As shown in the figure, which of the following ports will be in a blocking state?

The correct answer is B. G0/0/3 of SWB. SWA has the lowest Bridge ID and is the root bridge. In this topology, G0/0/2 of SWA and G0/0/1 of SWC are forwarding ports. Since G0/0/3 of SWB provides an alternate path to the root bridge, it will be placed in a blocking state to prevent network loops. The Spanning Tree…

Ethernet Switching Technologies

Question

Options

AG0/0/2 of SWC
BG0/0/3 of SWB
CG0/0/1 of SWC
DG0/0/3 of SWA

How the community answered

(32 responses)

A
6% (2)
B
72% (23)
C
3% (1)
D
19% (6)

Explanation

SWA has the lowest Bridge ID and is the root bridge. In this topology, G0/0/2 of SWA and G0/0/1 of SWC are forwarding ports. Since G0/0/3 of SWB provides an alternate path to the root bridge, it will be placed in a blocking state to prevent network loops. The Spanning Tree Protocol ensures that only the most efficient path to the root bridge is active, and alternate paths are blocked until

Topics

#STP#blocking state#port role selection#spanning tree topology

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