This object indicates the reason of the tunnel reoptimization: - unknown: the reason is not known - periodicTimerExpiry: Periodic Reoptimization - bandwidthCLIChange: the tunnel bandwidth has been changed from CLI - bandwidthOverflow: an auto-bandwidth overflow occurred - bandwidthUnderflow: an auto-bandwidth underflow occured - bandwidthAdjustment: an auto-bandwidth application occured - fastReRoute: a fast re-route occured - cliRequest: User-triggerred - metricTypeChange: tunnel metric type has been changed from CLI - preferredPathExists: preferred-path-exists message received from a downstream node - poSwitchoverTrigger: User-requested path-option switchover - bandwidthChange: bandwidth change - autoBandwidth: Auto Bandwidth - remergeError: Remerge Error - dueToMaximumMetric: Reoptimization due to receiving an LSA with MAX metric - pathProtectionSwitchover: Path Protection Switchover - iEPEnableReoptimization: IEP Enable Reoptimization - affinityPathVerificationFail: Affinity path verification failure - softPreemption: soft preemption (see RFC 5712) - preferredTreeExists: preferred-tree-exists message received from a downstream node - costLimitPathVerificationFail: Cost Limit path verification failure - linkupReopt: link state up - iEPChangeReoptimization: inuse explicit-path change - poChangeReoptimization: inuse path-option change - bfdSessionTypeChange: a bfd session type change occured This object is intended to be included in the trap mplsTunnelReoptimized defined in MPLS-TE-STD-MIB.