[ 1841.452137] br0: port 1(dummy0) entered blocking state
[ 1841.452218] br0: port 1(dummy0) entered disabled state
[ 1841.452294] dummy0: entered allmulticast mode
[ 1841.452378] dummy0: entered promiscuous mode
[ 1841.456210] br0: port 1(dummy0) entered blocking state
[ 1841.456254] br0: port 1(dummy0) entered forwarding state
[ 1841.717923] dummy0: left allmulticast mode
[ 1841.717988] dummy0: left promiscuous mode
[ 1841.718022] br0: port 1(dummy0) entered disabled state