[ 1995.749836][ T8713] br0: port 1(dummy0) entered blocking state
[ 1995.750027][ T8713] br0: port 1(dummy0) entered disabled state
[ 1995.750188][ T8713] dummy0: entered allmulticast mode
[ 1995.751208][ T8713] dummy0: entered promiscuous mode
[ 1995.778770][ T8714] br0: port 1(dummy0) entered blocking state
[ 1995.779037][ T8714] br0: port 1(dummy0) entered forwarding state
[ 1997.977617][   T69] dummy0: left allmulticast mode
[ 1997.978621][   T69] dummy0: left promiscuous mode
[ 1997.978848][   T69] br0: port 1(dummy0) entered disabled state