[ 2052.208676][T11779] br0: port 1(dummy0) entered blocking state
[ 2052.208858][T11779] br0: port 1(dummy0) entered disabled state
[ 2052.209028][T11779] dummy0: entered allmulticast mode
[ 2052.209898][T11779] dummy0: entered promiscuous mode
[ 2052.231489][T11780] br0: port 1(dummy0) entered blocking state
[ 2052.231665][T11780] br0: port 1(dummy0) entered forwarding state
[ 2054.176252][   T12] dummy0: left allmulticast mode
[ 2054.177904][   T12] dummy0: left promiscuous mode
[ 2054.178150][   T12] br0: port 1(dummy0) entered disabled state