Netgear FS752TPS FS752TS Setup Manual - Page 141

Traffic Control, Storm Control

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FS700TS Smart Switch Software Administration Manual 2. Select the interface. 3. Select the Port Control state, Guest VLAN mode, Periodic Reauthentication status and Authenticator State in the provided fields in the first row. 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. Storm Control is enabled by default. The Storm Control screen provides fields for configuring broadcast storm control. Managing Security v1.0, September 2007 6-13

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FS700TS Smart Switch Software Administration Manual
Managing Security
6-13
v1.0, September 2007
2.
Select the interface.
3.
Select the
Port Control
state,
Guest VLAN
mode,
Periodic Reauthentication
status and
Authenticator State
in the provided fields in the first row.
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. Storm Control
is enabled by default.
The Storm Control screen provides fields for configuring broadcast storm control.