[ 2210.202288][ T4435] br0: port 1(dummy0) entered blocking state
[ 2210.202588][ T4435] br0: port 1(dummy0) entered disabled state
[ 2210.202858][ T4435] dummy0: entered allmulticast mode
[ 2210.204408][ T4435] dummy0: entered promiscuous mode
[ 2210.232570][ T4436] br0: port 1(dummy0) entered blocking state
[ 2210.233224][ T4436] br0: port 1(dummy0) entered forwarding state
[ 2212.688914][   T12] dummy0: left allmulticast mode
[ 2212.689733][   T12] dummy0: left promiscuous mode
[ 2212.690041][   T12] br0: port 1(dummy0) entered disabled state