[ 1593.171391] br0: port 1(dummy0) entered blocking state
[ 1593.171424] br0: port 1(dummy0) entered disabled state
[ 1593.171453] dummy0: entered allmulticast mode
[ 1593.171499] dummy0: entered promiscuous mode
[ 1593.173791] br0: port 1(dummy0) entered blocking state
[ 1593.173820] br0: port 1(dummy0) entered forwarding state
[ 1593.360860] dummy0: left allmulticast mode
[ 1593.360888] dummy0: left promiscuous mode
[ 1593.360976] br0: port 1(dummy0) entered disabled state