Verify that the network infrastructure and the networking configuration on the ESXi hosts meet the minimum networking requirements for vSAN.
Each host must have minimum bandwidth dedicated to vSAN.
For information about networking considerations in vSAN, see Designing the vSAN Network.
|Connection between hosts||Each host in the vSAN cluster, regardless of whether it contributes capacity, must have a VMkernel network adapter for vSAN traffic. See Set Up a VMkernel Network for vSAN.|
|Host network||All hosts in your vSAN cluster must be connected to a vSAN Layer 2 or Layer 3 network.|
|IPv4 and IPv6 support||The vSAN network supports both IPv4 and IPv6.|