[ 2249.729844][T32171] br0: port 1(dummy0) entered blocking state
[ 2249.730042][T32171] br0: port 1(dummy0) entered disabled state
[ 2249.730206][T32171] dummy0: entered allmulticast mode
[ 2249.731136][T32171] dummy0: entered promiscuous mode
[ 2249.755649][T32172] br0: port 1(dummy0) entered blocking state
[ 2249.755924][T32172] br0: port 1(dummy0) entered forwarding state
[ 2252.115366][   T68] dummy0: left allmulticast mode
[ 2252.116080][   T68] dummy0: left promiscuous mode
[ 2252.116334][   T68] br0: port 1(dummy0) entered disabled state