[ 2032.897034][T19803] br0: port 1(dummy0) entered blocking state
[ 2032.897219][T19803] br0: port 1(dummy0) entered disabled state
[ 2032.897393][T19803] dummy0: entered allmulticast mode
[ 2032.898290][T19803] dummy0: entered promiscuous mode
[ 2032.926865][T19804] br0: port 1(dummy0) entered blocking state
[ 2032.927080][T19804] br0: port 1(dummy0) entered forwarding state
[ 2035.178322][   T12] dummy0: left allmulticast mode
[ 2035.178501][   T12] dummy0: left promiscuous mode
[ 2035.178725][   T12] br0: port 1(dummy0) entered disabled state