settings (System Configuration > Miscellaneous Options > SDN Configuration).
  2. Restart the SDN daemon (System Configuration > Logging Options > SDN Log Files > Debug Options > Restart SDNstats service).
  3. Enable SDN statistic debug logging (System Configuration > Logging Options > SDN Log Files > Debug Options > Enable SDNstats Debug Log). Then, view the SDN debug logs (System Configuration > Logging Options > SDN Log Files > SDNstats Traces). The logs will show what the LoadMaster passed to the SDN Controller.