[ 2215.629480][T20951] br0: port 1(dummy0) entered blocking state
[ 2215.629709][T20951] br0: port 1(dummy0) entered disabled state
[ 2215.629921][T20951] dummy0: entered allmulticast mode
[ 2215.631375][T20951] dummy0: entered promiscuous mode
[ 2215.659546][T20952] br0: port 1(dummy0) entered blocking state
[ 2215.659721][T20952] br0: port 1(dummy0) entered forwarding state
[ 2217.667745][   T70] dummy0: left allmulticast mode
[ 2217.667935][   T70] dummy0: left promiscuous mode
[ 2217.668335][   T70] br0: port 1(dummy0) entered disabled state