[ 2072.068828][T13971] br0: port 1(dummy0) entered blocking state
[ 2072.069577][T13971] br0: port 1(dummy0) entered disabled state
[ 2072.069743][T13971] dummy0: entered allmulticast mode
[ 2072.070630][T13971] dummy0: entered promiscuous mode
[ 2072.099337][T13972] br0: port 1(dummy0) entered blocking state
[ 2072.099519][T13972] br0: port 1(dummy0) entered forwarding state
[ 2074.564982][   T12] dummy0: left allmulticast mode
[ 2074.565226][   T12] dummy0: left promiscuous mode
[ 2074.565508][   T12] br0: port 1(dummy0) entered disabled state