[ 2214.402629][ T8545] br0: port 1(dummy0) entered blocking state
[ 2214.402827][ T8545] br0: port 1(dummy0) entered disabled state
[ 2214.402987][ T8545] dummy0: entered allmulticast mode
[ 2214.403850][ T8545] dummy0: entered promiscuous mode
[ 2214.434120][ T8546] br0: port 1(dummy0) entered blocking state
[ 2214.434349][ T8546] br0: port 1(dummy0) entered forwarding state
[ 2216.450024][   T68] dummy0: left allmulticast mode
[ 2216.450928][   T68] dummy0: left promiscuous mode
[ 2216.451169][   T68] br0: port 1(dummy0) entered disabled state