[ 1880.473837][ T5055] br0: port 1(dummy0) entered blocking state
[ 1880.474051][ T5055] br0: port 1(dummy0) entered disabled state
[ 1880.474224][ T5055] dummy0: entered allmulticast mode
[ 1880.475141][ T5055] dummy0: entered promiscuous mode
[ 1880.496145][ T5056] br0: port 1(dummy0) entered blocking state
[ 1880.496380][ T5056] br0: port 1(dummy0) entered forwarding state
[ 1882.238673][   T69] dummy0: left allmulticast mode
[ 1882.238861][   T69] dummy0: left promiscuous mode
[ 1882.239080][   T69] br0: port 1(dummy0) entered disabled state