[ 2134.568845][ T3610] br0: port 1(dummy0) entered blocking state
[ 2134.569045][ T3610] br0: port 1(dummy0) entered disabled state
[ 2134.569211][ T3610] dummy0: entered allmulticast mode
[ 2134.570421][ T3610] dummy0: entered promiscuous mode
[ 2134.597143][ T3611] br0: port 1(dummy0) entered blocking state
[ 2134.597490][ T3611] br0: port 1(dummy0) entered forwarding state
[ 2136.873704][   T12] dummy0: left allmulticast mode
[ 2136.874671][   T12] dummy0: left promiscuous mode
[ 2136.875094][   T12] br0: port 1(dummy0) entered disabled state