[ 2157.967258][ T5962] br0: port 1(dummy0) entered blocking state
[ 2157.967893][ T5962] br0: port 1(dummy0) entered disabled state
[ 2157.968067][ T5962] dummy0: entered allmulticast mode
[ 2157.969069][ T5962] dummy0: entered promiscuous mode
[ 2158.001682][ T5963] br0: port 1(dummy0) entered blocking state
[ 2158.001997][ T5963] br0: port 1(dummy0) entered forwarding state
[ 2160.341047][   T70] dummy0: left allmulticast mode
[ 2160.341765][   T70] dummy0: left promiscuous mode
[ 2160.342008][   T70] br0: port 1(dummy0) entered disabled state