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Unable to change a 10Gig port back to factory-default ISL capability

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TitleUnable to change a 10Gig port back to factory-default ISL capability
Symptoms
  • Setting back a TenGigabitEthernet interface to factory-default gives an error message:
sw0(conf-if-te-x/x/x)# fabric isl enable
%%Error: Operation not permitted on this interface
Environment
  • VDX
  • NOS
  • TenGigabitEthernet
Cause
This is working as per design. Once the port configuration has been changed to "no fabric isl enable", you can not revert it back to the default configuration using the "fabric isl enable" command.
Resolution
Factory default the device 
 
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