[ 1805.435446] br0: port 1(dummy0) entered blocking state
[ 1805.435489] br0: port 1(dummy0) entered disabled state
[ 1805.435524] dummy0: entered allmulticast mode
[ 1805.435587] dummy0: entered promiscuous mode
[ 1805.439310] br0: port 1(dummy0) entered blocking state
[ 1805.439345] br0: port 1(dummy0) entered forwarding state
[ 1805.699781] dummy0: left allmulticast mode
[ 1805.699822] dummy0: left promiscuous mode
[ 1805.699882] br0: port 1(dummy0) entered disabled state