System information

2-27
Port Configuration
2
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
• Threshold – Threshold as percentage of port bandwidth.
(Options: 500-262143 packets per second; Default: 500 packets per second)
• Broadcast Control Status – Shows whether or not broadcast storm control has
been enabled on this interface. (Default: Enabled)
Web – Click Port, Port Broadcast Control. Set the threshold for all ports, click Apply.
Figure 2-17. Enabling Broadcast Control
CLI – Specify an interface, and then enter the threshold. This threshold will then be
set for all ports. The following sets broadcast suppression at 1000 packets per
second.
Configuring Port Mirroring
You can mirror traffic from any source port to a target port for real-time analysis. You
can then attach a logic analyzer or RMON probe to the target port and study the
traffic crossing the source port in a completely unobtrusive manner.
Command Usage
• Monitor port speed should match or exceed source port speed, otherwise traffic
may be dropped from the monitor port.
• All mirror sessions have to share the same destination port.
• When mirroring port traffic, the target port must be included in the same VLAN as
the source port.
Console(config)#interface ethernet 1/1
Console(config-if)#switchport broadcast packet-rate 100 3-62
Console(config-if)#