[ 2288.085291][T21979] br0: port 1(dummy0) entered blocking state
[ 2288.085475][T21979] br0: port 1(dummy0) entered disabled state
[ 2288.085634][T21979] dummy0: entered allmulticast mode
[ 2288.086522][T21979] dummy0: entered promiscuous mode
[ 2288.110976][T21980] br0: port 1(dummy0) entered blocking state
[ 2288.111479][T21980] br0: port 1(dummy0) entered forwarding state
[ 2290.395868][   T69] dummy0: left allmulticast mode
[ 2290.396427][   T69] dummy0: left promiscuous mode
[ 2290.396655][   T69] br0: port 1(dummy0) entered disabled state