Comparison of commonly used STP protocols

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the commonly used STP protocols are compared as below:

Port StatePort RoleDestination MACIEEE Standardtimerspanning-tree
STPforwarding
learning
listening
blocking
discarded
root port
designated port
edge port
0180-c200-0000802.1dhello time (2s)
max age (20s)
forward delay (15s)
a spanning tree for all vlans
RSTPforwarding
learning
discarding
root port
designated port
alternate port
backup port
edge port
0180-c200-0000802.1whello time (2s)
max age (20s)
forward delay (15s)
a spanning tree for all vlans
VBSTdiscarding
learning
forwarding
root port
designated port
alternate port
backup port
edge port
0100-0ccc-cccdN/Ahello time (2s)
max age (20s)
forward delay (15s)
a spanning tree for per vlan
MSTPdiscarding
learning
forwarding
root port
designated port
alternate port
backup port
master port
regional edge port
edge port
0180-c200-0000802.1shello time (2s)
max age (20s)
forward delay (15s)
a spanning tree for a group of vlans


  • x
  • convention:

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