An engineer is migrating users from MAB to 802.1X on the network. This must be done during normal business hours with minimal impact to users. Which CoA method should be used?

Port Bounce (Port Reset) physically resets the switch port, causing a momentary loss of link and disrupting any active user sessions.

Port Shutdown disables the switch port entirely, which would completely disconnect the user and require manual intervention or the user to unplug and re-plug.

Session Termination immediately drops the current network session, which is disruptive, although less so than a port bounce, but Session Reauthentication offers a smoother transition.

Session Reauthentication (CoA) is the most appropriate method because it forces the endpoint to reauthenticate without dropping the network connection entirely or resetting the physical port. This allows the network access device to re-evaluate the authentication policy, moving the endpoint from MAB to 802.1X if configured, with minimal disruption to the user's ongoing network session.