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Resolving conflicts with the IMM2 LAN over USB interface

Use any of the following actions to resolve LAN over USB conflicts with network configurations and applications.

Use one of the following methods to resolve LAN over USB conflicts.
Note
For conflicts with Open MPI, configure the application so that it does not attempt to use this interface.
  • Take down the interface (run ifdown under Linux).
  • Remove the device driver (run rmmod under Linux).
  • Disable the LAN over USB interface from the CMM web interface.
    Note
    You cannot update the firmware for a compute node while the LAN over USB interface is disabled. Before updating the firmware, you must re-enable the interface. After updating the firmware, you can disable the interface again.
    To disable the LAN over USB interface from the CMM web interface, complete the following steps.
    1. Log in to the CMM web interface.
    2. From the CMM web interface homepage click Chassis Management > Compute Nodes.
    3. Click the compute node ID.
    4. Click the General tab.
    5. Uncheck Enable Ethernet Over USB to disable the LAN over USB interface.