[ 2153.958621][T16423] br0: port 1(dummy0) entered blocking state
[ 2153.958928][T16423] br0: port 1(dummy0) entered disabled state
[ 2153.959215][T16423] dummy0: entered allmulticast mode
[ 2153.960373][T16423] dummy0: entered promiscuous mode
[ 2153.994270][T16424] br0: port 1(dummy0) entered blocking state
[ 2153.994725][T16424] br0: port 1(dummy0) entered forwarding state
[ 2156.490080][   T12] dummy0: left allmulticast mode
[ 2156.490548][   T12] dummy0: left promiscuous mode
[ 2156.490887][   T12] br0: port 1(dummy0) entered disabled state