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Do the Summit X440-G2, X450-G2, and X460-G2 switches support half duplex operation?

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TitleDo the Summit X440-G2, X450-G2, and X460-G2 switches support half duplex operation?
Question
Do the Summit X440-G2, X450-G2, and X460-G2 switches support half duplex operation?
Environment
  • EXOS All
  • Summit X460-G2
  • Summit X450-G2
  • Summit X440-G2
Answer
  • Half duplex is not supported on X460-G2 and X450-G2 switches due to a hardware limitation.
  • Half duplex is supported on X440-G2 on different ports.
  • Half duplex is supported on the X460-G2-24ht-10GE4, and X460-G2-24hp-10GE4.
Additional notes
Though half duplex is not supported on the x460-G2, the link may come up at half duplex on the combo ports of the X460-G2 switch. While the switch fabric chip does not support half-duplex, the external PHY present in the combo ports does support half-duplex operation. This behavior is a software bug as this is an invalid configuration. CR xos0061486 has been created to disable half-duplex on the external PHYs for the combo ports.

 

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