Configuring Security
Configuring Port Security
Cisco Small Business 200 1.1 Series Smart Switch Administration Guide  243
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• Storm Control Rate Threshold—Enter the maximum rate at which unknown 
packets can be forwarded. The default for this threshold is 10,000 for FE 
devices and 100,000 for GE devices.
• Storm Control Mode—Select one of the modes: 
- Unknown Unicast, Multicast & Broadcast—Counts unknown Unicast, 
Broadcast, and Multicast traffic towards the bandwidth threshold.
- Multicast & Broadcast—Counts Broadcast and Multicast traffic towards 
the bandwidth threshold.
- Broadcast Only—Counts only Broadcast traffic towards the bandwidth 
threshold.
STEP  4 Click Apply. Storm control is modified, and the Running Configuration file is 
updated.
Configuring Port Security 
Network security can be increased by limiting access on a port to users with 
specific MAC addresses. The MAC addresses can be either dynamically learned 
or statically configured.
Port security monitors received and learned packets. Access to locked ports is 
limited to users with specific MAC addresses. 
Port Security has two modes:
• Classic Lock—All learned MAC addresses on the port are locked, and the 
port does not learn any new MAC addresses. The learned addresses are not 
subject to aging or re-learning. 
• Limited Dynamic Lock—The switch learns MAC addresses up to the 
configured limit of allowed addresses. After the limit is reached, the switch 
does not learn additional addresses. In this mode, the addresses are 
subject to aging and re-learning.