diff --git a/doc/source/admin/config-routed-networks.rst b/doc/source/admin/config-routed-networks.rst
index bff9e556a32..cf5740b0618 100644
--- a/doc/source/admin/config-routed-networks.rst
+++ b/doc/source/admin/config-routed-networks.rst
@@ -440,7 +440,8 @@ segment contains one IPv4 subnet and one IPv6 subnet.
       If a fixed IP is specified by the user in the port create request, that
       particular IP is allocated immediately to the port. However, creating a
       port and passing it to an instance yields a different behavior than
-      conventional networks. The Networking service defers assignment of IP
+      conventional networks. If the fixed IP is not specified on the port
+      create request, the Networking service defers assignment of IP
       addresses to the port until the particular compute node becomes
       apparent. For example: