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**Mandatory** on all nodes. |
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You can run Ganeti either in "bridged mode" or in "routed mode". In
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bridged mode, the default, the instances network interfaces will be
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attached to a software bridge running in dom0. Xen by default creates
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such a bridge at startup, but your distribution might have a different
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way to do things, and you'll definitely need to manually set it up under
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KVM. |
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You can run Ganeti either in "bridged mode", "routed mode" or
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"openvswitch mode". In bridged mode, the default, the instances network
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interfaces will be attached to a software bridge running in dom0. Xen by
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default creates such a bridge at startup, but your distribution might
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have a different way to do things, and you'll definitely need to
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manually set it up under KVM.
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Beware that the default name Ganeti uses is ``xen-br0`` (which was used |
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in Xen 2.0) while Xen 3.0 uses ``xenbr0`` by default. See the |
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instances, through their interface, in the table you specified (under |
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KVM, and in the main table under Xen). |
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Also for "openvswitch mode" under Xen a custom network script is needed. |
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Under KVM everything should work, but you'll need to configure your |
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switches outside of Ganeti (as for bridges). |
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.. admonition:: Bridging issues with certain kernels |
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Some kernel versions (e.g. 2.6.32) have an issue where the bridge |
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