H3C Technologies H3C S12500 Series Switches - Manual (Page 87)

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• If a port is automatically shut down due to hardware failure protection, its status displayed with the
display interface command is Protect DOWN. To bring up the port, use the undo shutdown
command on the port.
• If a card is isolated or its software is not allowed to be loaded due to hardware failure fix operations,
you can plug out the card and then plug it in to recover the card status.
• After configuring in-service diagnosis and failure protection, you can use the display
hardware-failure-detection command to check the running information of the feature.
Configuration procedure
To configure in-service hardware failure diagnosis and failure protection:
Step Command Remarks
1. Enter system view. system-view N/A
2. Enable in-service
hardware failure
detection and
configure fix actions
taken in case of
hardware failures.
hardware-failure-detection
{ chip | board |
forwarding } { off | warning
| reset | isolate }
Fix actions for hardware failures:
• off—Takes no action.
• warning—Sends warning messages.
• reset—Resets the failed card.
• isolate—Shuts down the failed port, isolates
the failed card, prohibits the failed card from
loaded, or powers off the failed card to
reduce the impact of the failure to the system.
By default, the fix action taken for all hardware
failures is warning.
3. Enable hardware
failure protection for
aggregation groups.
hardware-failure-protection
aggregation
Optional.
Disabled by default.
This command is effective only when the fix
action is configured as isolate.
4. Enter Ethernet interface
view. interface interface-type
interface-number
N/A
5. Configure hardware
failure protection for
the port.
hardware-failure-protection
auto-down
Optional.
Disabled by default.
This command is effective only when the fix
action is configured as isolate.
Displaying the operating state of fans
Use the display fan command to display the operating state of fans on your switch.
• In standalone mode:
# Display detailed information about all fans on the switch.
<Sysname> display fan verbose
Fan-tray 1:
Software version: 101
Hardware version: Ver.A
CPLD version: 001
Fan number: 12