OpenShift 4.14 IPSEC handling errors at cluster density exceeding 120 nodes

Solution Verified - Updated -

Issue

  • Cluster traffic degradation and a consistent failure rate of traffic calls between pods using IPSEC
  • Intermittent timeouts between pods on neighboring nodes, but pods on the same node experience no traffic interruptions
  • Traffic loss is observed from pods calling other pods via service, and throughput to applications is degraded by some percentage greater than zero.

Environment

  • Red Hat OpenShift Container Platform (RHOCP) 4.14

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