[ 1988.085464][ T9295] br0: port 1(dummy0) entered blocking state
[ 1988.085693][ T9295] br0: port 1(dummy0) entered disabled state
[ 1988.085909][ T9295] dummy0: entered allmulticast mode
[ 1988.087027][ T9295] dummy0: entered promiscuous mode
[ 1988.107873][ T9296] br0: port 1(dummy0) entered blocking state
[ 1988.108048][ T9296] br0: port 1(dummy0) entered forwarding state
[ 1990.146714][   T70] dummy0: left allmulticast mode
[ 1990.146875][   T70] dummy0: left promiscuous mode
[ 1990.147079][   T70] br0: port 1(dummy0) entered disabled state