[ 1893.442497][T21191] br0: port 1(dummy0) entered blocking state
[ 1893.442750][T21191] br0: port 1(dummy0) entered disabled state
[ 1893.442978][T21191] dummy0: entered allmulticast mode
[ 1893.450372][T21191] dummy0: entered promiscuous mode
[ 1893.473069][T21192] br0: port 1(dummy0) entered blocking state
[ 1893.473303][T21192] br0: port 1(dummy0) entered forwarding state
[ 1895.430003][   T12] dummy0: left allmulticast mode
[ 1895.430178][   T12] dummy0: left promiscuous mode
[ 1895.430389][   T12] br0: port 1(dummy0) entered disabled state