[ 2010.676539][T10520] br0: port 1(dummy0) entered blocking state
[ 2010.676767][T10520] br0: port 1(dummy0) entered disabled state
[ 2010.676979][T10520] dummy0: entered allmulticast mode
[ 2010.678898][T10520] dummy0: entered promiscuous mode
[ 2010.705676][T10521] br0: port 1(dummy0) entered blocking state
[ 2010.705958][T10521] br0: port 1(dummy0) entered forwarding state
[ 2012.600975][   T12] dummy0: left allmulticast mode
[ 2012.601316][   T12] dummy0: left promiscuous mode
[ 2012.601556][   T12] br0: port 1(dummy0) entered disabled state