[ 2251.867038][T23163] br0: port 1(dummy0) entered blocking state
[ 2251.867381][T23163] br0: port 1(dummy0) entered disabled state
[ 2251.867728][T23163] dummy0: entered allmulticast mode
[ 2251.868904][T23163] dummy0: entered promiscuous mode
[ 2251.895200][T23164] br0: port 1(dummy0) entered blocking state
[ 2251.895863][T23164] br0: port 1(dummy0) entered forwarding state
[ 2254.351468][   T12] dummy0: left allmulticast mode
[ 2254.352295][   T12] dummy0: left promiscuous mode
[ 2254.352896][   T12] br0: port 1(dummy0) entered disabled state