An administrator is deploying vSphere 5.5. The administrator creates a vSphere Distributed
Switch, then uses Auto Deploy to deploy several ESXi hosts. After the hosts are deployed, the
administrator notices that LACP packets are not being sent between them.
Which condition would cause this issue to occur?
A.
The LACP support settings do not exist in the Host Profile.
B.
The LACP installation bundle is not included in the Image Profile.
C.
The LACP setting is not enabled on vCenter Server.
D.
LACP has not been configured on the Auto Deploy server.
Explanation:
A is correct
LACP support on a vSphere Distributed Switch has limitations and one of it is LACP support settings are not available in host profiles
http://pubs.vmware.com/vsphere-55/index.jsp?topic=%2Fcom.vmware.vsphere.networking.doc%2FGUID-3FDE1E96-9217-4FE6-8B76-6E3A64766828.html&resultof=%22LACP%22%20%22lacp%22%20%22Limitations%22%20%22limit%22%20%22vSphere%22%20%22vsphere%22%20%22Distributed%22%20%22distribut%22%20%22Switch%22%20%22switch%22
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http://pubs.vmware.com/vsphere-55/index.jsp#com.vmware.vsphere.networking.doc/GUID-3FDE1E96-9217-4FE6-8B76-6E3A64766828.html
Limitations of the LACP Support on a vSphere Distributed Switch
The LACP support on a vSphere Distributed Switch lets network devices to negotiate automatic bundling of links by sending LACP packets to a peer. However, the LACP support on a vSphere Distributed Switch has limitations.
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The LACP support is not compatible with software iSCSI multipathing.
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The LACP support settings are not available in host profiles.
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The LACP support is not possible between nested ESXi hosts.
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The LACP support does not work with the ESXi dump collector.
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The LACP support does not work with port mirroring.
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The teaming and failover health check does not work for LAG ports. LACP checks the connectivity of the LAG ports.
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The enhanced LACP support works correctly when only one LAG handles the traffic per distributed port or port group.
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The LACP 5.1 support only works with IP Hash load balancing and Link Status Network failover detection.
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The LACP 5.1 support only provides one LAG per distributed switch and per host.
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A : The LACP support settings do not exist in the Host Profile.
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