[ 2054.054003][T11820] br0: port 1(dummy0) entered blocking state
[ 2054.054253][T11820] br0: port 1(dummy0) entered disabled state
[ 2054.054500][T11820] dummy0: entered allmulticast mode
[ 2054.055768][T11820] dummy0: entered promiscuous mode
[ 2054.078219][T11821] br0: port 1(dummy0) entered blocking state
[ 2054.078527][T11821] br0: port 1(dummy0) entered forwarding state
[ 2056.124488][ T8564] dummy0: left allmulticast mode
[ 2056.124778][ T8564] dummy0: left promiscuous mode
[ 2056.125000][ T8564] br0: port 1(dummy0) entered disabled state