[ 1914.535025] br0: port 1(dummy0) entered blocking state
[ 1914.535063] br0: port 1(dummy0) entered disabled state
[ 1914.535102] dummy0: entered allmulticast mode
[ 1914.535145] dummy0: entered promiscuous mode
[ 1914.538540] br0: port 1(dummy0) entered blocking state
[ 1914.538581] br0: port 1(dummy0) entered forwarding state
[ 1914.797934] dummy0: left allmulticast mode
[ 1914.798024] dummy0: left promiscuous mode
[ 1914.798057] br0: port 1(dummy0) entered disabled state