190 views in 4 days(include mods) and no one answer yet.
If there is a way to know who has viewed a thread I have not discovered it. Does one need a sniperscope
Hope you guys can understand why Linux NEVER beat Windows.
Hope you can understand that you are not paying for support nor is there a paid support infrastructure for CentOS. The cost of M$ or RHEL includes support. Whether or not it is cost-effective, or the virtues of one paid support provider versus another may be a subject of debate, but complaining about the timeliness of unpaid support will not get you much sympathy nor encourage others to provide it.
For more help you will need to provide more information about your situation and requirements in a smart question
In any case, reboots should not be required for a decent OS. A restart of the network services, after changing the configuration, should suffice if the change-over is well-planned and executed. If DHCP is in use at all levels it should be particularly transparent. I'm sure your (presumably paying) customers will appreciate a minimal interruption of services during the transition.