[ 2102.030879][T17421] br0: port 1(dummy0) entered blocking state
[ 2102.031060][T17421] br0: port 1(dummy0) entered disabled state
[ 2102.031222][T17421] dummy0: entered allmulticast mode
[ 2102.032716][T17421] dummy0: entered promiscuous mode
[ 2102.061146][T17422] br0: port 1(dummy0) entered blocking state
[ 2102.061436][T17422] br0: port 1(dummy0) entered forwarding state
[ 2104.078140][   T12] dummy0: left allmulticast mode
[ 2104.079966][   T12] dummy0: left promiscuous mode
[ 2104.080231][   T12] br0: port 1(dummy0) entered disabled state