Which Aruba CX feature ensures non-disruptive software updates with minimal downtime?

Live Upgrade is a specific feature in ArubaOS-CX designed to update the switch software with minimal service disruption. On systems with redundant management modules or in a Virtual Switching Framework (VSF) stack, Live Upgrade updates the standby member first. Once the standby is updated and ready, a graceful failover is initiated, making the newly updated member active. This process ensures the data plane continues to forward traffic throughout the upgrade, significantly reducing downtime compared to a standard reboot.

A. Virtual Switching Framework (VSF) is a stacking technology that virtualizes multiple switches into a single logical device. While it provides the high-availability foundation for a Live Upgrade, it is not the upgrade feature itself.
C. Multi-Chassis Link Aggregation (MC-LAG) is a high-availability feature that provides link and chassis redundancy for connected devices, but it is not a software update mechanism for the switches.
D. Zero Touch Provisioning (ZTP) is a deployment feature used to automate the initial configuration and software loading of a new switch, not for upgrading an already operational switch.

1. HPE Aruba Networking, ArubaOS-CX 10.12 High Availability Guide, Page 19, "Live upgrade" chapter: "The live upgrade feature provides the ability to upgrade the switch software with minimum downtime. This feature is supported on switches with redundant management modules and on VSF stacks."

2. HPE Aruba Networking, ArubaOS-CX 10.12 Fundamentals Guide, Page 101, "Zero Touch Provisioning (ZTP)" chapter: "Zero Touch Provisioning (ZTP) helps to provision the switch automatically with software images and configuration files from the network with little to no user intervention."

3. HPE Aruba Networking, ArubaOS-CX 10.12 Fundamentals Guide, Page 121, "Virtual Switching Framework (VSF)" chapter: "Virtual Switching Framework (VSF) is a virtualization technology that stacks up to 10 switches of the same family into one virtual device called a 'stack'."