[ 2027.922129][ T5266] br0: port 1(dummy0) entered blocking state
[ 2027.922326][ T5266] br0: port 1(dummy0) entered disabled state
[ 2027.922492][ T5266] dummy0: entered allmulticast mode
[ 2027.923847][ T5266] dummy0: entered promiscuous mode
[ 2027.952821][ T5267] br0: port 1(dummy0) entered blocking state
[ 2027.953084][ T5267] br0: port 1(dummy0) entered forwarding state
[ 2029.935372][   T12] dummy0: left allmulticast mode
[ 2029.936225][   T12] dummy0: left promiscuous mode
[ 2029.936457][   T12] br0: port 1(dummy0) entered disabled state