EvEtgRateDiscardPri1

Measurement Group: Egress Throttle Group Performance

Measurement Type: Simple

Measurement Dimension: Arrayed (by ETG ID)

Description: Number of Priority 1 Request Messages discarded (with or without response) due to last connection evaluated for routing being ETG Rate Limited.

Collection Interval: 5 min

Peg Condition: Each time that Routing Layer discarded a Priority 1 Request message due to last connection evaluated being ETG Rate Limited

Measurement Scope: Site

Recovery:

  1. Verify that the "Maximum EMR" for the ETG is set sufficiently high.
  2. Adjust the EMR onset/abatement thresholds if necessary. Setting an abatement threshold too close to its onset threshold may trigger oscillation between higher and lower congestion levels.
  3. Adjust the "Smoothing Factor" parameter for the ETG if necessary. Increasing the "Smoothing Factor" value places more weight towards the current EMR over the smoothed EMR. Decreasing the "Smoothing Factor" value places more weight towards the smoothed EMR over the current EMR.
  4. Verify the "EMR Abatement Timeout" for the ETG is set sufficiently high. Short abatement time periods may result in triggering EMR throttling too rapidly.
  5. Determine if other connections (not part of this ETG) to the adjacent Diameter Node are out of service thus causing more traffic to be sent on connections/peers of this ETG than what the adjacent Diameter Node can support on a per-connection basis.
  6. Determine if the ETG is over-subscribed from a routing perspective. Any recent changes to DSR routing configurable may have inadvertently diverted more message traffic to connections/peers in this ETG.
  7. If the problem persists, contact My Oracle Support (MOS).
Parent topic: Egress Throttle Group Performance measurements