Indicates whether BPDU Guard for Spanning Tree
Port Fast Start feature is enabled or not. If the
value of this object is set to enabled(1), then
when the switch receives a BPDU from a port with
the value of portSpantreeFastStart object set to
enabled(1), that port is immediately disabled.
This object is deprecated and replaced by
stpxFastStartBpduGuardEnable in
CISCO-STP-EXTENSIONS-MIB.