[ 2244.012016][T11346] br0: port 1(dummy0) entered blocking state
[ 2244.012340][T11346] br0: port 1(dummy0) entered disabled state
[ 2244.012627][T11346] dummy0: entered allmulticast mode
[ 2244.018874][T11346] dummy0: entered promiscuous mode
[ 2244.054526][T11347] br0: port 1(dummy0) entered blocking state
[ 2244.055042][T11347] br0: port 1(dummy0) entered forwarding state
[ 2246.685391][   T69] dummy0: left allmulticast mode
[ 2246.686855][   T69] dummy0: left promiscuous mode
[ 2246.687241][   T69] br0: port 1(dummy0) entered disabled state