[ 2222.077631][T32760] br0: port 1(dummy0) entered blocking state
[ 2222.077832][T32760] br0: port 1(dummy0) entered disabled state
[ 2222.077995][T32760] dummy0: entered allmulticast mode
[ 2222.078854][T32760] dummy0: entered promiscuous mode
[ 2222.111642][T32761] br0: port 1(dummy0) entered blocking state
[ 2222.112417][T32761] br0: port 1(dummy0) entered forwarding state
[ 2224.125812][   T12] dummy0: left allmulticast mode
[ 2224.126352][   T12] dummy0: left promiscuous mode
[ 2224.126593][   T12] br0: port 1(dummy0) entered disabled state