[ 2234.694266][T10915] br0: port 1(dummy0) entered blocking state
[ 2234.694580][T10915] br0: port 1(dummy0) entered disabled state
[ 2234.700595][T10915] dummy0: entered allmulticast mode
[ 2234.701602][T10915] dummy0: entered promiscuous mode
[ 2234.729343][T10916] br0: port 1(dummy0) entered blocking state
[ 2234.729671][T10916] br0: port 1(dummy0) entered forwarding state
[ 2237.269294][   T71] dummy0: left allmulticast mode
[ 2237.269966][   T71] dummy0: left promiscuous mode
[ 2237.270378][   T71] br0: port 1(dummy0) entered disabled state