[ 1836.000928] br0: port 1(dummy0) entered blocking state
[ 1836.000979] br0: port 1(dummy0) entered disabled state
[ 1836.001016] dummy0: entered allmulticast mode
[ 1836.001067] dummy0: entered promiscuous mode
[ 1836.004798] br0: port 1(dummy0) entered blocking state
[ 1836.004884] br0: port 1(dummy0) entered forwarding state
[ 1836.227095] dummy0: left allmulticast mode
[ 1836.227171] dummy0: left promiscuous mode
[ 1836.227267] br0: port 1(dummy0) entered disabled state