[ 2158.174538][T20241] br0: port 1(dummy0) entered blocking state
[ 2158.174856][T20241] br0: port 1(dummy0) entered disabled state
[ 2158.175147][T20241] dummy0: entered allmulticast mode
[ 2158.176146][T20241] dummy0: entered promiscuous mode
[ 2158.202959][T20242] br0: port 1(dummy0) entered blocking state
[ 2158.203606][T20242] br0: port 1(dummy0) entered forwarding state
[ 2160.735487][   T71] dummy0: left allmulticast mode
[ 2160.736585][   T71] dummy0: left promiscuous mode
[ 2160.736940][   T71] br0: port 1(dummy0) entered disabled state