[ 2076.820721][ T8459] br0: port 1(dummy0) entered blocking state
[ 2076.820970][ T8459] br0: port 1(dummy0) entered disabled state
[ 2076.821193][ T8459] dummy0: entered allmulticast mode
[ 2076.822173][ T8459] dummy0: entered promiscuous mode
[ 2076.842891][ T8460] br0: port 1(dummy0) entered blocking state
[ 2076.843397][ T8460] br0: port 1(dummy0) entered forwarding state
[ 2078.873641][   T71] dummy0: left allmulticast mode
[ 2078.873850][   T71] dummy0: left promiscuous mode
[ 2078.874134][   T71] br0: port 1(dummy0) entered disabled state