[ 2010.162975][ T9050] br0: port 1(dummy0) entered blocking state
[ 2010.163180][ T9050] br0: port 1(dummy0) entered disabled state
[ 2010.163360][ T9050] dummy0: entered allmulticast mode
[ 2010.164557][ T9050] dummy0: entered promiscuous mode
[ 2010.184703][ T9051] br0: port 1(dummy0) entered blocking state
[ 2010.184989][ T9051] br0: port 1(dummy0) entered forwarding state
[ 2012.175844][   T12] dummy0: left allmulticast mode
[ 2012.176136][   T12] dummy0: left promiscuous mode
[ 2012.176355][   T12] br0: port 1(dummy0) entered disabled state