[ 1885.868259] br0: port 1(dummy0) entered blocking state
[ 1885.868332] br0: port 1(dummy0) entered disabled state
[ 1885.868404] dummy0: entered allmulticast mode
[ 1885.868487] dummy0: entered promiscuous mode
[ 1885.871904] br0: port 1(dummy0) entered blocking state
[ 1885.871935] br0: port 1(dummy0) entered forwarding state
[ 1886.087194] dummy0: left allmulticast mode
[ 1886.087226] dummy0: left promiscuous mode
[ 1886.087254] br0: port 1(dummy0) entered disabled state