[ 2035.126112][ T4717] br0: port 1(dummy0) entered blocking state
[ 2035.126311][ T4717] br0: port 1(dummy0) entered disabled state
[ 2035.126480][ T4717] dummy0: entered allmulticast mode
[ 2035.127354][ T4717] dummy0: entered promiscuous mode
[ 2035.150196][ T4718] br0: port 1(dummy0) entered blocking state
[ 2035.150379][ T4718] br0: port 1(dummy0) entered forwarding state
[ 2037.438960][   T12] dummy0: left allmulticast mode
[ 2037.439952][   T12] dummy0: left promiscuous mode
[ 2037.440181][   T12] br0: port 1(dummy0) entered disabled state