[CentOS] hosted VMs, VLANs, and firewalld

I'm looking for some information regarding the interaction of KVM, VLANs, firewalld, and the kernel's forwarding configuration. I would appreciate input especially from anyone already running a similar configuration in production. In short, I'm trying to figure out if a current configuration is

[CentOS] Broken KVM System CentOS 7.2

Hello, CentOS 7.2 I have three Server on all is now broken the KVM System, it is not possible to start KVM Clients ? Have any a hint why ? Thanks for a answer -- mit freundlichen Grüßen / best regards, Günther J. Niederwimmer ___ CentOS mailing