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Floating IPs can't be reached randomly

This document (7018904) is provided subject to the disclaimer at the end of this document.

Environment


SUSE OpenStack Cloud 6

Situation

 The typical main effect is that floating IPs can't be reached randomly from some clients, but can be reached from different clients.
 Cloud nodes throw failures while executing command "ping 127.0.0.1" and the error message "net_ratelimit: 1277 callbacks suppressed" is shown in ther kernel ring buffer while executing "dmesg".

Resolution

Workaround is unloading the openvswitch kernel module using the script: https://github.com/SUSE-Cloud/automation/blob/production/scripts/recoverovs
 which at least keeps the cloud node and all VMs alive and gets networking back to work.

Disclaimer

This Support Knowledgebase provides a valuable tool for SUSE customers and parties interested in our products and solutions to acquire information, ideas and learn from one another. Materials are provided for informational, personal or non-commercial use within your organization and are presented "AS IS" WITHOUT WARRANTY OF ANY KIND.

  • Document ID:7018904
  • Creation Date: 11-May-2017
  • Modified Date:03-Mar-2020
    • SUSE Open Stack Cloud

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