Refer to the exhibit.

An architect selects 5406R switches for the aggregation layer. What is an appropriate amount of bandwidth for the link aggregation between each aggregation layer VSF fabric and the campus core?
Refer to the exhibit.
An architect selects 5406R switches for the aggregation layer. What is an appropriate amount of bandwidth for the link aggregation between each aggregation layer VSF fabric and the campus core?
The appropriate amount of bandwidth for the link aggregation between each aggregation layer VSF fabric and the campus core should be 160 Gbps. Given that the 5406R switches are capable of using 40 Gbps ports, and considering the need for redundancy and sufficient bandwidth, using a 4:1 oversubscription ratio (64 access layer uplinks divided by 4 for the aggregation layer uplinks) results in the need for 160 Gbps (4 uplink ports of 40 Gbps each).
It should be B Correct answer. For an oversubscription ratio 4:1 (64 ports*10gb/4 ports*40gb). 5400 series has only 40gb ports, so with 8 strands, we can go max with 4 uplink ports (40gb max per each port) per each switch