Hello Folks!
Although L3 and L2 are supported for a vSAN, I would be hear from you what are the benefits and drawbacks of using each network layer when deploying a vSAN Metro Stretched Cluster into a greenfield environment.
Customer does not have NSX licensing yet, but have all vSphere and vSAN Enterprise plus licensing, also cisco 9k and 5k leaf and aggregations in place over two sites that fulfill all latencies and bandwidth network requirements.
This customer initially has one vCenter license instance with means that it will manage both preferred and secondary sites. The idea is create only one VDS in this initial design avoiding complexity.
Another questions related with this same customer scenario, is: if we decide to go via L3 with vSAN vmkernel stack routing, what are the impacts in going with this same approach for management and vMotion networks stacks? i.e. in an hot vmotion migration of an VM connected with an vmnetwork portgroup, it will transferred via L3, but what when it lands at other site broadcast domain? It will works only with cold migration provisioning vmkernel?
Thanks in advance!! Cheers!