netscreen alarm led 变红的诸多原因

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.

CCIE Security 2009 IOS防火墙合集