[ 2069.092225][T17156] br0: port 1(dummy0) entered blocking state
[ 2069.092435][T17156] br0: port 1(dummy0) entered disabled state
[ 2069.092600][T17156] dummy0: entered allmulticast mode
[ 2069.094038][T17156] dummy0: entered promiscuous mode
[ 2069.123268][T17157] br0: port 1(dummy0) entered blocking state
[ 2069.123742][T17157] br0: port 1(dummy0) entered forwarding state
[ 2071.422559][   T68] dummy0: left allmulticast mode
[ 2071.423504][   T68] dummy0: left promiscuous mode
[ 2071.423735][   T68] br0: port 1(dummy0) entered disabled state