[ 2081.141539][ T8140] br0: port 1(dummy0) entered blocking state
[ 2081.141739][ T8140] br0: port 1(dummy0) entered disabled state
[ 2081.142400][ T8140] dummy0: entered allmulticast mode
[ 2081.143743][ T8140] dummy0: entered promiscuous mode
[ 2081.177515][ T8141] br0: port 1(dummy0) entered blocking state
[ 2081.177917][ T8141] br0: port 1(dummy0) entered forwarding state
[ 2083.126342][   T12] dummy0: left allmulticast mode
[ 2083.127529][   T12] dummy0: left promiscuous mode
[ 2083.127820][   T12] br0: port 1(dummy0) entered disabled state