Dell PowerConnect 2708 Apêndice - Página 10

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Dell PowerConnect 2708 Apêndice

Storm Control

Enabling Storm Control
The Storm Control mechanism is useful when a faulty Network Interface Card (NIC), or Broadcast
or Multicast frames cause network flooding, beyond the threshold rate limit. When Layer 2 frames
are forwarded, Broadcast and Multicast frames cause flooding to all ports on the relevant VLAN.
This occupies bandwidth, and loads all nodes connected on all ports.
The Network Administrator moderates the network traffic by setting the threshold so as to limit, or
disables the Storm Control operation, therefore limiting the amount of Multicast and Broadcast
frames accepted and forwarded by the PowerConnect 2708/2716/2724 device.
In the example shown in the following screen, the Broadcast Rate Threshold is configured to 1000
packets per second. Count Multicast with Broadcast is Enabled, and Broadcast Control is Enabled.
NOTE:
The threshold rate limit is defined by the Network Administrator, according to the characteristics of the
network to be monitored, and the applications running on the network.
NOTE:
The Storm Control screen below applies to the PowerConnect 2716 and PowerConnect 2724 devices.
Figure 9-10. Storm Control
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