[ 1829.187551][ T5408] br0: port 1(dummy0) entered blocking state
[ 1829.187755][ T5408] br0: port 1(dummy0) entered disabled state
[ 1829.187915][ T5408] dummy0: entered allmulticast mode
[ 1829.188778][ T5408] dummy0: entered promiscuous mode
[ 1829.217205][ T5409] br0: port 1(dummy0) entered blocking state
[ 1829.217383][ T5409] br0: port 1(dummy0) entered forwarding state
[ 1831.181664][   T69] dummy0: left allmulticast mode
[ 1831.181847][   T69] dummy0: left promiscuous mode
[ 1831.182061][   T69] br0: port 1(dummy0) entered disabled state