tmnxMobServThresBrMgmtCffSvrReq 1.3.6.1.4.1.6527.3.1.2.66.2.16.1.18

The value of tmnxMobServThresBrMgmtCffSvrReq indicates the percentage of service request failures. It is calculated as (service request failures / all service request handovers) * 100