[ 1692.178862] br0: port 1(dummy0) entered blocking state
[ 1692.178939] br0: port 1(dummy0) entered disabled state
[ 1692.179016] dummy0: entered allmulticast mode
[ 1692.179113] dummy0: entered promiscuous mode
[ 1692.182044] br0: port 1(dummy0) entered blocking state
[ 1692.182110] br0: port 1(dummy0) entered forwarding state
[ 1692.382391] dummy0: left allmulticast mode
[ 1692.382420] dummy0: left promiscuous mode
[ 1692.382444] br0: port 1(dummy0) entered disabled state