User Guide     540
Configuring QoS Bandwidth Control Configuration
3.1.2  Configuring Storm Control
Choose the menu QoS > Bandwidth Control > Storm Control to load the following page.
Figure 3-2 Configuring Storm Control
Follow these steps to configure the Storm Control function:
1)  Select the desired port and configure the upper rate limit for forwarding broadcast 
packets, multicast packets and UL-frames (Unknown unicast frames).
Rate Mode Specify the Rate Mode for the broadcast threshold, multicast threshold and UL-
Frame threshold on the desired port.
kbps: The switch will limit the maximum speed of the specific kinds of traffic in 
kilo-bits per second.
ratio: The switch will limit the percentage of bandwidth utilization for specific 
kinds of traffic.
Broadcast 
Threshold (0-
1,000,000)
Specify the upper rate limit for receiving broadcast packets. The valid values 
differ among different rate modes. The value 0 means the broadcast threshold  is 
disabled. The broadcast traffic exceeding the limit will be processed according to 
the Action configurations.
Multicast 
Threshold (0-
1,000,000)
Specify the upper rate limit for receiving multicast packets. The valid values 
differ among different rate modes. The value 0 means the multicast threshold  is 
disabled. The multicast traffic exceeding the limit will be processed according to 
the Action configurations.