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 83 lists the show reboot-history command output fields.

Table 83: 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

Related Documentation