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2V0-622 · Question #50

What are two limitations of Link Aggregation Control Protocol (LACP) on a vSphere Distributed Switch? (Choose two.)

The correct answer is B. Software iSCSI multipathing is not compatible. D. It does not support configuration through Host Profiles.. LACP on a vSphere Distributed Switch has specific limitations including incompatibility with software iSCSI multipathing and lack of Host Profile support for its configuration.

Section 2 – Configure and Administer vSphere 6.5 Networking

Question

What are two limitations of Link Aggregation Control Protocol (LACP) on a vSphere Distributed Switch? (Choose two.)

Options

  • AIP Hash load balancing is not a supported Teaming Policy.
  • BSoftware iSCSI multipathing is not compatible.
  • CLink Status Network failover detection must be disabled.
  • DIt does not support configuration through Host Profiles.

How the community answered

(48 responses)
  • A
    13% (6)
  • B
    81% (39)
  • C
    6% (3)

Why each option

LACP on a vSphere Distributed Switch has specific limitations including incompatibility with software iSCSI multipathing and lack of Host Profile support for its configuration.

AIP Hash load balancing is not a supported Teaming Policy.

IP Hash is actually the required and supported load balancing policy when using LACP on a vDS; it is not an unsupported policy but rather the mandated teaming policy for Link Aggregation Group configurations.

BSoftware iSCSI multipathing is not compatible.Correct

Software iSCSI multipathing relies on multiple VMkernel adapters bound to independent uplinks for path diversity, which is fundamentally incompatible with LACP's link aggregation model that presents multiple physical links as a single logical link to the host.

CLink Status Network failover detection must be disabled.

Link Status is the required and recommended network failover detection method when using LACP on a vDS; it does not need to be disabled and is the appropriate detection mechanism for aggregated uplinks.

DIt does not support configuration through Host Profiles.Correct

Host Profiles do not support the configuration of LACP Link Aggregation Groups on a vSphere Distributed Switch, meaning LACP must be configured manually and cannot be applied or enforced through Host Profile compliance checks.

Concept tested: LACP limitations on vSphere Distributed Switch

Source: https://docs.vmware.com/en/VMware-vSphere/7.0/com.vmware.vsphere.networking.doc/GUID-0D1EF5B4-7581-480B-B99D-5714B42CD7A9.html

Topics

#LACP#vDS#iSCSI multipathing#Host Profiles

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