Juniper netscreen alarm led 变红

原因：

Attacking; get alarm event

Virus;

CUP or Memory Usage; get alarm threshold

Logging is full; get log event

Session connection is too big;

清除方法：

The alarm led can only be cleared via command line interface. Clearing alarm LED is not supported via WebUI.

The alarm message needs to be deleted first? From the command line interface (CLI):

clear alarm traffic [Enter]

clear alarm event [Enter]

Then, the LED will remain lit until the following CLI command is issued:

clear led alarm [Enter]

For ScreenOS 4.0.1r1 and higher, you don't need to clear the logs before you clear the led alarm? Only clearing the led alarm will turn off the alarm led.

 

 

故障描述：
    alarm 灯亮红灯（常亮），且重启后也不会灭掉

原因分析：
    1.Netscrenn 只要有alarm级别以上的日志产生，这个灯就会亮起来，而且不会自动灭掉，
    2.Netscrenn OS的版本低的话，重起也会亮红灯

故障解决：
    1.在命令行界面运行以下命令清除他们：
       clear alarm traffic [回车]
       clear alarm event [回车]
      接着你就可以用下面的命令来关闭报警灯了：
       clear led alarm [回车]
    注：1.报警灯的状态只有在命令行界面下才能够被清除，目前web管理还不支持这个功能。
        2.如果您使用的是ScreenOS 4.0.1r1以上版本的话，则不需要在清除报警灯状态前做清除报警事件日志的工作，只需要清除报警灯的状态就可以了。
        3.升级Netscrenn OS版本

例：
NetScreen-isg2000(M)-> clear alarm traffic
No entry deleted.
NetScreen-isg2000(M)-> clear alarm event
Total entries deleted = 32764.
NetScreen-isg2000(M)-> clear led alarm