Usage of BPDUFilter at the interface level
Posted on 2016-07-19
If I understand When BPDUFilter is configured globally on a Switch (SW1), it will disable STP, if someone plugs a switch in the other side then SW1 will receive BPDUs and turn back on STP as normal..nothing Risky...
If BPDUFilter is configured ai the Interface level of SW1, then if someone plugs a Switch to the port of SW1 where BPDUFilter was configured then it might create a Loop..
I do not understand why at the Global Level BPDUFilter does not create a Loop, but it can create a Loop when configured at the Interface Level?
and in which circumstance BPDUFilter is configured at the interface level, since it can create a Loop..