D-Link DGS-3224TGR - Switch User Manual - Configure Qos
DGS-3224TGR Gigabit Ethernet Switch User’s Guide
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Figure 6- 52. Broadcast/Multicast Storm Control – Edit window
The BS/MS/DLF Upper Threshold sets the rate of broadcast/multicast/destination lookup fail packets received on a port or
group of ports that will trigger the action to be taken by the switch, as detailed below. A range of thousands of packets
received per second (Kpps) between 0 and 255 can be specified.
When a port or group of ports receives more broadcast, multicast, or destination lookup fail packets per second than is
specified in the respective Upper Threshold (0-255 Kpps)field, the switch will take the actions specified in the Broadcast
Storm Mode, Multicast Storm Mode, and the Destination Lookup Failpull-down menus.
The Broadcast Storm Mode is Enabled or Disabled using a pull-down menu. When the Broadcast Storm Mode is Enabled,
and a port contained within the corresponding port group receives more broadcast packets than specified in the Upper
Threshold (0-255 Kpps) field, the switch will drop all broadcast packets received by any port in the port group until the rate
of broadcast packets received by the port group falls.
The Multicast Storm Mode is Enabled or Disabled using a pull-down menu. When the Multicast Storm Mode is Enabled,
and a port contained within the corresponding port group receives more multicast packets than specified in the Upper
Threshold (0-255 Kpps) field, the switch will drop all multicast packets received by any port in the port group until the rate
of multicast packets received by the port group falls.
The Destination Lookup Fail is Enabled or Disabled using a pull-down menu. When the Destination Lookup Fail is
Enabled, and a port contained within the corresponding port group receives more destination lookup failed packets than
specified in the Upper Threshold (0-255 Kpps)field, the switch will drop all destination lookup failed packets received by
any port in the port group until the rate of destination lookup failed packets received by the port group falls.
Configure QOS
The DGS-3224TGR supports 802.1p priority queuing. The switch has eight priority queues. These priority queues are
numbered from 0 — the lowest priority queue — to 7 — the highest priority queue. The eight priority queues specified in
IEEE 802.1p (Q0 to Q7) are mapped to the switch’s priority queues as follows:
Q0 is assigned to the switch’s Q2 queue.
Q1 is assigned to the switch’s Q0 queue.
Q2 is assigned to the switch’s Q1 queue.
Q3 is assigned to the switch’s Q3 queue.