[ 2007.199730][T16250] br0: port 1(dummy0) entered blocking state
[ 2007.199925][T16250] br0: port 1(dummy0) entered disabled state
[ 2007.200084][T16250] dummy0: entered allmulticast mode
[ 2007.200940][T16250] dummy0: entered promiscuous mode
[ 2007.230731][T16251] br0: port 1(dummy0) entered blocking state
[ 2007.231349][T16251] br0: port 1(dummy0) entered forwarding state
[ 2009.206826][   T12] dummy0: left allmulticast mode
[ 2009.207984][   T12] dummy0: left promiscuous mode
[ 2009.208265][   T12] br0: port 1(dummy0) entered disabled state