Spanning Tree BPDU Guard on Cisco Catalyst Switch
http://gns3vault.com Spanning Tree BPDU guard ensures that an interface will be error disabled as soon as you receive a BPDU on it. This is useful on access ports where you shouldn't expect any BPDUs and will protect your switched network. This video explains you how to configure this and what the result is once your interface receives a BPDU.
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