[ 1913.116924][ T2598] br0: port 1(dummy0) entered blocking state
[ 1913.117126][ T2598] br0: port 1(dummy0) entered disabled state
[ 1913.117321][ T2598] dummy0: entered allmulticast mode
[ 1913.118234][ T2598] dummy0: entered promiscuous mode
[ 1913.139271][ T2599] br0: port 1(dummy0) entered blocking state
[ 1913.139580][ T2599] br0: port 1(dummy0) entered forwarding state
[ 1915.185418][   T12] dummy0: left allmulticast mode
[ 1915.185586][   T12] dummy0: left promiscuous mode
[ 1915.185813][   T12] br0: port 1(dummy0) entered disabled state