[ 2203.556626][ T2967] br0: port 1(dummy0) entered blocking state
[ 2203.556930][ T2967] br0: port 1(dummy0) entered disabled state
[ 2203.557213][ T2967] dummy0: entered allmulticast mode
[ 2203.558212][ T2967] dummy0: entered promiscuous mode
[ 2203.593077][ T2968] br0: port 1(dummy0) entered blocking state
[ 2203.593379][ T2968] br0: port 1(dummy0) entered forwarding state
[ 2206.042431][   T67] dummy0: left allmulticast mode
[ 2206.046179][   T67] dummy0: left promiscuous mode
[ 2206.046519][   T67] br0: port 1(dummy0) entered disabled state