@@ -447,10 +447,9 @@ MULTI_HOST=`trueorfalse False $MULTI_HOST`

 # fail.

 #

 # If you are running on a single node and don't need to access the VMs from

-# devices other than that node, you can set the flat interface to the same

-# value as ``FLAT_NETWORK_BRIDGE``.  This will stop the network hiccup from

-# occurring.

-FLAT_INTERFACE=${FLAT_INTERFACE:-$GUEST_INTERFACE_DEFAULT}

+# devices other than that node, you can set FLAT_INTERFACE=

+# This will stop nova from bridging any interfaces into FLAT_NETWORK_BRIDGE.

+FLAT_INTERFACE=${FLAT_INTERFACE-$GUEST_INTERFACE_DEFAULT}

 ## FIXME(ja): should/can we check that FLAT_INTERFACE is sane?