[ 2009.192576][T24648] br0: port 1(dummy0) entered blocking state
[ 2009.192779][T24648] br0: port 1(dummy0) entered disabled state
[ 2009.192943][T24648] dummy0: entered allmulticast mode
[ 2009.193817][T24648] dummy0: entered promiscuous mode
[ 2009.222434][T24649] br0: port 1(dummy0) entered blocking state
[ 2009.222894][T24649] br0: port 1(dummy0) entered forwarding state
[ 2011.240234][   T12] dummy0: left allmulticast mode
[ 2011.241287][   T12] dummy0: left promiscuous mode
[ 2011.241532][   T12] br0: port 1(dummy0) entered disabled state