[ 2233.615637][T13366] br0: port 1(dummy0) entered blocking state
[ 2233.615897][T13366] br0: port 1(dummy0) entered disabled state
[ 2233.616106][T13366] dummy0: entered allmulticast mode
[ 2233.617563][T13366] dummy0: entered promiscuous mode
[ 2233.639481][T13367] br0: port 1(dummy0) entered blocking state
[ 2233.639753][T13367] br0: port 1(dummy0) entered forwarding state
[ 2235.618113][ T4300] dummy0: left allmulticast mode
[ 2235.618951][ T4300] dummy0: left promiscuous mode
[ 2235.619188][ T4300] br0: port 1(dummy0) entered disabled state