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"Change the stack port setting to V400 alternative-configuration" error seen in logs

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Title"Change the stack port setting to V400 alternative-configuration" error seen in logs
Symptoms
In the switch logs, the below message is seen:
 
<Warn:HAL.Port.Warning> Stack port <port number> is running at 106G. This cable type is not supported at that speed. Change the stack port setting to "V400 alternative-configuration".

 
Environment
  • Summit
  • EXOS 22.7+/ 30.2+
  • X690/X870/X590
Cause
By default, EXOS sets the stacking port speed to 106G, which is not supported on 100GbE optics.
Resolution
Please enter the below command to fix the port speed to 100G:
 
configure stacking-support stack-ports all selection native V400 alternative-configuration



 
Additional notes
Stacking using 100GbE optics on the X690/X870/X590 is only supported on EXOS versions 22.7+ and 30.2+

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