1-5In addition, you need to set the Boot ROM access password when you enter the Boot ROM menu forthe 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 thedetailed description of the display startup command, refer to File System Management in the SystemVolume.Follow the step below to disable Boot ROM access:To do… Use the command… RemarksDisable Boot ROM access undo startupbootrom-access enableRequiredBy default, Boot ROM access is enabled.Available in user viewUpgrading Boot ROMDuring the operation of the device, you can use the Boot ROM in the storage media to upgrade thosethat are running on the device.Since the Boot ROM programs of the member devices vary with devices, users are easily confused tomake mistakes when upgrading the Boot ROM. After the validity check function is enabled, the devicewill strictly check the Boot ROM upgrade files for correctness and version configuration information toensure a successful upgrade.Follow these steps to upgrade Boot ROM:To do… Use the command… RemarksEnter system view system-view —Enable the validity checkfunction when upgrading BootROMbootrom-updatesecurity-check enableOptionalBy default, the validity checkfunction is enabled at the timeof upgrading Boot ROM.Return to user view quit —Upgrade the Boot ROMprogram on a memberdevice(s)bootrom update file file-urlslot slot-number-lisRequiredAvailable in user view.Restart the device to validate the upgraded Boot ROM.Configuring a Detection IntervalWhen detecting an exception on a port, the operation, administration and maintenance (OAM) modulewill automatically shut down the port. The device will detect the status of the port when a detectioninterval elapses. If the port is still shut down, the device will recover it.Follow these steps to configure a detection interval:
