[ 1819.447043] br0: port 1(dummy0) entered blocking state
[ 1819.447121] br0: port 1(dummy0) entered disabled state
[ 1819.447178] dummy0: entered allmulticast mode
[ 1819.447252] dummy0: entered promiscuous mode
[ 1819.451142] br0: port 1(dummy0) entered blocking state
[ 1819.451184] br0: port 1(dummy0) entered forwarding state
[ 1819.699613] dummy0: left allmulticast mode
[ 1819.699687] dummy0: left promiscuous mode
[ 1819.699748] br0: port 1(dummy0) entered disabled state