EvEtgPendingTransCongestionOnset

Measurement Group: Egress Throttle Group Performance

Measurement Type: Simple

Measurement Dimension: Arrayed (by ETG ID)

Description: Number of times an ETG-PCL was advanced.

Collection Interval: 5 min

Peg Condition: Each time the ETG Window Congestion Level is advanced

Measurement Scope: Site

Recovery:

  1. Verify that the "Maximum EPT" for the ETG is set sufficiently high.
  2. Adjust the EPT 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. Verify the "EPT Abatement Timeout" for the ETG is set sufficiently high. Short abatement time periods may result in triggering EPT throttling too rapidly.
  4. 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.
  5. 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.
  6. Determine if the Peer is exhibiting congestion, causing it to either drop the Requests or process them slowly, causing Pending Transactions on DSR to increase and exceed the threshold.
  7. If the problem persists, contact My Oracle Support (MOS).
Parent topic: Egress Throttle Group Performance measurements