Each VI workload domain requires at least one VXLAN or overlay VLAN. Each cluster can have a dedicated overlay VLAN. However, each cluster is added to a single Transport Zone.
- If each VxRail cluster in a VI workload domain shares the same VLAN subnet for the VTEPs, use the same VLAN for each cluster added to the VI workload domain.
- Use a unique VLAN if you want to start a dedicated VXLAN overlay network. Networking in this VI workload domain will be limited until more clusters are linked to this VXLAN-based logical switch.
- For a new VXLAN VLAN, configure the VLAN on the adjacent switches providing connectivity to the VxRail nodes.
- Add the VXLAN VLAN to each trunked port on the adjacent switches providing connectivity to the VxRail nodes.
- Ensure connectivity to the DHCP server supplying the IP addresses for the VTEP tunnel endpoints to this VXLAN network.
- Configure IGMP Snooping and an IGMP Querier on the adjacent top-of-rack switches.