[ 1870.956509][T18630] br0: port 1(dummy0) entered blocking state
[ 1870.956708][T18630] br0: port 1(dummy0) entered disabled state
[ 1870.956869][T18630] dummy0: entered allmulticast mode
[ 1870.957835][T18630] dummy0: entered promiscuous mode
[ 1870.988108][T18631] br0: port 1(dummy0) entered blocking state
[ 1870.988398][T18631] br0: port 1(dummy0) entered forwarding state
[ 1872.982756][   T12] dummy0: left allmulticast mode
[ 1872.983516][   T12] dummy0: left promiscuous mode
[ 1872.983974][   T12] br0: port 1(dummy0) entered disabled state