H3C S5500-SI Series, Operation Manual

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whether you press Ctrl+B or not, the system does not enter the Boot ROM menu, but enters the
command line configuration interface directly.
In addition, you need to set the Boot ROM access password when you enter the Boot ROM menu for
the first time to protect the Boot ROM against operations of illegal users.
You can use the display startup command to view the status of the Boot ROM access function. For the
detailed description of the display startup command, refer to File System Management in the System
Volume .
Follow the step below to disable Boot ROM access:
To do… Use the command… Remarks
Disable Boot ROM access
undo startup
bootrom-access enable
Required
By default, Boot ROM access is
enabled.
Available in user view.
Configuring a Detection Interval
When detecting an exception on a port, the operation, administration and maintenance (OAM) module
will automatically shut down the port. The device will detect the status of the port when a detection
interval elapses. If the port is still shut down, the device will recover it.
Follow these steps to configure a detection interval:
To do… Use the command… Remarks
Enter system view system-view —
Configure a detection interval shutdown-interval time
Optional
The detection interval is 30
seconds by default.
Clearing the 16-bit Interface Indexes Not Used in the Current System
In practical networks, the network management software requires the device to provide a uniform,
stable 16-bit interface index. That is, a one-to-one relationship should be kept between the interface
name and the interface index in the same device.
For the purpose of the stability of an interface index, the system will save the 16-bit interface index when
a logical interface is removed.
If you repeatedly insert and remove delete a large number of logical interfaces, the interface indexes will
be used up, which will result in interface creation failures. To avoid such a case, you can clear all 16-bit
interface indexes saved but not used in the current system in user view.
After the above operation,
z
For a re-created interface, the new interface index may not be consistent with the original one.
z
For existing interfaces, their interface indexes remain unchanged.
Follow these steps to clear the 16-bit interface indexes not used in the current system: