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Setting the maximum number of broadcast frames – Allied Telesis AT-S39 User Manual

Page 325

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AT-S39 User’s Guide

325

Setting the Maximum Number of Broadcast Frames

To set the maximum number of broadcast frames you want the ports on
the switch to transmit, perform the following procedure:

1. From the Home page, select Configuration.

2. From the Configuration page, select Layer 1.

When you open the Layer 1 page, the Port Settings tab is selected
by default. If it is not selected, select it now.

3. In the graphical switch image, click a port where you want to specify

the maximum number of broadcast frames.

The selected port turns white. To deselect a port, click it again. You
can select more than one port at a time.

4. Click Modify.

The current settings for the port are displayed in the Port
Configuration menu.

5. In the Broadcast Storm Control section of the menu, enter the

maximum number of broadcast packets you want the port to be able
to transmit.

The range is 0 to 1023 broadcast frames. Specifying a value of “0”
disables Broadcast Storm Control on the port. The port will
forward all broadcast frames. This is the default

As an example, assume that you enter a value of 300 as the
maximum number of broadcast frames for a port. Also assume
that the port is operating at 100 Mbps and that you specified an
interval timer of 100 milliseconds for 100 Mbps ports. The result
would be that the port could transmit up to 300 broadcast frames
every 100 milliseconds. If it received more than 300 broadcast
frames for transmission during a 100 millisecond period, the extra
broadcast frames would be discarded by the port and would not
forwarded.

6. Click Apply.

7. Repeat this procedure to set the maximum number of broadcast

frames for other ports on the switch.