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.
    To disable the LAN over USB interface from the CMM web interface, complete the following steps.
    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.
    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.
Parent topic: Accessing the IMM2 using the LAN over USB interface