[ 1811.398597][T10763] br0: port 1(dummy0) entered blocking state
[ 1811.398809][T10763] br0: port 1(dummy0) entered disabled state
[ 1811.398981][T10763] dummy0: entered allmulticast mode
[ 1811.400002][T10763] dummy0: entered promiscuous mode
[ 1811.435812][T10764] br0: port 1(dummy0) entered blocking state
[ 1811.436114][T10764] br0: port 1(dummy0) entered forwarding state
[ 1813.266296][   T12] dummy0: left allmulticast mode
[ 1813.266607][   T12] dummy0: left promiscuous mode
[ 1813.266828][   T12] br0: port 1(dummy0) entered disabled state