Forum Discussion

tltl4866's avatar
tltl4866
Icon for Altostratus rankAltostratus
Jul 06, 2022

ConfigSync not Syncing

Hello,

We are currently running into config sync issue on our F5-Big IP machines. The issue we are running into is that we are unable to sync both machines despite both machines being able to ping each other.

We configured high availability by following this article. While the devices show up when we add the devices in device trust, the other device is offline on device list. Both devices are running on the same software version.

The device trust members also shows the peer device (see picture below)

We have tried multiple troubleshooting steps on askF5 and DevCentral, but none solved our issue. Any advice/pointers is greatly appreciated.

 

application delivery
  • Juergen_Mang's avatar
    Juergen_Mang
    Icon for MVP rankMVP
    Jul 07, 2022

    Check the ConfigSync and Failover Network configuration of your devices and ensure that the SelfIPs for ConfigSync and Failover Network are configured to Port Lockdown "Allow default".

    • tltl4866's avatar
      tltl4866
      Icon for Altostratus rankAltostratus
      Jul 08, 2022

      Hello,

      I have set port lockdowns for self IPs as "Allow Default" but it's still not able to connect and sync.

       

      • AubreyKingF5's avatar
        AubreyKingF5
        Icon for Moderator rankModerator
        Jul 08, 2022

        Definitely want to check the anycast / multicast settings in the sync settings. If you can post a pic of that screen..

  • AubreyKingF5's avatar
    AubreyKingF5
    Icon for Moderator rankModerator
    Jul 07, 2022

    Looks like you peered correctly. Just make sure you have those SelfIPs configured, as per Juergen_Mang, and also you may want to check the config sync settings to see if your Multicast / Anycast settings are correct for your switching environment. Default ports on both.. and pick one, not both. 🙂

  • Bhupendra's avatar
    Bhupendra
    Icon for Altocumulus rankAltocumulus
    Jul 09, 2022

    If you have checked all option but still devices are not syncing eachother. Try to reset the Trust and rebuid the HA config. Hope that works for you.

    • tltl4866's avatar
      tltl4866
      Icon for Altostratus rankAltostratus
      Jul 11, 2022

      Hello!

      I haven't had a chance to try it out yet as I was not onsite at all during these past few days. I will be onsite this week and will update accordingly.

      • Leslie_Hubertus's avatar
        Leslie_Hubertus
        Ret. Employee
        Jul 11, 2022

        I hope you were able to enjoy your time off. Looking forward to your update! 🙂