[ 1859.570372][T21832] br0: port 1(dummy0) entered blocking state
[ 1859.570607][T21832] br0: port 1(dummy0) entered disabled state
[ 1859.570830][T21832] dummy0: entered allmulticast mode
[ 1859.572392][T21832] dummy0: entered promiscuous mode
[ 1859.600534][T21833] br0: port 1(dummy0) entered blocking state
[ 1859.600789][T21833] br0: port 1(dummy0) entered forwarding state
[ 1861.572688][   T69] dummy0: left allmulticast mode
[ 1861.573650][   T69] dummy0: left promiscuous mode
[ 1861.573883][   T69] br0: port 1(dummy0) entered disabled state