[ 2315.680852][ T1029] br0: port 1(dummy0) entered blocking state
[ 2315.681047][ T1029] br0: port 1(dummy0) entered disabled state
[ 2315.681213][ T1029] dummy0: entered allmulticast mode
[ 2315.682100][ T1029] dummy0: entered promiscuous mode
[ 2315.720118][ T1030] br0: port 1(dummy0) entered blocking state
[ 2315.720329][ T1030] br0: port 1(dummy0) entered forwarding state
[ 2317.720265][   T12] dummy0: left allmulticast mode
[ 2317.721318][   T12] dummy0: left promiscuous mode
[ 2317.721553][   T12] br0: port 1(dummy0) entered disabled state