[ 1829.031547][T16561] br0: port 1(dummy0) entered blocking state
[ 1829.031737][T16561] br0: port 1(dummy0) entered disabled state
[ 1829.031910][T16561] dummy0: entered allmulticast mode
[ 1829.032911][T16561] dummy0: entered promiscuous mode
[ 1829.058803][T16562] br0: port 1(dummy0) entered blocking state
[ 1829.059621][T16562] br0: port 1(dummy0) entered forwarding state
[ 1831.051822][   T12] dummy0: left allmulticast mode
[ 1831.052866][   T12] dummy0: left promiscuous mode
[ 1831.053097][   T12] br0: port 1(dummy0) entered disabled state