[ 1904.327164][ T3617] br0: port 1(dummy0) entered blocking state
[ 1904.327365][ T3617] br0: port 1(dummy0) entered disabled state
[ 1904.328039][ T3617] dummy0: entered allmulticast mode
[ 1904.329002][ T3617] dummy0: entered promiscuous mode
[ 1904.358308][ T3618] br0: port 1(dummy0) entered blocking state
[ 1904.358673][ T3618] br0: port 1(dummy0) entered forwarding state
[ 1906.342465][   T12] dummy0: left allmulticast mode
[ 1906.343142][   T12] dummy0: left promiscuous mode
[ 1906.343396][   T12] br0: port 1(dummy0) entered disabled state