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S-Series Bonding port showing Oper Mode unknown and oper status down

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Information

 
TitleS-Series Bonding port showing Oper Mode unknown and oper status down
Symptoms
  • S-Series Bonding port showing Oper Mode unknown and oper status down
  • Port status will also show oper status down on both sides
Environment
  • S-Series
  • Firmware version 08.41.xx and prior
Cause
Known firmware problem as per release notes:
If software VSB is enabled on either (1) pre-S140 S-Series chassis module assemblies that includes SFP+ ports, or (2) S140/S180 assemblies that include option modules with SFP+ ports, SFP modules present in one or more of the SFP+ ports prior to system initialization may fail to properly link up.
Resolution
Upgrade to firmware version 08.42.01.0008 or later
Additional notes

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