[ 1980.226813][ T8185] br0: port 1(dummy0) entered blocking state
[ 1980.227607][ T8185] br0: port 1(dummy0) entered disabled state
[ 1980.227783][ T8185] dummy0: entered allmulticast mode
[ 1980.228809][ T8185] dummy0: entered promiscuous mode
[ 1980.259346][ T8186] br0: port 1(dummy0) entered blocking state
[ 1980.259585][ T8186] br0: port 1(dummy0) entered forwarding state
[ 1982.233935][   T70] dummy0: left allmulticast mode
[ 1982.234274][   T70] dummy0: left promiscuous mode
[ 1982.234541][   T70] br0: port 1(dummy0) entered disabled state