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Author(s) Emilie Deprez
Deadline No deadline
Submission limit No limitation
Category tags ethernet

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The spanning tree protocol - step by step - 1

Consider the network shown in the figure below where all links have a cost of 1.

S6 S18 S24 1 2 1 2 1 2
Question 1: Root switch

Which is the root switch in this network ?

Provide your answer as Sx where x is the number of the switch

Question 2: BPDU sent

What is the BPDU sent by switch S6 in this network ?

Provide your answer as R=123, C=456, T=789

Question 3: BPDU sent

What is the BPDU sent by switch S18 in this network ?

Provide your answer as R=123, C=456, T=789

Question 4: BPDU sent

What is the BPDU sent by switch S24 in this network ?

Provide your answer as R=123, C=456, T=789

Question 5: Best BPDU

Between S6 and S18, which switch has the best BPDU ?

Provide your answer as Sx where x is the number of the switch

Question 6: Best BPDU

Between S6 and S24, which switch has the best BPDU ?

Provide your answer as Sx where x is the number of the switch

Question 7: Best BPDU

Between S18 and S24, which switch has the best BPDU ?

Provide your answer as Sx where x is the number of the switch

Question 8: Port State

What is the state of each port of S6 ?

Provide your answer as 1:root, 2:designated, 3:blocked, ...

Question 9: Port State

What is the state of each port of S18 ?

Provide your answer as 1:root, 2:designated, 3:blocked, ...

Question 10: Port State

What is the state of each port of S24 ?

Provide your answer as 1:root, 2:designated, 3:blocked, ...