The Aruba CX 9300 and CX 8325 switch series are specifically designed and recommended for data center leaf-spine architectures. The CX 9300 series offers high-density 100GbE/400GbE connectivity, making it an ideal choice for high-performance spine or leaf roles. The CX 8325 series provides flexible high-density 1/10/25/40/100GbE ports, positioning it as a versatile and powerful switch for both leaf and spine deployments in modern data centers. Both series are built on a non-blocking, distributed architecture required for the high east-west traffic demands of a leaf-spine fabric.

A. Aruba CX 10000: This is a specialized Distributed Services Switch with an integrated DPU for stateful services. While used as a Top-of-Rack leaf, it's not a general-purpose recommendation for a standard leaf-spine fabric.

C. Aruba CX 6300: This series is primarily designed for campus access and aggregation roles. It lacks the high-performance, non-blocking architecture and port density typically required for data center spine or demanding leaf roles.

1. Aruba CX 9300 Switch Series Data Sheet: "The Aruba CX 9300 Switch Series is a next-generation 100GbE/400GbE data center switch designed for spine-and-leaf architectures that require high-performance server connectivity..." (Page 1

Overview).

2. Aruba CX 8325 Switch Series Data Sheet: "It is ideal for use as a spine or leaf switch in modern data centers that require high performance and a non-blocking architecture." (Page 1

Product overview).

3. Aruba Data Center Networking Solution Overview: This document frequently positions the CX 8325 and CX 9300 as the core components for leaf-spine fabrics. For example

in topology diagrams

the CX 9300 is shown as a spine and the CX 8325 as a leaf. (Page 5

Figure 2: Aruba CX switching for modern data centers).

4. Aruba CX 6300 Switch Series Data Sheet: "The Aruba CX 6300 Switch Series is a modern

flexible

and intelligent family of AOS-CX stackable switches ideal for access

aggregation

and data center Top-of-Rack (ToR) deployments." (Page 1

Product overview). This highlights its primary role is outside the core leaf-spine fabric

though it has ToR applicability.