Refer to the exhibit. A new Cisco Nexus 5548 Switch connects to a network. SAN switching is configured on the switch. The switch fc2/10 NP uplink is shown in the exhibit. Which action ensures that…

Question

Exhibits

Options

• AReplace the SFP port module in fc2/10.
• BConfigure the admin port type E on the upstream switch that connects the port.
• CEnable NPIV on the upstream switch that connects the port.
• DConfigure the BB_credit buffers on the upstream switch that connects the port.

• A
  5% (2)
• B
  16% (7)
• C
  77% (33)
• D
  2% (1)

Explanation

Enabling NPIV (N-Port ID Virtualization) on the upstream switch is required because the Nexus 5548 is operating in NPV mode, where its NP (N-Port Proxy) uplink must connect to an NPIV-capable F port on the core/upstream switch. Without NPIV enabled, the upstream switch cannot assign multiple FCIDs to the NPV device's hosts, so the NP uplink stays down - NPIV is a hard prerequisite for NPV uplinks to negotiate and come up.

Why the distractors are wrong:

• A (Replace SFP): The question is a configuration scenario, not a hardware fault; replacing the SFP addresses a physical/optical problem, not an NPV/NPIV mismatch.
• B (Configure port type E on upstream): E ports are for ISL links between full-fabric switches; an NP uplink requires an F port on the upstream side, not an E port - using E would be the wrong port type for NPV topology.
• D (Configure BB_credit buffers): Buffer-to-Buffer credits control flow in an already-established FC link; they don't prevent an NP port from initializing when NPIV isn't enabled.

Memory tip: Use the pairing "NPV needs NPIV" - the device running NPV (your edge switch) depends on NPIV being enabled on the upstream (core) switch. Both acronyms end in "V" for Virtualization: one does the virtualizing, the other allows it.

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