Which three AVPs are needed to enable usage monitoring over Gx on the GGSN? seenagape 10 years ago Which three AVPs are needed to enable usage monitoring over Gx on the GGSN? (Choosethree.) A. Bearer-Identifier B. Monitoring-Key C. QoS-Information D. Granted-Service-Unit E. Usage-Monitoring-Level F. Usage-Monitoring-Support ← Previous question Next question →