[ 2038.681458][T30219] br0: port 1(dummy0) entered blocking state
[ 2038.681655][T30219] br0: port 1(dummy0) entered disabled state
[ 2038.681842][T30219] dummy0: entered allmulticast mode
[ 2038.682876][T30219] dummy0: entered promiscuous mode
[ 2038.711004][T30220] br0: port 1(dummy0) entered blocking state
[ 2038.711252][T30220] br0: port 1(dummy0) entered forwarding state
[ 2040.664113][   T68] dummy0: left allmulticast mode
[ 2040.664398][   T68] dummy0: left promiscuous mode
[ 2040.664615][   T68] br0: port 1(dummy0) entered disabled state