[ 2333.855783][T17875] br0: port 1(dummy0) entered blocking state
[ 2333.856135][T17875] br0: port 1(dummy0) entered disabled state
[ 2333.856473][T17875] dummy0: entered allmulticast mode
[ 2333.857529][T17875] dummy0: entered promiscuous mode
[ 2333.885644][T17876] br0: port 1(dummy0) entered blocking state
[ 2333.886125][T17876] br0: port 1(dummy0) entered forwarding state
[ 2336.391274][   T12] dummy0: left allmulticast mode
[ 2336.392404][   T12] dummy0: left promiscuous mode
[ 2336.392740][   T12] br0: port 1(dummy0) entered disabled state