Configure Storm Suppression of L2 Ethernet Interface

Configure Storm Suppression Parameters

Limit the broadcast, multicast or unknown unicast traffic on the port by configuring the storm suppression parameters. When the broadcast, unknown multicast or unknown unicast traffic on the port exceeds the set threshold, the system drops the excessive packets, so as to make the proportion of the broadcast, multicast or unknown unicast traffic on the port reduce to the limited range and ensure the normal running of the network services.

Table 2-22 Configure storm suppression parameters

Configure Action Executed after Storm Suppression

When the storm is detected on the specified port and the storm suppression is enabled, you can select three policies to process the storms on the port:

• One is to record on the device and print and output the detected storm alarm information on the terminal. In the mode, the port is still enabled, so the port can receive the subsequent traffic and the storm on the port cannot be removed.
• One is to disable the port, record on the device and print and output the detected storm alarm information on the terminal, and send the alarm information of detecting the storm and disabling the port to the configured log server via trap. In the mode, the port is disabled, so the port cannot receive the subsequent traffic and the storm on the port is removed at once.
• Another is to record on the device and print and output the detected storm alarm information on the terminal, and send the alarm information of detecting storm to the configured log server via trap. In the mode, the port is enabled, so the port can receive the subsequent traffic and the storm on the port cannot be removed.

Table 2-23 Configure action executed after storm suppression

• ---

  When the port is disabled by the storm suppression function and set as Error-Disabled and it is necessary to recover automatically, you can set the above function by configuring the command errdisable recovery cause.
• L3 Ethernet interface does not support configuring the action executed after storm suppression happens.

  ---