Which Aruba CX switch feature enables stacking multiple switches to operate as a single unit?

Virtual Switching Framework (VSF) is the Aruba technology that enables the stacking of multiple supported Aruba CX switches, allowing them to be configured and managed as a single logical device. This virtualized stack operates with a single control plane and a single management plane (e.g., one IP address for management). This simplifies network administration by reducing the number of devices that need to be individually managed, while also providing operational benefits like a unified forwarding table and simplified Link Aggregation Group (LAG) configurations across member switches.

B. Virtual Switching Extension (VSX): VSX is a high-availability and redundancy technology that synchronizes two separate switches. Unlike VSF, each switch in a VSX pair maintains its own independent control plane.
C. Multi-Chassis Link Aggregation (MC-LAG): This is a generic industry term for a feature that allows a device to create a LAG with connections to two different upstream switches. Aruba VSX is an implementation of this concept, but it is not a stacking technology.
D. Dynamic Segmentation: This is a security and policy enforcement feature that unifies access policies for wired and wireless users through tunneling traffic to a central gateway. It is unrelated to switch stacking.

1. ArubaOS-CX 10.11 Fundamentals Guide

(December 2023)

Chapter: "Virtual Switching Framework (VSF)"

Page 1. "Virtual Switching Framework (VSF) allows supported switches to be connected to each other (using standard Ethernet ports) and behave like a single logical switch

referred to as a VSF stack."

2. ArubaOS-CX VSF Best Practices Guide

(March 2022)

"Introduction"

Page 4. "Aruba Virtual Switching Framework (VSF) technology virtualizes up to ten physical devices in the same layer into one logical device called a VSF stack. The VSF stack is managed by a single IP address and has a single configuration file."

3. Aruba CX 6300 Switch Series Data Sheet

(April 2024)

"Performance and Resiliency"

Page 3. "Aruba Virtual Switching Framework (VSF): Allows for up to 10 switches to be stacked and managed by a single IP address."

4. ArubaOS-CX 10.11 Fundamentals Guide

(December 2023)

Chapter: "Virtual Switching Extension (VSX)"

Page 1. "VSX is a virtualization technology that provides high availability by creating a redundant

active-active switch pair at the aggregation or core layer of the network. Each VSX switch has an independent control plane..."