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KVM is just the hypervisor itself. It allows overcommitment without any artificial limit. The limits are provided by any management tools installed on top of KVM, such as OpenStack.


In most cases this is Firewall who is causing troubles. Try to turn it off on the host and virtual machine and ping it again, than if it helps, turn it back on and configure Firewall rules accordingly.


To view the XML config file: virsh xmldump [domain-id, domain-name or domain-uuid] To edit the XML config file: virsh edit [domain-id, domain-name or domain-uuid] Source

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