Is there a difference in BPDU Guard and Root Guard?. I read that with BPDU Guad the port is disabled if it receives a Hello BPDU.... and with Root Guard it can receive Hello BPDU but disables the port if it receives a better BPDU. Can someone let me know those are two different things? Tnks.
Have a look at this doc which gives a nice example of where root guard would be used in a switched environment -