[ 2109.131151][T21372] br0: port 1(dummy0) entered blocking state
[ 2109.131352][T21372] br0: port 1(dummy0) entered disabled state
[ 2109.131527][T21372] dummy0: entered allmulticast mode
[ 2109.133078][T21372] dummy0: entered promiscuous mode
[ 2109.155384][T21373] br0: port 1(dummy0) entered blocking state
[ 2109.155687][T21373] br0: port 1(dummy0) entered forwarding state
[ 2111.196890][   T69] dummy0: left allmulticast mode
[ 2111.197236][   T69] dummy0: left promiscuous mode
[ 2111.197504][   T69] br0: port 1(dummy0) entered disabled state