[ 2035.922816][ T1438] br0: port 1(dummy0) entered blocking state
[ 2035.923014][ T1438] br0: port 1(dummy0) entered disabled state
[ 2035.923179][ T1438] dummy0: entered allmulticast mode
[ 2035.924042][ T1438] dummy0: entered promiscuous mode
[ 2035.947541][ T1439] br0: port 1(dummy0) entered blocking state
[ 2035.947751][ T1439] br0: port 1(dummy0) entered forwarding state
[ 2037.974531][   T69] dummy0: left allmulticast mode
[ 2037.974735][   T69] dummy0: left promiscuous mode
[ 2037.974965][   T69] br0: port 1(dummy0) entered disabled state