This TruthValue indicates whether the cross-connect error defect flag is set for this service, a specific CFM defect that fires when CCMs from a different maintenance association are received, typically signaling that two services have been accidentally bridged or misconfigured onto the same VLAN/path. An admin treats this flag as one of the more serious CFM defects, since a cross-connect condition often means a real data-plane misconfiguration (like two customer services leaking into each other) rather than just a monitoring glitch. For example, this flag setting 'true' on a customer EVC would prompt an urgent check for accidental VLAN or tunnel overlap with another customer's service, since traffic isolation itself may be compromised.