Qos > Storm Control; Qos > Bandwidth Control - D-Link DES-1228 Manual

5 Configuration
D-Link Web Smart Switch User Manual
Restricted TCN: Toggle between True and False to set the restricted TCN of the packet. Topology Change
Notification (TCN) is a BPDU that a bridge sends out to its root port to signal a topology change. If set to
True, it stops the port from propagating received TCN and to other ports. The default value is False.
Click Apply for the settings to take effect. Click Refresh to renew the page.
QoS > Storm Control
The Storm Control feature provides the ability to control the receive rate of broadcast, multicast, and
unknown unicast packets. Once a packet storm has been detected, the Switch will drop packets coming into
the Switch until the storm has subsided.
Figure 69 – QoS > Storm Control
Storm Control Type: User can select the different Storm type from Broadcast Only, Multicast & Broadcast,
and Multicast & Broadcast & Unknown Unicast.
Threshold (64Kbps * N): If storm control is enabled (default is disabled), the threshold is from of 64 ~
1,024,000 Kbit per second, with steps (N) of 64Kbps. N can be from 1 to 16000.
Click Apply for the settings to take effect.
QoS > Bandwidth Control
The Bandwidth Control page allows network managers to define the bandwidth settings for a specified port's
transmitting and receiving data rates.
Figure 70 – QoS > Bandwidth Control
From Port / To Port: A consecutive group of ports may be configured starting with the selected port.
Type: This drop-down menu allows you to select between RX (receive), TX (transmit), and Both. This
setting will determine whether the bandwidth ceiling is applied to receiving, transmitting, or both
receiving and transmitting packets.
No Limit: This drop-down menu allows you to specify that the selected port will have no bandwidth limit.
Enabled disables the limit.
42