VSF In-Service Software Upgrade

In VSF In-Service Software Upgrade (ISSU), the firmware image of the stack can be updated dynamically with minimal downtime. The conductor, standby and members of the stack are upgraded dynamically without having the necessity for them to reboot at all. This means that the traffic won't be interrupted during the upgrade and if an error happens and traffic is interrupted to keep the interruption as short as

possible. Aruba's switch architecture decouples the control plane and the data plane, so it is possible to implement an ISSU mechanism by keeping the data plane up while the control plane manages the upgrade.

VSF ISSU is supported on the Aruba 6300 Switch Series.

VSF ISSU is supported for upgrades between minor releases.

The VSF ISSU feature uses ISSU commands for its operations (configuration & show commands). Refer to the VSF commands section for command details.

Upgrade scope

The current ISSU feature is intended for upgrades between minor releases. This is suitable for stable networks that need critical bug fixes or security fixes instead of full version upgrades to get new functionality.