[ 2193.857383][ T2362] br0: port 1(dummy0) entered blocking state
[ 2193.857620][ T2362] br0: port 1(dummy0) entered disabled state
[ 2193.857832][ T2362] dummy0: entered allmulticast mode
[ 2193.858789][ T2362] dummy0: entered promiscuous mode
[ 2193.884243][ T2363] br0: port 1(dummy0) entered blocking state
[ 2193.884842][ T2363] br0: port 1(dummy0) entered forwarding state
[ 2196.117901][   T12] dummy0: left allmulticast mode
[ 2196.118651][   T12] dummy0: left promiscuous mode
[ 2196.118953][   T12] br0: port 1(dummy0) entered disabled state