[ 2326.820791][T21606] br0: port 1(dummy0) entered blocking state
[ 2326.821556][T21606] br0: port 1(dummy0) entered disabled state
[ 2326.821876][T21606] dummy0: entered allmulticast mode
[ 2326.823124][T21606] dummy0: entered promiscuous mode
[ 2326.849412][T21607] br0: port 1(dummy0) entered blocking state
[ 2326.849815][T21607] br0: port 1(dummy0) entered forwarding state
[ 2329.323556][   T71] dummy0: left allmulticast mode
[ 2329.323973][   T71] dummy0: left promiscuous mode
[ 2329.324832][   T71] br0: port 1(dummy0) entered disabled state