[ 2264.503604][T22954] br0: port 1(dummy0) entered blocking state
[ 2264.503791][T22954] br0: port 1(dummy0) entered disabled state
[ 2264.503960][T22954] dummy0: entered allmulticast mode
[ 2264.505407][T22954] dummy0: entered promiscuous mode
[ 2264.530194][T22955] br0: port 1(dummy0) entered blocking state
[ 2264.530645][T22955] br0: port 1(dummy0) entered forwarding state
[ 2266.813133][   T12] dummy0: left allmulticast mode
[ 2266.813801][   T12] dummy0: left promiscuous mode
[ 2266.814195][   T12] br0: port 1(dummy0) entered disabled state