If you want to disable STP on a port connected to a server, which command would you use?
A. disable spanning-tree
B. spanning-tree off
C. spanning-tree security
D. spanning-tree portfast
Answer: Option D
Solution (By Examveda Team)
If you have a server or other devices connected into your switch that you're totally sure won't create a switching loop if STP is disabled, you can use something calledportfast
on these ports. Using it means the port won't spend the usual 50 seconds to come up while STP is converging.
Port fast does not disable spanning tree on a port. this is a very common misnomer. the port still receives and learns BPDU with port fast enabled. the only thing port fast does is accelerate my transition from blk to fwd.