[ 2050.653677][ T4757] br0: port 1(dummy0) entered blocking state
[ 2050.653922][ T4757] br0: port 1(dummy0) entered disabled state
[ 2050.654153][ T4757] dummy0: entered allmulticast mode
[ 2050.655215][ T4757] dummy0: entered promiscuous mode
[ 2050.683524][ T4758] br0: port 1(dummy0) entered blocking state
[ 2050.683904][ T4758] br0: port 1(dummy0) entered forwarding state
[ 2052.650007][   T12] dummy0: left allmulticast mode
[ 2052.650642][   T12] dummy0: left promiscuous mode
[ 2052.650889][   T12] br0: port 1(dummy0) entered disabled state