Section: 17.8.2 Permanent Failures
Content: Errors that fall within the Permanent Failures category are used to inform the peer that the request failed, and should not be attempted again. The Result-Code AVP values defined in Diameter Base IETF RFC 6733 [111] are applicable. Also the following specific Gmb Experimental-Result-Code values are defined for permanent failures: DIAMETER_ERROR_START_INDICATION (5120) This error covers the case when a MBMS Session Start procedure could not be performed due to some of the required session attributes that are necessary to activate the bearer resources are missing (QoS, MBMS Service Area…). The Failed-AVP AVP must contain the missing AVP. DIAMETER_ERROR_STOP_INDICATION (5121) An indication of session stop has been received with no session start procedure running. DIAMETER_ERROR_UNKNOWN_MBMS_BEARER_SERVICE (5122) The requested MBMS service is unknown at the BM-SC. DIAMETER_ERROR_SERVICE_AREA (5123) The MBMS service area indicated for a specific MBMS Bearer Service is unknown or not available.