This integer flag indicates whether a cross-connection was created by the system itself (value 1) or by a user (value 2, the default), per the description noting a system-created CRS reflects a hardware cross-connection that the user cannot manage. An admin checks this before attempting to delete or modify a cross-connect, since system-created entries represent fixed hardware wiring rather than configurable service paths. For example, trying to tear down what turns out to be a system-managed cross-connect would fail or be blocked, telling the operator it's actually a built-in hardware link.