Can someone confirm how I think bpduguard works? I think it stops the potential for loops on a switchport that's configured with portfast by either shutting the port down, or sending an snmp trap(depending on which you choose)when it receives a bpdu on that interface...most likely caused by someone plugging in a switch on the other end.
Would this be a correct assessment?
Also, I know that you can set switch port security as well by way of the following commands:
>switchport port-security maximum 
>switchport port-security mac-address sticky
>switchport port-security violation [shutdown]
Can someone explain the second line, specifically the 'sticky' command? So... if you only allow one mac-address by way of the first command, does the second command say that it will dynamically learn the mac-address and keep that address in it's memory by way of the 'sticky' command?
What happens if you plug a different legimate PC into that port if that's what it means?
Thanks in advance.