Netgear GS724AT GS724AT Reference Manual - Page 158
Traffic Control, Storm Control
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GS700AT Series Smart Switch Software Administration Manual 4. If you selected Enable as the Periodic Reauthentication status, enter the Reauthentication Period in the provided field in the first row. 5. Enter the Quiet Period, Resending EAP time, Max EAP Requests, Supplicant Timeout and Server Timeout in the provided field in the first row. 6. Click Apply to update the device. Traffic Control The Traffic Control menu contains the following options: • "Storm Control" • "Port Security" Storm Control Storm Control limits the amount of Multicast and Broadcast frames accepted and forwarded by the device. When Layer 2 frames are forwarded, Broadcast, and Multicast 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. Storm control can be enabled per port by defining the packet type and the rate the packets are transmitted. The system measures the incoming Broadcast and Multicast frame rates separately on each port, and discards the frames when the rate exceeds a user-defined rate. By default, Storm Control is enabled on all ports for Broadcast packets with a threshold of 200 kbps. The Storm Control screen provides fields for configuring broadcast storm control. Managing Security v1.0, March 2008 6-15