[ 1691.273372] br0: port 1(dummy0) entered blocking state
[ 1691.273453] br0: port 1(dummy0) entered disabled state
[ 1691.273523] dummy0: entered allmulticast mode
[ 1691.273608] dummy0: entered promiscuous mode
[ 1691.276517] br0: port 1(dummy0) entered blocking state
[ 1691.276582] br0: port 1(dummy0) entered forwarding state
[ 1691.465197] dummy0: left allmulticast mode
[ 1691.465234] dummy0: left promiscuous mode
[ 1691.465265] br0: port 1(dummy0) entered disabled state