[ 2188.848845][T23920] br0: port 1(dummy0) entered blocking state
[ 2188.849141][T23920] br0: port 1(dummy0) entered disabled state
[ 2188.849427][T23920] dummy0: entered allmulticast mode
[ 2188.850993][T23920] dummy0: entered promiscuous mode
[ 2188.880836][T23921] br0: port 1(dummy0) entered blocking state
[ 2188.881272][T23921] br0: port 1(dummy0) entered forwarding state
[ 2191.246409][   T69] dummy0: left allmulticast mode
[ 2191.247605][   T69] dummy0: left promiscuous mode
[ 2191.247922][   T69] br0: port 1(dummy0) entered disabled state