[ 2188.355664][T22695] br0: port 1(dummy0) entered blocking state
[ 2188.355856][T22695] br0: port 1(dummy0) entered disabled state
[ 2188.356032][T22695] dummy0: entered allmulticast mode
[ 2188.357071][T22695] dummy0: entered promiscuous mode
[ 2188.391553][T22696] br0: port 1(dummy0) entered blocking state
[ 2188.392387][T22696] br0: port 1(dummy0) entered forwarding state
[ 2190.336230][   T12] dummy0: left allmulticast mode
[ 2190.337265][   T12] dummy0: left promiscuous mode
[ 2190.337617][   T12] br0: port 1(dummy0) entered disabled state