Learn Cisco Port Security the practical way. In this live lab, we compare shutdown, protect, and restrict so you can choose the right violation mode. Watch errdisable automatic recovery at 30 seconds and see why a violating device can make a port flap. We cover SNMP traps, syslog, and violation counters, plus dynamic, static, and sticky secure MAC learning, saving to startup config, and increasing the maximum allowed MAC addresses from 1 to 2. You’ll also see Port Security on a trunk port. Includes show commands, config steps, and study slides so you can practise in Packet Tracer and on real switches.
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0:00 – Port Security
03:04 – Configuration Part 1
04:00 – Configuration Part 2
05:26 – Configuration Part 4
07:09 – Causing Another Violation
09:36 – Deciding Whether to Shut the Interface Down
10:06 – Configuration Part 5
11:05 – On the Individual Interface
13:29 – The Interface Is Still Up
13:58 – Configuration Part 7
18:01 – The MAC Address Table Is Different from the Port Security Table
21:58 – The Advantage of Sticky
22:58 – Configuration Part 8
23:55 – Conclusion
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Disclaimer: This video is for educational purposes only.
#cisco #ccna #portsecurity
