[ 2376.805127][ T1796] br0: port 1(dummy0) entered blocking state
[ 2376.805317][ T1796] br0: port 1(dummy0) entered disabled state
[ 2376.805485][ T1796] dummy0: entered allmulticast mode
[ 2376.806405][ T1796] dummy0: entered promiscuous mode
[ 2376.831632][ T1797] br0: port 1(dummy0) entered blocking state
[ 2376.831861][ T1797] br0: port 1(dummy0) entered forwarding state
[ 2379.247649][   T12] dummy0: left allmulticast mode
[ 2379.248602][   T12] dummy0: left promiscuous mode
[ 2379.248853][   T12] br0: port 1(dummy0) entered disabled state