Designing Cisco Data Center Infrastructure (DCID) — Question 148

A SAN engineer needs to design a Fibre Channel SAN by using Cisco MDS 9000 Series Switches. The solution must meet these requirements:
• ensure storage resilience
• prevent oversubscription
• mitigate congestion on ISL connections
• use virtual links
• support E Ports

Which MDS switch feature should be used to meet these requirements?

Answer options

• A. buffer-to-buffer credits
• B. Receiver Ready
• C. Host Bus Adapter Extended Receiver Ready
• D. Extended Receiver Ready

Correct answer: D

Explanation

The correct answer is D, Extended Receiver Ready, as it provides the necessary support for E Ports and helps mitigate congestion in ISL connections while ensuring storage resilience. The other options, while beneficial in different contexts, do not specifically address all the outlined requirements for this Fibre Channel SAN design.