tmnxMobPdnThresBrMgmtCffAttch 1.3.6.1.4.1.6527.3.1.2.71.2.17.1.11

The value of tmnxMobPdnThresBrMgmtCffAttch indicates the percentage of default bearer setup failures. It is calculated as (default bearer setup failures / all default bearer setups) * 100