Operation

Question 1

How is the “Root Bridge” decided?

Answer 1

It’s the switch with the lowest BID.

Question 2

How are “Root Ports” selected?

Answer 2

1) Cost to Root Bridge is lowest. 2) Connected BID is lowest. 3) Connected Port ID is lowest. 4) Local Port ID is lowest.

Question 3

How are “Designated Ports” selected?

Answer 3

1) Total cost to Root Bridge. 2) Local BID. 3) Local Port ID.

Question 4

How are “Blocked Ports” selected?

Answer 4

Any non-root, non-designated port is a blocked port.