[ 1978.526151][T25951] br0: port 1(dummy0) entered blocking state
[ 1978.526400][T25951] br0: port 1(dummy0) entered disabled state
[ 1978.526630][T25951] dummy0: entered allmulticast mode
[ 1978.527847][T25951] dummy0: entered promiscuous mode
[ 1978.557307][T25952] br0: port 1(dummy0) entered blocking state
[ 1978.557568][T25952] br0: port 1(dummy0) entered forwarding state
[ 1980.629489][   T12] dummy0: left allmulticast mode
[ 1980.629814][   T12] dummy0: left promiscuous mode
[ 1980.630068][   T12] br0: port 1(dummy0) entered disabled state