CheckOVS runs a simple openvswitch command to test whether openvswitch is running or not.

DestroyBridge deletes an `unmanaged` bridge.

DestroyTap destroys an `unmanaged` tap using the `ip` command.

NewBridges creates a new Bridges using d as the default bridge name, tf as the format string for the tap names (e.g.

Bridge stores state about an openvswitch bridge including the taps, tunnels, trunks, and netflow.

BridgeInfo is a summary of fields from a Bridge.

Bridges manages a collection of `Bridge` structs.

Tap represents an interface that is attached to an openvswitch bridge.

TunnelType is used to specify the type of tunnel for `AddTunnel`.