[ 2147.532295][T22735] br0: port 1(dummy0) entered blocking state
[ 2147.532484][T22735] br0: port 1(dummy0) entered disabled state
[ 2147.532644][T22735] dummy0: entered allmulticast mode
[ 2147.533796][T22735] dummy0: entered promiscuous mode
[ 2147.563353][T22736] br0: port 1(dummy0) entered blocking state
[ 2147.563535][T22736] br0: port 1(dummy0) entered forwarding state
[ 2149.461293][   T12] dummy0: left allmulticast mode
[ 2149.461539][   T12] dummy0: left promiscuous mode
[ 2149.461840][   T12] br0: port 1(dummy0) entered disabled state