E20-018 · Question #258
You are designing a VDC that uses converged networking to support both LAN and SAN traffic. FCoE is used exclusively for storage access. The access and aggregation layer switches that have been…
The correct answer is B. Four 40 Gb/s ports and eight 10 Gb/s ports. See the full explanation below for the reasoning.
Question
You are designing a VDC that uses converged networking to support both LAN and SAN traffic. FCoE is used exclusively for storage access. The access and aggregation layer switches that have been chosen support both 10 and 40 Gigabit Ethernet and Data Center Bridging. You have determined that the traffic between the access layer and aggregation layer switches is:
- Average SAN (FCoE)-60 Gb/s
- Average LAN (Ethernet)-100 Gb/s
- Burst SAN (FCoE)-80 Gb/s
- Burst LAN (Ethernet)-130 Gb/s
The port channeling technology you are using requires that channels be configured with even numbers of links. Performance cannot be degraded due to a failure of a single switch. Which port configuration would support the average and burst traffic between the access and aggregation layer switches?
Options
- AFour 40 Gb/s ports and six 10 Gb/s ports
- BFour 40 Gb/s ports and eight 10 Gb/s ports
- CSix 40 Gb/s ports
- DSix 40 Gb/s ports and two 10 Gb/s ports
How the community answered
(25 responses)- A12% (3)
- B80% (20)
- C4% (1)
- D4% (1)
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