[ 1608.237674] br0: port 1(dummy0) entered blocking state
[ 1608.237719] br0: port 1(dummy0) entered disabled state
[ 1608.237755] dummy0: entered allmulticast mode
[ 1608.237821] dummy0: entered promiscuous mode
[ 1608.240569] br0: port 1(dummy0) entered blocking state
[ 1608.240633] br0: port 1(dummy0) entered forwarding state
[ 1608.456459] dummy0: left allmulticast mode
[ 1608.456503] dummy0: left promiscuous mode
[ 1608.456545] br0: port 1(dummy0) entered disabled state