[ 2332.980524][T22586] br0: port 1(dummy0) entered blocking state
[ 2332.980872][T22586] br0: port 1(dummy0) entered disabled state
[ 2332.981221][T22586] dummy0: entered allmulticast mode
[ 2332.982274][T22586] dummy0: entered promiscuous mode
[ 2333.008370][T22587] br0: port 1(dummy0) entered blocking state
[ 2333.008670][T22587] br0: port 1(dummy0) entered forwarding state
[ 2335.484859][   T12] dummy0: left allmulticast mode
[ 2335.485222][   T12] dummy0: left promiscuous mode
[ 2335.485648][   T12] br0: port 1(dummy0) entered disabled state