[ 1948.419980][T17143] br0: port 1(dummy0) entered blocking state
[ 1948.420179][T17143] br0: port 1(dummy0) entered disabled state
[ 1948.420350][T17143] dummy0: entered allmulticast mode
[ 1948.421410][T17143] dummy0: entered promiscuous mode
[ 1948.444314][T17144] br0: port 1(dummy0) entered blocking state
[ 1948.444689][T17144] br0: port 1(dummy0) entered forwarding state
[ 1950.437927][   T12] dummy0: left allmulticast mode
[ 1950.438683][   T12] dummy0: left promiscuous mode
[ 1950.439051][   T12] br0: port 1(dummy0) entered disabled state