D-Link xStack DXS-3350SR Installation & User Manual - Traffic Control
DXS-3350SR Gigabit Layer 3 Switch
Traffic Control
Use the Traffic Control menu to enable or disable storm control and adjust the threshold for multicast and broadcast
storms, as well as DLF (Destination Look Up Failure). Traffic control settings are applied to individual Switch modules. To
view the following window, click Configuration > VLANs > Traffic Control:
Figure 6- 38. Traffic Control Settings and Traffic Control Table window
Traffic or storm control is used to discard broadcast, multicast or ARP request packets when a loop is created. When
enabled, the traffic controls minimize the traffic storm created when loop is formed. Use the Unit and From … To pull-
down menus to cofigure each port or consecutive port group to enable or disable the traffic controls. Broadcast Storm,
Multicast Storm and Destination Lookup Failure (DLF) may be Enabled or Disabled for any port.
When a traffic control is enabled on a port, a counter tracks the number of Broadcast, Multicast or DLF packets forwarded
each second through the port. If the number of packets exceeds the threshold value, Multicast, Braodcast or DLF packets
will be dropped until the rate at which these packets are received falls below the threshold value. The Threshold value is
the upper threshold at which the specified traffic control is triggered. This is the number of Broadcast, Multicast or DLF
packets, in Kbps, received by the Switch that will trigger the storm traffic control measures. The Threshold value can be set
from 0 to 255 packets. The default setting is 128. The settings of each port may be viewed in the Traffic Control Table in
the same window. Click Apply to implement changes made.
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