Users Guide

Broadcast Storm Control

On the Aggregator, the broadcast storm control feature is enabled by default on all ports, and disabled on a port when an iSCSI storage

device is detected. Broadcast storm control is re-enabled as soon as the connection with an iSCSI device ends.

Broadcast traffic on Layer 2 interfaces is limited or suppressed during a broadcast storm. You can view the status of a broadcast-storm

control operation by using the show io-aggregator broadcast storm-control status command. You can disable broadcast

storm control by using the no io-aggregator broadcast storm-control command.

Dell Networking OS Behavior: If broadcast traffic exceeds 1000 Mbps, the Aggregator limits it to 1000 Mbps per port-pipe.

Supported Modes

Standalone, PMUX, VLT, Stacking

Topics:

• Disabling Broadcast Storm Control

• Displaying Broadcast-Storm Control Status

• Configuring Storm Control

Disabling Broadcast Storm Control

To disable broadcast storm control on an Aggregator, use the no io-aggregator broadcast storm-control command from

CONFIGURATION mode.

To re-enable broadcast storm control, enter the io-aggregator broadcast storm-control command.

Displaying Broadcast-Storm Control Status

To display the status of a current storm control operation, use the show io-aggregator broadcast storm-control status

command from EXEC Privilege mode.

Configuring Storm Control

The following configurations are available only in PMUX mode.

1 To configure the percentage of broadcast traffic allowed on an interface, use the storm-control broadcast

[packets_per_second in] command from INTERFACE mode.

2 To configure the percentage of multicast traffic allowed on an interface, use the storm-control multicast

[packets_per_second in] command from INTERFACE mode.

3 To configure the percentage of unknown-unicast traffic allowed on an interface, use the storm-control unknown-unicast

[

packets_per_second in] command from INTERFACE mode.

Broadcast Storm Control 251