[ 1911.563696][ T3166] br0: port 1(dummy0) entered blocking state
[ 1911.563900][ T3166] br0: port 1(dummy0) entered disabled state
[ 1911.564083][ T3166] dummy0: entered allmulticast mode
[ 1911.564997][ T3166] dummy0: entered promiscuous mode
[ 1911.592715][ T3167] br0: port 1(dummy0) entered blocking state
[ 1911.593350][ T3167] br0: port 1(dummy0) entered forwarding state
[ 1913.474318][   T69] dummy0: left allmulticast mode
[ 1913.474524][   T69] dummy0: left promiscuous mode
[ 1913.474797][   T69] br0: port 1(dummy0) entered disabled state