[ 2050.604692][T20398] br0: port 1(dummy0) entered blocking state
[ 2050.604893][T20398] br0: port 1(dummy0) entered disabled state
[ 2050.605066][T20398] dummy0: entered allmulticast mode
[ 2050.605939][T20398] dummy0: entered promiscuous mode
[ 2050.631325][T20399] br0: port 1(dummy0) entered blocking state
[ 2050.632186][T20399] br0: port 1(dummy0) entered forwarding state
[ 2052.658671][   T12] dummy0: left allmulticast mode
[ 2052.659669][   T12] dummy0: left promiscuous mode
[ 2052.659904][   T12] br0: port 1(dummy0) entered disabled state