[ 1562.424263] br0: port 1(dummy0) entered blocking state
[ 1562.424343] br0: port 1(dummy0) entered disabled state
[ 1562.424409] dummy0: entered allmulticast mode
[ 1562.424497] dummy0: entered promiscuous mode
[ 1562.427476] br0: port 1(dummy0) entered blocking state
[ 1562.427516] br0: port 1(dummy0) entered forwarding state
[ 1562.625382] dummy0: left allmulticast mode
[ 1562.625451] dummy0: left promiscuous mode
[ 1562.625516] br0: port 1(dummy0) entered disabled state