[ 1916.716125][ T9626] br0: port 1(dummy0) entered blocking state
[ 1916.716365][ T9626] br0: port 1(dummy0) entered disabled state
[ 1916.716589][ T9626] dummy0: entered allmulticast mode
[ 1916.717561][ T9626] dummy0: entered promiscuous mode
[ 1916.738420][ T9627] br0: port 1(dummy0) entered blocking state
[ 1916.738717][ T9627] br0: port 1(dummy0) entered forwarding state
[ 1918.466330][   T12] dummy0: left allmulticast mode
[ 1918.466492][   T12] dummy0: left promiscuous mode
[ 1918.466705][   T12] br0: port 1(dummy0) entered disabled state