What is the maximum MTU on a Mellanox `mlx4_en` network interface?

Solution Verified - Updated -

Issue

  • What is the maximum MTU on a Mellanox mlx4_en network interface?
  • Can I set Jumbo Frames with MTU9000 on mlx4 NIC?

Environment

  • Red Hat Enterprise Linux 7
  • Mellanox ConnectX-3 NIC in Ethernet Mode using mlx4_en driver

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