HP 12500 Configuration Manual page 200

If the member interface is not the last member in up state in the group, the system shuts down the
•
interface.
If the member interface is the last member in up state in the group, the system does not shut down
•
the interface.
To enable hardware failure protection for aggregation groups:
Step
1. Enter system view.
2. Set the action to be taken in
response to failures on the
forwarding plane to isolate.
3. Enter Ethernet interface view.
4. Disable hardware failure
protection for the interface.
5. Exit to system view.
6. Enable hardware failure
protection for aggregation
groups.
The hardware-failure-protection aggregation and hardware-failure-protection auto-down commands
do not take effect on an interface in the following cases:
Loopback testing is enabled (using the loopback { external | internal } command).
•
The interface is forcibly brought up (using the port up-mode command).
•
The interface is a physical IRF port. For more information about physical IRF ports, see IRF
•
Configuration Guide.
An interface shut down for hardware failure protection is in Protect DOWN state. You can use the display
interface command to view the status. To restore the interface to UP state, execute the undo shutdown
command.
For a card that is isolated or forbidden to load software for hardware failure protection, you can remove
it and then reinstall it to restore it to operating state.
To view hardware
hardware-failure-detection command.
Command
system-view
hardware-failure-detection
forwarding isolate
interface interface-type
interface-number
undo hardware-failure-protection
auto-down
quit
hardware-failure-protection
aggregation
failure detection and
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Remarks
N/A
By default, the system takes the
action of warning (sending traps)
in response to forwarding-plane
failures.
N/A
By default, hardware failure
protection is enabled.
Configure this command on every
member interface in the
aggregation group. If you do not
configure this command on a
member device, the system shuts
down the interface when it detects
a hardware failure on the
interface, whether or not the
interface is the last member in up
state in the group.
N/A
By default, hardware failure
protection is disabled for
aggregation groups.
protection information, use the display