[ 1861.653700][T15745] br0: port 1(dummy0) entered blocking state
[ 1861.653937][T15745] br0: port 1(dummy0) entered disabled state
[ 1861.654153][T15745] dummy0: entered allmulticast mode
[ 1861.655085][T15745] dummy0: entered promiscuous mode
[ 1861.678988][T15746] br0: port 1(dummy0) entered blocking state
[ 1861.679387][T15746] br0: port 1(dummy0) entered forwarding state
[ 1863.655713][   T12] dummy0: left allmulticast mode
[ 1863.655911][   T12] dummy0: left promiscuous mode
[ 1863.656139][   T12] br0: port 1(dummy0) entered disabled state