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    Document the Events Prior to the Failure

    Purpose

    To document events that occurred prior to a Routing Engine failure.

    Action

    To document events prior to a Routing Engine failure:

    1. Write down any events such as an abrupt router shutdown because of a power outage, a software upgrade, a configuration commit, or a system snapshot request.
    2. Write down any recovery procedures attempted. If the Routing Engine reported some errors on the hard drive but appeared to be working fine or a backup Routing Engine is available, it may not be necessary to recover.
    3. Turn on logging to your console to start capturing screen output. This is especially useful if a terminal server is connected to the Routing Engine console port.
    4. While you have screen capturing enabled, boot the Routing Engine and look at the router boot messages.

    Published: 2012-08-20