Each pair of ports on each node that supports a VxRail network that is enabled for link aggregation connects to corresponding switch ports. Those switch ports must be configured for link aggregation as well. The commands to perform this action depend on the switch model and operating system. See the guides provided by your switch vendor for the steps to complete this task.
If you are deploying the VxRail cluster against a customer-supplied virtual-distributed switch, this task must be completed before the VxRail initial build operation. If you deploy the VxRail cluster using the virtual-distributed switch that is included with the product, this activity is performed after the initial cluster build operation completes.
Note: Dell Technologies published a procedure for the scenarios where link aggregation on the VxRail networks is performed as a Day 2 activity.