nerdexam
Broadcom-VMware

2V0-622 · Question #59

Which three statements are correct regarding Fibre Channel over Ethernet (FCOE)? (Choose three.)

The correct answer is A. The network switch must have Priority-based Flow Control (PFC) set to AUTO. D. Each port on the FCoE card must reside on a separate vSwitch. E. The ESXi host will require a reboot after moving an FCoE card to a different vSwitch. FCoE in vSphere requires PFC set to AUTO on the switch, each FCoE NIC port on a separate vSwitch, and a host reboot when moving FCoE adapters between vSwitches.

Section 3 – Configure and Administer vSphere 6.5 Storage

Question

Which three statements are correct regarding Fibre Channel over Ethernet (FCOE)? (Choose three.)

Options

  • AThe network switch must have Priority-based Flow Control (PFC) set to AUTO.
  • BThe network switch must have Priority-based Flow Control (PFC) set to ON.
  • CEach port on the FCoE card must reside on the same vSwitch.
  • DEach port on the FCoE card must reside on a separate vSwitch.
  • EThe ESXi host will require a reboot after moving an FCoE card to a different vSwitch.

How the community answered

(46 responses)
  • A
    85% (39)
  • B
    11% (5)
  • C
    4% (2)

Why each option

FCoE in vSphere requires PFC set to AUTO on the switch, each FCoE NIC port on a separate vSwitch, and a host reboot when moving FCoE adapters between vSwitches.

AThe network switch must have Priority-based Flow Control (PFC) set to AUTO.Correct

VMware requires Priority-based Flow Control to be set to AUTO on the physical switch port to allow lossless Ethernet for FCoE traffic; this enables the switch and adapter to negotiate flow control settings dynamically.

BThe network switch must have Priority-based Flow Control (PFC) set to ON.

Setting PFC to ON (forced/always-on) is not the VMware-recommended configuration for FCoE switch ports; AUTO is required to allow proper negotiation.

CEach port on the FCoE card must reside on the same vSwitch.

Placing all FCoE ports on the same vSwitch violates the isolation requirement - each port must reside on a separate vSwitch to correctly segment converged traffic.

DEach port on the FCoE card must reside on a separate vSwitch.Correct

Each physical port on an FCoE converged network adapter must be assigned to its own separate vSwitch to maintain network isolation and proper traffic separation between storage and network paths.

EThe ESXi host will require a reboot after moving an FCoE card to a different vSwitch.Correct

Changes to vSwitch assignment for FCoE adapters require a host reboot to take effect because the FCoE software initiator binds to the vSwitch at boot time and cannot be dynamically reattached.

Concept tested: FCoE switch and vSwitch configuration requirements

Source: https://docs.vmware.com/en/VMware-vSphere/6.7/com.vmware.vsphere.storage.doc/GUID-E8E39B3B-1C5C-4C41-9A9D-3E8D6E7F1B8E.html

Topics

#FCoE#Priority Flow Control#vSwitch placement#FCoE configuration

Community Discussion

No community discussion yet for this question.

Full 2V0-622 Practice