[ 2177.240315][T28200] br0: port 1(dummy0) entered blocking state
[ 2177.240514][T28200] br0: port 1(dummy0) entered disabled state
[ 2177.240687][T28200] dummy0: entered allmulticast mode
[ 2177.241672][T28200] dummy0: entered promiscuous mode
[ 2177.263020][T28201] br0: port 1(dummy0) entered blocking state
[ 2177.263260][T28201] br0: port 1(dummy0) entered forwarding state
[ 2179.320409][   T12] dummy0: left allmulticast mode
[ 2179.320981][   T12] dummy0: left promiscuous mode
[ 2179.321215][   T12] br0: port 1(dummy0) entered disabled state