[ 2054.500189][T28298] br0: port 1(dummy0) entered blocking state
[ 2054.500377][T28298] br0: port 1(dummy0) entered disabled state
[ 2054.500541][T28298] dummy0: entered allmulticast mode
[ 2054.501416][T28298] dummy0: entered promiscuous mode
[ 2054.528039][T28299] br0: port 1(dummy0) entered blocking state
[ 2054.528249][T28299] br0: port 1(dummy0) entered forwarding state
[ 2056.472013][   T12] dummy0: left allmulticast mode
[ 2056.472202][   T12] dummy0: left promiscuous mode
[ 2056.472420][   T12] br0: port 1(dummy0) entered disabled state