[ 2197.615525][T24539] br0: port 1(dummy0) entered blocking state
[ 2197.615722][T24539] br0: port 1(dummy0) entered disabled state
[ 2197.616370][T24539] dummy0: entered allmulticast mode
[ 2197.617231][T24539] dummy0: entered promiscuous mode
[ 2197.642901][T24540] br0: port 1(dummy0) entered blocking state
[ 2197.643090][T24540] br0: port 1(dummy0) entered forwarding state
[ 2199.653830][   T12] dummy0: left allmulticast mode
[ 2199.654877][   T12] dummy0: left promiscuous mode
[ 2199.655121][   T12] br0: port 1(dummy0) entered disabled state