[ 2170.286584][T24456] br0: port 1(dummy0) entered blocking state
[ 2170.286770][T24456] br0: port 1(dummy0) entered disabled state
[ 2170.286927][T24456] dummy0: entered allmulticast mode
[ 2170.287914][T24456] dummy0: entered promiscuous mode
[ 2170.316498][T24457] br0: port 1(dummy0) entered blocking state
[ 2170.316858][T24457] br0: port 1(dummy0) entered forwarding state
[ 2172.245118][   T68] dummy0: left allmulticast mode
[ 2172.246008][   T68] dummy0: left promiscuous mode
[ 2172.246250][   T68] br0: port 1(dummy0) entered disabled state