[ 1890.731343][ T9225] br0: port 1(dummy0) entered blocking state
[ 1890.731569][ T9225] br0: port 1(dummy0) entered disabled state
[ 1890.731781][ T9225] dummy0: entered allmulticast mode
[ 1890.738908][ T9225] dummy0: entered promiscuous mode
[ 1890.762136][ T9226] br0: port 1(dummy0) entered blocking state
[ 1890.762644][ T9226] br0: port 1(dummy0) entered forwarding state
[ 1892.629944][   T70] dummy0: left allmulticast mode
[ 1892.631274][   T70] dummy0: left promiscuous mode
[ 1892.631546][   T70] br0: port 1(dummy0) entered disabled state