stpOptfBpduGuard
1.3.6.1.4.1.3320.9.253.2
BPDU guard can operate in all spanning tree modes, but the feature operates with some differences.
In SSTP and PVST modes, if a Port Fast-enabled port receives a BPDU,it will be shutdown.
In RSTP and MSTP modes, if a port receives a BPDU, it will be blocked for double forward time.
In all spanning tree modes, a BPDU guard-enabled port will not send BPDUs.