[ 2177.554080][T23752] br0: port 1(dummy0) entered blocking state
[ 2177.554274][T23752] br0: port 1(dummy0) entered disabled state
[ 2177.554437][T23752] dummy0: entered allmulticast mode
[ 2177.555556][T23752] dummy0: entered promiscuous mode
[ 2177.579362][T23753] br0: port 1(dummy0) entered blocking state
[ 2177.579747][T23753] br0: port 1(dummy0) entered forwarding state
[ 2179.531234][   T70] dummy0: left allmulticast mode
[ 2179.532062][   T70] dummy0: left promiscuous mode
[ 2179.532285][   T70] br0: port 1(dummy0) entered disabled state