[ 2009.158939][T13419] br0: port 1(dummy0) entered blocking state
[ 2009.159188][T13419] br0: port 1(dummy0) entered disabled state
[ 2009.159419][T13419] dummy0: entered allmulticast mode
[ 2009.160509][T13419] dummy0: entered promiscuous mode
[ 2009.189575][T13420] br0: port 1(dummy0) entered blocking state
[ 2009.189842][T13420] br0: port 1(dummy0) entered forwarding state
[ 2011.226718][   T12] dummy0: left allmulticast mode
[ 2011.227022][   T12] dummy0: left promiscuous mode
[ 2011.227256][   T12] br0: port 1(dummy0) entered disabled state