[ 1990.625811][T23841] br0: port 1(dummy0) entered blocking state
[ 1990.626034][T23841] br0: port 1(dummy0) entered disabled state
[ 1990.626269][T23841] dummy0: entered allmulticast mode
[ 1990.627188][T23841] dummy0: entered promiscuous mode
[ 1990.651350][T23842] br0: port 1(dummy0) entered blocking state
[ 1990.651995][T23842] br0: port 1(dummy0) entered forwarding state
[ 1992.660959][   T12] dummy0: left allmulticast mode
[ 1992.661783][   T12] dummy0: left promiscuous mode
[ 1992.662021][   T12] br0: port 1(dummy0) entered disabled state