D-Link DGS-3100 Configuring Storm Control, 3. Traffic Control Settings Page, Description

DGS-3100 Series Gigabit Stackable Managed Switch User Manual

Configuring Storm Control

Storm control limits the amount of Multicast, Broadcast and Unknown Unicast frames accepted and forwarded by the device. When Layer 2 frames are forwarded, Broadcast, Multicast and Unknown Unicast frames are flooded to all ports on the relevant VLAN. This occupies bandwidth, and loads all nodes on all ports.

A Broadcast Storm is a result of an excessive amount of broadcast messages simultaneously transmitted across a network by a single port. Forwarded message responses are heaped onto the network, straining network resources or causing the network to time out.

1.Click Qos > Traffic Control. The Traffic Control Settings Page opens:

Figure 4-3. Traffic Control Settings Page

The Traffic Control Settings Page contains the following fields:

Field

Unit

From Port

To Port

Storm Control Type

State

Threshold (3500- 1000000)

Description

Defines the stacking member for which the storm control parameters are displayed.

Defines from which port storm control is configureed.

Defines to which port storm control is configured.

Specifies the Broadcast mode currently enabled on the device. The possible field values are:

Broadcast Storm

Broadcast and Multicast Storm

Broadcast, Multicast and Unknown Unicast Storm

Indicates which storm control is enabled on the port. The possible field values are: Enable — Enables storm control on the selected port.

Disable — Disables storm control on the selected port. (This is the default value)

Indicates the maximum rate (kilobits per second) at which ‘storm’ packets are forwarded. The range is 3500 -1,000,000. The default value is 3,500.

2.Define the Unit, From Port, To Port, Storm Control Type, State, and Threshold fields.

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