[ 2075.682789][T21219] br0: port 1(dummy0) entered blocking state
[ 2075.682995][T21219] br0: port 1(dummy0) entered disabled state
[ 2075.683163][T21219] dummy0: entered allmulticast mode
[ 2075.684053][T21219] dummy0: entered promiscuous mode
[ 2075.711932][T21220] br0: port 1(dummy0) entered blocking state
[ 2075.712287][T21220] br0: port 1(dummy0) entered forwarding state
[ 2078.101427][   T12] dummy0: left allmulticast mode
[ 2078.102193][   T12] dummy0: left promiscuous mode
[ 2078.102660][   T12] br0: port 1(dummy0) entered disabled state