We loaded image 10.0.10a on a core ICX7650 single unit switch (originally running version 08095j ), upgrade was successful and all settings converted OK from switch to router however most of the connected access switches (Ruckus, Cisco) lost connectivity after the upgrade.
Eventually restarting the core ICX7650 switch all returned to normal but seems like an additional reboot is required after firmware upgrade.
Did anyone else experience this kind of behaviour during upgrade?