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Knowledge Article: ID X0030003 " Teamed NIC switched back to the primary NIC

Description

The Redundant Network Adapter Failback event occurs when the redundancy state of a system network interface card (NIC) changes. A change in the redundancy state requires a teamed configuration.

Causes

The Redundant Network Adapter Switchback event occurs when the primary network interface card (NIC) is restored in a teamed NIC configuration.

Implications

The primary network interface card (NIC) is restored, which means that the system network access should be fine. However, you should investigate the switchback and the previous switchover event.

Resolutions

  1. If you are a qualified person and have the authority, follow the suggested actions:
    • Gather as much information about the NIC switch as possible
    • Consult the Hardware Maintenance manual and Troubleshooting Guide.
    • Make sure the correct device drivers are installed (the latest level).
    • Check the Device Manager and verify that the network adapters are being seen by the operating system.
    • Verify the presence of the physical connection by ensuring that the link LED illuminates (the LED should be green, either solid or blinking).

  2. Monitor the system for future events, keep track of all alerts, events, and logs.

Additional information

To find additional troubleshooting help, visit the "IBM Support & downloads" Web site, select "System x" for "Browse products for support" panel. At "Support & downloads quick start" page, select your product for "Choose your products", and "Troubleshooting" for "Choose your page", then select "View your page" for "See your results". To narrow the results, search with keywords that are related to this article, such as "fail", "Chassis", etc. in the "Search support" field at the right panel.

To download the latest firmware, visit the same "IBM System x support search" Web site, select "Download" for "Task", and then select "Product Family", "Machine type" and "Operating system" of interest (from the pull-down lists). You can refine the search by selecting the category of the download of your interest from the "Refine results" list. For BladeCenter x86 blade servers, visit the IBM BladeCenter support search Web site and follow similar steps.