[ 1583.130196] br0: port 1(dummy0) entered blocking state
[ 1583.130241] br0: port 1(dummy0) entered disabled state
[ 1583.130279] dummy0: entered allmulticast mode
[ 1583.130333] dummy0: entered promiscuous mode
[ 1583.132743] br0: port 1(dummy0) entered blocking state
[ 1583.132804] br0: port 1(dummy0) entered forwarding state
[ 1583.308510] dummy0: left allmulticast mode
[ 1583.308540] dummy0: left promiscuous mode
[ 1583.308567] br0: port 1(dummy0) entered disabled state