[ 1822.345028][T12534] br0: port 1(dummy0) entered blocking state
[ 1822.345229][T12534] br0: port 1(dummy0) entered disabled state
[ 1822.345406][T12534] dummy0: entered allmulticast mode
[ 1822.346324][T12534] dummy0: entered promiscuous mode
[ 1822.371106][T12535] br0: port 1(dummy0) entered blocking state
[ 1822.371420][T12535] br0: port 1(dummy0) entered forwarding state
[ 1824.135713][   T68] dummy0: left allmulticast mode
[ 1824.135881][   T68] dummy0: left promiscuous mode
[ 1824.136088][   T68] br0: port 1(dummy0) entered disabled state