1-6whether you press Ctrl+B or not, the system does not enter the Boot ROM menu, but enters thecommand line configuration interface directly.In 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 isenabled.Available in user view.Configuring a Detection IntervalSome protocol modules may shut down ports under specific circumstances. For example, an MSTPmodule will automatically shut down a port that receives configuration messages after the BPDU guardfunction is enabled on the port. Then, the device enables a detection timer and detects the status of theport. If the port is still down when the detection timer times out, the device will automatically bring up theport.Follow these steps to configure a detection interval:To do… Use the command… RemarksEnter system view system-view —Configure a detection interval shutdown-interval timeOptionalThe detection interval is 30seconds by default.Clearing the 16-bit Interface Indexes Not Used in the Current SystemIn 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 interfacename 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 whena logical interface is removed.If you repeatedly insert and remove delete a large number of logical interfaces, the interface indexes willbe used up, which will result in interface creation failures. To avoid such a case, you can clear all 16-bitinterface 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:
