[ 1828.269848][T30477] br0: port 1(dummy0) entered blocking state
[ 1828.270050][T30477] br0: port 1(dummy0) entered disabled state
[ 1828.270220][T30477] dummy0: entered allmulticast mode
[ 1828.271393][T30477] dummy0: entered promiscuous mode
[ 1828.291212][T30478] br0: port 1(dummy0) entered blocking state
[ 1828.291519][T30478] br0: port 1(dummy0) entered forwarding state
[ 1830.135189][   T71] dummy0: left allmulticast mode
[ 1830.135474][   T71] dummy0: left promiscuous mode
[ 1830.135786][   T71] br0: port 1(dummy0) entered disabled state