[ 2027.744860][T29878] br0: port 1(dummy0) entered blocking state
[ 2027.745063][T29878] br0: port 1(dummy0) entered disabled state
[ 2027.745231][T29878] dummy0: entered allmulticast mode
[ 2027.746370][T29878] dummy0: entered promiscuous mode
[ 2027.770523][T29879] br0: port 1(dummy0) entered blocking state
[ 2027.770887][T29879] br0: port 1(dummy0) entered forwarding state
[ 2030.010590][   T12] dummy0: left allmulticast mode
[ 2030.010934][   T12] dummy0: left promiscuous mode
[ 2030.011160][   T12] br0: port 1(dummy0) entered disabled state