[ 2170.169676][T27420] br0: port 1(dummy0) entered blocking state
[ 2170.169876][T27420] br0: port 1(dummy0) entered disabled state
[ 2170.170035][T27420] dummy0: entered allmulticast mode
[ 2170.170870][T27420] dummy0: entered promiscuous mode
[ 2170.199517][T27421] br0: port 1(dummy0) entered blocking state
[ 2170.199781][T27421] br0: port 1(dummy0) entered forwarding state
[ 2172.081824][   T69] dummy0: left allmulticast mode
[ 2172.082482][   T69] dummy0: left promiscuous mode
[ 2172.082757][   T69] br0: port 1(dummy0) entered disabled state