[ 2110.316934][ T7460] br0: port 1(dummy0) entered blocking state
[ 2110.317134][ T7460] br0: port 1(dummy0) entered disabled state
[ 2110.317298][ T7460] dummy0: entered allmulticast mode
[ 2110.318162][ T7460] dummy0: entered promiscuous mode
[ 2110.342772][ T7461] br0: port 1(dummy0) entered blocking state
[ 2110.342949][ T7461] br0: port 1(dummy0) entered forwarding state
[ 2112.310966][   T12] dummy0: left allmulticast mode
[ 2112.311160][   T12] dummy0: left promiscuous mode
[ 2112.311390][   T12] br0: port 1(dummy0) entered disabled state