[ 1782.982178] br0: port 1(dummy0) entered blocking state
[ 1782.982223] br0: port 1(dummy0) entered disabled state
[ 1782.982263] dummy0: entered allmulticast mode
[ 1782.982315] dummy0: entered promiscuous mode
[ 1782.985467] br0: port 1(dummy0) entered blocking state
[ 1782.985499] br0: port 1(dummy0) entered forwarding state
[ 1783.232925] dummy0: left allmulticast mode
[ 1783.232954] dummy0: left promiscuous mode
[ 1783.232982] br0: port 1(dummy0) entered disabled state