[ 2082.534281][ T7959] br0: port 1(dummy0) entered blocking state
[ 2082.534590][ T7959] br0: port 1(dummy0) entered disabled state
[ 2082.534870][ T7959] dummy0: entered allmulticast mode
[ 2082.535854][ T7959] dummy0: entered promiscuous mode
[ 2082.566925][ T7960] br0: port 1(dummy0) entered blocking state
[ 2082.567785][ T7960] br0: port 1(dummy0) entered forwarding state
[ 2085.030277][   T12] dummy0: left allmulticast mode
[ 2085.031047][   T12] dummy0: left promiscuous mode
[ 2085.031404][   T12] br0: port 1(dummy0) entered disabled state