[ 2040.420923][T17773] br0: port 1(dummy0) entered blocking state
[ 2040.421374][T17773] br0: port 1(dummy0) entered disabled state
[ 2040.421550][T17773] dummy0: entered allmulticast mode
[ 2040.424554][T17773] dummy0: entered promiscuous mode
[ 2040.453651][T17774] br0: port 1(dummy0) entered blocking state
[ 2040.454301][T17774] br0: port 1(dummy0) entered forwarding state
[ 2042.381107][   T12] dummy0: left allmulticast mode
[ 2042.382255][   T12] dummy0: left promiscuous mode
[ 2042.382581][   T12] br0: port 1(dummy0) entered disabled state