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    Monitoring the History of System and Module Resets

    Purpose

    Display the history of system and module resets. You can display the current reboot.hty file or a saved reboot history file. If you have a redundant router, it can be convenient to copy the redundant module’s reboot.hty file to another filename for viewing with the show reboot-history command.

    Action

    To display the history of system and module resets:

    host1#show reboot-history
    *** Entry  1 ***
    time of reset: TUE APR 10 2001 20:25:59 UTC
    run state: unknown
    image type: diagnostics
    location: slot (7)
    build date: 0x3abf4337 MON MAR 26 2001 13:25:11 UTC
    reset type: user reboot, task "scheduler", reason "not specified"
    *** Entry  2 ***
    time of reset: TUE APR 10 2001 20:25:44 UTC
    run state: unknown
    image type: diagnostics
    location: slot (8)
    build date: 0x3abf5d5f MON MAR 26 2001 15:16:47 UTC
    reset type: user reboot, task "scheduler", reason "not specified"
    *** Entry  3 ***
    time of reset: TUE APR 10 2001 20:25:03 UTC
    run state: unknown
    image type: diagnostics
    location: slot (4)
    build date: 0x3abf3ee0 MON MAR 26 2001 13:06:40 UTC
    reset type: user reboot, task "scheduler", reason "not specified" 

    Meaning

    Table 1 lists the show reboot-history command output fields.

    Table 1: show reboot-history Output Fields

    Field Name

    Field Description

    Entry

    Number of entry in the reboot history; numbers range from lowest (most recent reset) to highest (oldest reset)

    time of reset

    Timestamp for reset

    run state

    State of system at reset

    image type

    Type of image running when the record is written:

    • boot—Module is running the boot file
    • diagnostics—Module is running the diagnostics file
    • application—Module is running the software file

    location

    Slot that reset; location is offset by two slots at slot 7 and above (the SRP module in slot 6 shows location as slot 7, the SRP module in slot 7 shows location as slot 9, and slots 8-13 show location as 10-15, respectively)

    build date

    Build date of software version

    reset type

    Cause of reset

     

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    Published: 2014-08-12