[ 2000.343471][ T8041] br0: port 1(dummy0) entered blocking state
[ 2000.343679][ T8041] br0: port 1(dummy0) entered disabled state
[ 2000.349357][ T8041] dummy0: entered allmulticast mode
[ 2000.350367][ T8041] dummy0: entered promiscuous mode
[ 2000.371833][ T8042] br0: port 1(dummy0) entered blocking state
[ 2000.372134][ T8042] br0: port 1(dummy0) entered forwarding state
[ 2002.342635][   T67] dummy0: left allmulticast mode
[ 2002.343776][   T67] dummy0: left promiscuous mode
[ 2002.344012][   T67] br0: port 1(dummy0) entered disabled state