[ 1982.027476][T10596] br0: port 1(dummy0) entered blocking state
[ 1982.027664][T10596] br0: port 1(dummy0) entered disabled state
[ 1982.027827][T10596] dummy0: entered allmulticast mode
[ 1982.029106][T10596] dummy0: entered promiscuous mode
[ 1982.051199][T10597] br0: port 1(dummy0) entered blocking state
[ 1982.051453][T10597] br0: port 1(dummy0) entered forwarding state
[ 1983.976638][   T12] dummy0: left allmulticast mode
[ 1983.977345][   T12] dummy0: left promiscuous mode
[ 1983.977600][   T12] br0: port 1(dummy0) entered disabled state