[ 2276.559966][T17584] br0: port 1(dummy0) entered blocking state
[ 2276.560153][T17584] br0: port 1(dummy0) entered disabled state
[ 2276.560319][T17584] dummy0: entered allmulticast mode
[ 2276.561209][T17584] dummy0: entered promiscuous mode
[ 2276.599936][T17585] br0: port 1(dummy0) entered blocking state
[ 2276.600115][T17585] br0: port 1(dummy0) entered forwarding state
[ 2278.996587][   T12] dummy0: left allmulticast mode
[ 2278.996909][   T12] dummy0: left promiscuous mode
[ 2278.997136][   T12] br0: port 1(dummy0) entered disabled state