[ 2323.298605][T15820] br0: port 1(dummy0) entered blocking state
[ 2323.298805][T15820] br0: port 1(dummy0) entered disabled state
[ 2323.298973][T15820] dummy0: entered allmulticast mode
[ 2323.300308][T15820] dummy0: entered promiscuous mode
[ 2323.331785][T15821] br0: port 1(dummy0) entered blocking state
[ 2323.332079][T15821] br0: port 1(dummy0) entered forwarding state
[ 2325.745779][   T68] dummy0: left allmulticast mode
[ 2325.747190][   T68] dummy0: left promiscuous mode
[ 2325.747608][   T68] br0: port 1(dummy0) entered disabled state