My organization has a very large Master-Local setup configuration at multiple sites across the country. We currently have one Master Controller that only does just that, and 50+ local controllers at sites, some of which are local controllers with a standby backup in VRRP.
I want to upgrade to the latest 6.4.2.13 image, but I am confused a bit about the process to upgrade.
- If I were to upgrade the Master Controller first and reboot, will that cause an outage for all local controllers or will they remain online?
- If the Master Controller comes back online with the newest software image, will it still be able to talk to the local controllers that are on a previous image until I can get them all upgraded, or do they lose connectivity to the Master until they are on the same image?
- Does the Master push out the software to the local controllers, or do I have to manually install it on each local controller?
One last side question. In the Release Notes for 6.4.2.13, it says that older 3200 series controllers do not support the 6.4.X AOS, but we actually have two 3200 series controlles running 6.4.2.6 image...is that wrong for us to be running that version on them, or can they in fact support the newest software?
Thank you.