[ 2126.815388][ T9884] br0: port 1(dummy0) entered blocking state
[ 2126.815577][ T9884] br0: port 1(dummy0) entered disabled state
[ 2126.815739][ T9884] dummy0: entered allmulticast mode
[ 2126.816619][ T9884] dummy0: entered promiscuous mode
[ 2126.850220][ T9885] br0: port 1(dummy0) entered blocking state
[ 2126.850874][ T9885] br0: port 1(dummy0) entered forwarding state
[ 2129.001409][   T12] dummy0: left allmulticast mode
[ 2129.001608][   T12] dummy0: left promiscuous mode
[ 2129.001856][   T12] br0: port 1(dummy0) entered disabled state