[ 2210.444246][T30206] br0: port 1(dummy0) entered blocking state
[ 2210.444430][T30206] br0: port 1(dummy0) entered disabled state
[ 2210.444598][T30206] dummy0: entered allmulticast mode
[ 2210.445596][T30206] dummy0: entered promiscuous mode
[ 2210.483302][T30207] br0: port 1(dummy0) entered blocking state
[ 2210.483742][T30207] br0: port 1(dummy0) entered forwarding state
[ 2212.911741][   T12] dummy0: left allmulticast mode
[ 2212.912820][   T12] dummy0: left promiscuous mode
[ 2212.913051][   T12] br0: port 1(dummy0) entered disabled state