[ 2075.784056][ T1835] br0: port 1(dummy0) entered blocking state
[ 2075.784239][ T1835] br0: port 1(dummy0) entered disabled state
[ 2075.784411][ T1835] dummy0: entered allmulticast mode
[ 2075.785265][ T1835] dummy0: entered promiscuous mode
[ 2075.815829][ T1836] br0: port 1(dummy0) entered blocking state
[ 2075.816129][ T1836] br0: port 1(dummy0) entered forwarding state
[ 2077.769011][   T12] dummy0: left allmulticast mode
[ 2077.769993][   T12] dummy0: left promiscuous mode
[ 2077.770220][   T12] br0: port 1(dummy0) entered disabled state