[ 1966.089950][T23260] br0: port 1(dummy0) entered blocking state
[ 1966.090150][T23260] br0: port 1(dummy0) entered disabled state
[ 1966.090311][T23260] dummy0: entered allmulticast mode
[ 1966.091252][T23260] dummy0: entered promiscuous mode
[ 1966.126462][T23261] br0: port 1(dummy0) entered blocking state
[ 1966.126785][T23261] br0: port 1(dummy0) entered forwarding state
[ 1968.076470][   T12] dummy0: left allmulticast mode
[ 1968.077480][   T12] dummy0: left promiscuous mode
[ 1968.077720][   T12] br0: port 1(dummy0) entered disabled state