If constructing multiple database racked systems or connecting this Ready Stack to other rack-based systems in the data center, you can use Dell EMC Networking Z9264 switches to create a simple yet scalable network, as shown in the following figure. The Z9264 switches serve as the spine switches in the leaf-spine architecture. The Z9264 is a multiline rate switch that supports 10/25/40/50/100 GbE connectivity and can aggregate multiple racks with little or no oversubscription.
Figure 5. Multiple compute pods scaled out by using leaf-spine architecture
When connecting multiple racks by using the 40/100 GbE uplinks from the rack, you can build a fabric that supports multi-terabit clusters. The density of the Z9264 enables flattening of the network tiers, so you can create an equal-cost fabric from any point to any other point in the network.
For large-domain Layer 2 requirements, use extended Virtual Link Trunking (eVLT) on the Z9264, as shown in the following figure. The Virtual Link Trunking (VLT) pair that is formed can scale to hundreds of servers inside multiple racks. Each rack has four 40/100 GbE links to the core network, providing enough bandwidth for all the traffic between each rack.
Figure 6. Multiple compute pods scaled out by using eVLT