[ 1792.542485] br0: port 1(dummy0) entered blocking state
[ 1792.542524] br0: port 1(dummy0) entered disabled state
[ 1792.542564] dummy0: entered allmulticast mode
[ 1792.542611] dummy0: entered promiscuous mode
[ 1792.546221] br0: port 1(dummy0) entered blocking state
[ 1792.546284] br0: port 1(dummy0) entered forwarding state
[ 1792.814835] dummy0: left allmulticast mode
[ 1792.814880] dummy0: left promiscuous mode
[ 1792.814938] br0: port 1(dummy0) entered disabled state