[ 2273.237485][T25643] br0: port 1(dummy0) entered blocking state
[ 2273.237814][T25643] br0: port 1(dummy0) entered disabled state
[ 2273.238099][T25643] dummy0: entered allmulticast mode
[ 2273.239837][T25643] dummy0: entered promiscuous mode
[ 2273.266068][T25644] br0: port 1(dummy0) entered blocking state
[ 2273.266700][T25644] br0: port 1(dummy0) entered forwarding state
[ 2275.786552][   T12] dummy0: left allmulticast mode
[ 2275.788419][   T12] dummy0: left promiscuous mode
[ 2275.788772][   T12] br0: port 1(dummy0) entered disabled state