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What does the log message "PHY firmware update required. This process may take up to 15 minutes." represent?

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TitleWhat does the log message "PHY firmware update required. This process may take up to 15 minutes." represent?
Question
  • What does the log message "PHY firmware update required. This process may take up to 15 minutes." represent?

    02/08/2018 06:44:38.22 <Crit:Kern.Alert> Warning: Loss of power during this process may render the ports unusable.
    02/08/2018 06:44:38.22 <Crit:Kern.Alert>
    02/08/2018 06:44:38.22 <Crit:Kern.Alert> PHY firmware update required.  This process may take up to 15 minutes.

    02/08/2018 06:44:37.89 <Noti:EPM.system_stable> System is stable. Change to warm reset mode
    02/08/2018 06:44:36.41 <Info:EPM.wdg_enable> Watchdog enabled

Environment
  • Summit X670V
  • EXOS 16.2.4.5-patch1-3
  • EXOS 16.2.4.5-patch1-5
Answer
  • The error messages could be seen after reboot while bring up the ports due to below condition.
  • When current PHY(physical layer) firmware is not latest as per newly detected firmware (Always bundled with EXOS code), in that scenario switch install the new firmware version to the switch before bring up the port and this process can take 15 minutes. In case power loss during this process and new PHY is not installed properly it may misbehaves or stop working. Once the new PHY firmware updated to the switch port will come up properly.
  • Switch will automatically update the latest firmware version to the switch, so we no need to do anything with these logs. These logs are just for information to the user.
  • For more information, please contact GTAC for assistance. 
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