You can scale the Ready Stack by adding multiple compute nodes (pods) in the data center. You can use the Dell EMC PowerSwitch Z9264-ON switch to create a simple yet scalable network, as shown in the following figure:
Figure 8. Multiple compute pods scaled out using leaf-spine architecture
The Z9264-ON switches serve as the spine switches in the leaf-spine architecture. The Z9264-ON is a multiline rate switch that supports 10/25/40/50/100 GbE connectivity and can aggregate multiple racks with little or no oversubscription.
When connecting multiple racks, you can build a large fabric that supports multiterabit clusters by using the 40/100 GbE uplinks from the rack. The density of the Z9264-ON enables flattening the network tiers and creating an equal-cost fabric from any point to any other point in the network.
The BCF Controller, when used with the Big Switch SDN operating system, Switch Light OS, can auto-configure these east-west leaf switch interconnects as peer link aggregation groups (LAGs).