Which are the two network requirements for a VMware vSAN 6.5 cluster? (Choose two.)
A.
Multicast must be enabled on the physical switches and routers that handle vSAN traffic.
B.
vSAN requires IPv6 only.
C.
All hosts must have a dedicated 40GbE NIC.
D.
The vSAN network supported IPv4 or IPv6.
E.
vSAN requires IPv4 only.
Explanation:
The vSAN network supports both IPv4 and IPv6.
https://docs.vmware.com/en/VMware-vSphere/6.5/com.vmware.vsphere.virtualsan.doc/GUIDAFF133BC-F4B6-4753-815F-20D3D752D898.html
http://cormachogan.com/2014/01/21/vsan-part-15-multicast-requirement-for-networking-misconfigurationdetected/
A,D
https://docs.vmware.com/en/VMware-vSphere/6.5/com.vmware.vsphere.virtualsan.doc/GUID-AFF133BC-F4B6-4753-815F-20D3D752D898.html
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Correct A D .
https://storagehub.vmware.com/export_to_pdf/vmware-vsan-6-5-technical-overview
Page 11
Network Considerations
All-flash vSAN configurations require 10Gb network connectivity. 1Gb connections are supported for
hybrid configurations although 10Gb is recommended. Currently, vSAN requires the use of multicast on the network.
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A D is correct.
– The vSAN network supports both IPv4 and IPv6.
– Each host must have minimum bandwidth dedicated to vSAN => Dedicated 1 Gbps for hybrid configurations and Dedicated or shared 10 Gbps for all-flash configurations
https://docs.vmware.com/en/VMware-vSphere/6.5/com.vmware.vsphere.virtualsan.doc/GUID-AFF133BC-F4B6-4753-815F-20D3D752D898.html
In vSAN 6.6 and later releases, multicast is not required on the physical switches that support the vSAN cluster. You can design a simple unicast network for vSAN. Earlier releases of vSAN rely on multicast to enable heartbeat and to exchange metadata between hosts in the cluster. If some hosts in your vSAN cluster are running earlier versions of software, a multicast network is still required.
https://docs.vmware.com/en/VMware-vSphere/6.5/com.vmware.vsphere.virtualsan.doc/GUID-031F9637-EE29-4684-8644-7A93B9FD8D7B.html#GUID-031F9637-EE29-4684-8644-7A93B9FD8D7B
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