[ 1955.572713][ T7817] br0: port 1(dummy0) entered blocking state
[ 1955.572960][ T7817] br0: port 1(dummy0) entered disabled state
[ 1955.573176][ T7817] dummy0: entered allmulticast mode
[ 1955.574231][ T7817] dummy0: entered promiscuous mode
[ 1955.603100][ T7818] br0: port 1(dummy0) entered blocking state
[ 1955.603333][ T7818] br0: port 1(dummy0) entered forwarding state
[ 1957.604457][   T69] dummy0: left allmulticast mode
[ 1957.605442][   T69] dummy0: left promiscuous mode
[ 1957.605727][   T69] br0: port 1(dummy0) entered disabled state