[ 1837.984720][T26812] br0: port 1(dummy0) entered blocking state
[ 1837.984922][T26812] br0: port 1(dummy0) entered disabled state
[ 1837.985095][T26812] dummy0: entered allmulticast mode
[ 1837.986002][T26812] dummy0: entered promiscuous mode
[ 1838.020066][T26813] br0: port 1(dummy0) entered blocking state
[ 1838.020281][T26813] br0: port 1(dummy0) entered forwarding state
[ 1839.983998][   T12] dummy0: left allmulticast mode
[ 1839.984228][   T12] dummy0: left promiscuous mode
[ 1839.984501][   T12] br0: port 1(dummy0) entered disabled state