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Port Configuration
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3
Setting Broadcast Storm Thresholds
Broadcast storms may occur when a device on your network is malfunctioning, or if
application programs are not well designed or properly configured. If there is too
much broadcast traffic on your network, performance can be severely degraded or
everything can come to complete halt.
You can protect your network from broadcast storms by setting a threshold for
broadcast traffic for each port. Any broadcast packets exceeding the specified
threshold will then be dropped.
Command Usage
• Broadcast Storm Control is enabled by default.
• The default threshold is 500 packets per second.
• Broadcast control does not effect IP multicast traffic.
• The specified threshold applies to all ports on the switch.
Command Attributes
• Port – Port number.
• Type – Indicates the port type. (1000BASE-T or SFP)
• Protect Status – Shows whether or not broadcast storm control has been enabled.
(Default: Enabled)
• Threshold – Threshold as percentage of port bandwidth. (Options: 500-262143
packets per second; Default: 500 packets per second)
• Trunk – Shows if port is a trunk member.
Web – Click Port, Broadcast Control. Check the Enabled box for any interface, set
the threshold, and click Apply.
Figure 3-56 Port Broadcast Control